use timeout in socket_recv fail loop

fixed the examples
Minor cleanup, removed duplicate timeout vars & replaced with float [sec], added socket Tout setter
2017-09-02 14:35:28 +02:00 · 2016-11-20 11:29:09 +01:00 · 2016-11-18 16:06:15 +01:00 · 2016-11-05 18:00:41 +02:00 · 2016-11-05 17:57:19 +02:00 · 2016-11-04 22:02:04 +02:00
71 changed files with 3496 additions and 1271 deletions
@@ -0,0 +1,5 @@
 /vendor
 composer.lock
 .idea/
 *~
@@ -1,2 +0,0 @@
 vendor
 .svn
@@ -1 +0,0 @@
 a88b5a87fb4cd49f16ce72062cce19d55f1fbf98 0.2
@@ -1,10 +1,33 @@
 +---------------------------------------------------------+
 | ACKNOWLEDGEMENTS                                        |
 +---------------------------------------------------------+
 This project is based on work by Jan Krákora, (c) 2004-2013.
 The original license is reproduced below.
  https://code.google.com/archive/p/phpmodbus/
 Further improvements - John S. Long and other contributors
  https://github.com/adduc/phpmodbus
 Cleanup and namespaces - Ondřej Hruška, 2016
  https://github.com/MightyPork/phpmodbus
 +---------------------------------------------------------+
 | ORIGINAL LICENSE                                        |
 +---------------------------------------------------------+
 The Phpmodbus License, Version 1
 ============================
-Copyright (c) 2004, 2008 Jan Krakora, Wago (http://www.wago.com)
+Copyright (c) 2004, 2013 Jan Krakora
 All rights reserved.
-This license is a legal agreement between you and Jan Krakora, Wago (the "Author")
+This license is a legal agreement between you and Jan Krakora (the "Author")
 for the use of Phpmodbus (the "Software"). By obtaining, using and/or
 copying the Software, you agree that you have read, understood, and will
 comply with the terms and conditions of this license.
@@ -60,3 +83,7 @@ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 End of file.
@@ -1,133 +0,0 @@
 <?php
 /**
 * Phpmodbus Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
 *
 * This source file is subject to the "PhpModbus license" that is bundled
 * with this package in the file license.txt.
 *
 * @author Jan Krakora
 * @copyright Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
 * @license PhpModbus license
 * @category Phpmodbus
 * @package Phpmodbus
 * @version $id$
 */
 /**
 * IecType
 *
 * The class includes set of IEC-1131 data type functions that converts a PHP
 * data types to a IEC data type.
 *
 * @author Jan Krakora
 * @copyright  Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
 * @package Phpmodbus
 */
 class IecType {
    /**
     * iecBYTE
     *
     * Converts a value to IEC-1131 BYTE data type
     *
     * @param value value from 0 to 255
     * @return value IEC BYTE data type
     *
     */
    function iecBYTE($value) {
        return chr($value & 0xFF);
    }
    /**
     * iecINT
     *
     * Converts a value to IEC-1131 INT data type
     *
     * @param value value to be converted
     * @return value IEC-1131 INT data type
     *
     */
    function iecINT($value) {
        return self::iecBYTE(($value >> 8) & 0x00FF) .
                self::iecBYTE(($value & 0x00FF));
    }
    /**
     * iecDINT
     *
     * Converts a value to IEC-1131 DINT data type
     *
     * @param value value to be converted
     * @param value endianness defines endian codding (little endian == 0, big endian == 1)
     * @return value IEC-1131 INT data type
     *
     */
    function iecDINT($value, $endianness = 0) {
        // result with right endianness
        return self::endianness($value, $endianness);
    }
    /**
     * iecREAL
     *
     * Converts a value to IEC-1131 REAL data type. The function uses function  @use float2iecReal.
     *
     * @param value value to be converted
     * @param value endianness defines endian codding (little endian == 0, big endian == 1)
     * @return value IEC-1131 REAL data type
     */
    function iecREAL($value, $endianness = 0) {
        // iecREAL representation
        $real = self::float2iecReal($value);
        // result with right endianness
        return self::endianness($real, $endianness);
    }
    /**
     * float2iecReal
     *
     * This function converts float value to IEC-1131 REAL single precision form.
     *
     * For more see [{@link http://en.wikipedia.org/wiki/Single_precision Single precision on Wiki}] or
     * [{@link http://de.php.net/manual/en/function.base-convert.php PHP base_convert function commentary}, Todd Stokes @ Georgia Tech 21-Nov-2007] or
     * [{@link http://www.php.net/manual/en/function.pack.php PHP pack/unpack functionality}]
     *
     * @param float value to be converted
     * @return value IEC REAL data type
     */
    private function float2iecReal($value) {
        // get float binary string
        $float = pack("f", $value);
        // set 32-bit unsigned integer of the float
        $w = unpack("L", $float);
        return $w[1];
    }
    /**
     * endianness
     *
     * Make endianess as required.
     * For more see http://en.wikipedia.org/wiki/Endianness
     *
     * @param int $value
     * @param bool $endianness
     * @return int
     */
    private function endianness($value, $endianness = 0) {
        if ($endianness == 0)
            return
                    self::iecBYTE(($value >> 8) & 0x000000FF) .
                    self::iecBYTE(($value & 0x000000FF)) .
                    self::iecBYTE(($value >> 24) & 0x000000FF) .
                    self::iecBYTE(($value >> 16) & 0x000000FF);
        else
            return
                    self::iecBYTE(($value >> 24) & 0x000000FF) .
                    self::iecBYTE(($value >> 16) & 0x000000FF) .
                    self::iecBYTE(($value >> 8) & 0x000000FF) .
                    self::iecBYTE(($value & 0x000000FF));
    }
 }
 ?>
@@ -1,543 +0,0 @@
 <?php
 /**
 * Phpmodbus Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
 *  
 * This source file is subject to the "PhpModbus license" that is bundled
 * with this package in the file license.txt.
 *   
 *
 * @copyright  Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
 * @license PhpModbus license 
 * @category Phpmodbus
 * @tutorial Phpmodbus.pkg 
 * @package Phpmodbus 
 * @version $id$
 *  
 */
 require_once dirname(__FILE__) . '/IecType.php';
 require_once dirname(__FILE__) . '/PhpType.php'; 
 /**
 * ModbusMasterUdp
 *
 * This class deals with the MODBUS master using UDP stack.
 *  
 * Implemented MODBUS functions:
 *   - FC  3: read multiple registers
 *   - FC 16: write multiple registers
 *   - FC 23: read write registers
 *   
 * @author Jan Krakora
 * @copyright  Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
 * @package Phpmodbus  
 *
 */
 class ModbusMasterUdp {
  var $sock;
  var $port = "502";
  var $host = "192.168.1.1";
  var $status;
  var $timeout_sec = 5; // 5 sec
  var $endianess = 0; // defines endian codding (little endian == 0, big endian == 1) 
  /**
   * Modbus
   *
   * This is the constructor that defines {@link $host} IP address of the object. 
   *     
   * @param String $host An IP address of a Modbus TCP device. E.g. "192.168.1.1".
   */         
  function ModbusMasterUdp($host){
    $this->host = $host;
  }
  /**
   * __toString
   *
   * Magic method
   */
  function  __toString() {
      return "<pre>" . $this->status . "</pre>";
  }
  /**
   * connect
   *
   * Connect the socket
   *
   * @return bool
   */
  private function connect(){
    // UDP socket
    $this->sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);    
    // connect
    $result = @socket_connect($this->sock, $this->host, $this->port);
    if ($result === false) {
        throw new Exception("socket_connect() failed.</br>Reason: ($result)".
            socket_strerror(socket_last_error($this->sock)));
    } else {
        $this->status .= "Connected\n";
        return true;        
    }    
  }
  /**
   * disconnect
   *
   * Disconnect the socket
   */
  private function disconnect(){    
    socket_close($this->sock);
    $this->status .= "Disconnected\n";
  }
  /**
   * send
   *
   * Send the packet via Modbus
   *
   * @param string $packet
   */
  private function send($packet){
    socket_write($this->sock, $packet, strlen($packet));  
    $this->status .= "Send\n";
  }
  /**
   * rec
   *
   * Receive data from the socket
   *
   * @return bool
   */
  private function rec(){
    socket_set_nonblock($this->sock);
    $readsocks[] = $this->sock;     
    $writesocks = NULL;
    $exceptsocks = NULL;
    $rec = "";
    $lastAccess = time();
    while (socket_select($readsocks, 
            $writesocks, 
            $exceptsocks,
            0, 
            300000) !== FALSE) {
            $this->status .= "Wait data ... \n";
        if (in_array($this->sock, $readsocks)) {
            while (@socket_recv($this->sock, $rec, 2000, 0)) {
                $this->status .= "Data received\n";
                return $rec;
            }
            $lastAccess = time();
        } else {             
            if (time()-$lastAccess >= $this->timeout_sec) {
                throw new Exception( "Watchdog time expired [ " .
                  $this->timeout_sec . " sec]!!! Connection to " . 
                  $this->host . " is not established.");
            }
        }
        $readsocks[] = $this->sock;
    }
  } 
  /**
   * responseCode
   *
   * Check the Modbus response code
   *
   * @param string $packet
   * @return bool
   */
  private function responseCode($packet){    
    if(($packet[7] & 0x80) > 0) {
      throw new Exception("Modbus response error code:" . ord($packet[8]));
    } else {
      $this->status .= "Modbus response error code: NOERROR\n";
      return true;
    }    
  }
  /**
   * readMultipleRegisters
   *
   * Modbus function FC 3(0x03) - Read Multiple Registers.
   * 
   * This function reads {@link $quantity} of Words (2 bytes) from reference 
   * {@link $referenceRead} of a memory of a Modbus device given by 
   * {@link $unitId}.
   *    
   *
   * @param int $unitId usually ID of Modbus device 
   * @param int $reference Reference in the device memory to read data (e.g. in device WAGO 750-841, memory MW0 starts at address 12288).
   * @param int $quantity Amounth of the data to be read from device.
   * @return false|Array Success flag or array of received data.
   */
  function readMultipleRegisters($unitId, $reference, $quantity){
    $this->status .= "readMultipleRegisters: START\n";
    // connect
    $this->connect();
    // send FC 3    
    $packet = $this->readMultipleRegistersPacketBuilder($unitId, $reference, $quantity);
    $this->status .= $this->printPacket($packet);    
    $this->send($packet);
    // receive response
    $rpacket = $this->rec();
    $this->status .= $this->printPacket($rpacket);    
    // parse packet    
    $receivedData = $this->readMultipleRegistersParser($rpacket);
    // disconnect
    $this->disconnect();
    $this->status .= "readMultipleRegisters: DONE\n";
    // return
    return $receivedData;
  }
  /**
   * fc3
   *
   * Alias to {@link readMultipleRegisters} method.
   *
   * @param int $unitId
   * @param int $reference
   * @param int $quantity
   * @return false|Array
   */
  function fc3($unitId, $reference, $quantity){
    return $this->readMultipleRegisters($unitId, $reference, $quantity);
  }
  /**
   * readMultipleRegistersPacketBuilder
   *
   * Packet FC 3 builder - read multiple registers
   *
   * @param int $unitId
   * @param int $reference
   * @param int $quantity
   * @return string
   */
  private function readMultipleRegistersPacketBuilder($unitId, $reference, $quantity){
    $dataLen = 0;
    // build data section
    $buffer1 = "";
    // build body
    $buffer2 = "";
    $buffer2 .= iecType::iecBYTE(3);             // FC 3 = 3(0x03)
    // build body - read section    
    $buffer2 .= iecType::iecINT($reference);  // refnumber = 12288      
    $buffer2 .= iecType::iecINT($quantity);       // quantity
    $dataLen += 5;
    // build header
    $buffer3 = '';
    $buffer3 .= iecType::iecINT(rand(0,65000));   // transaction ID
    $buffer3 .= iecType::iecINT(0);               // protocol ID
    $buffer3 .= iecType::iecINT($dataLen + 1);    // lenght
    $buffer3 .= iecType::iecBYTE($unitId);        //unit ID
    // return packet string
    return $buffer3. $buffer2. $buffer1;
  }
  /**
   * readMultipleRegistersParser
   *
   * FC 3 response parser
   *
   * @param string $packet
   * @return array
   */
  private function readMultipleRegistersParser($packet){    
    $data = array();
    // check Response code
    $this->responseCode($packet);
    // get data
    for($i=0;$i<ord($packet[8]);$i++){
      $data[$i] = ord($packet[9+$i]);
    }    
    return $data;
  }
  /**
   * writeMultipleRegister
   *
   * Modbus function FC16(0x10) - Write Multiple Register.
   *
   * This function writes {@link $data} array at {@link $reference} position of 
   * memory of a Modbus device given by {@link $unitId}.
   *
   *
   * @param int $unitId usually ID of Modbus device 
   * @param int $reference Reference in the device memory (e.g. in device WAGO 750-841, memory MW0 starts at address 12288)
   * @param array $data Array of values to be written.
   * @param array $dataTypes Array of types of values to be written. The array should consists of string "INT", "DINT" and "REAL".    
   * @return bool Success flag
   */       
  function writeMultipleRegister($unitId, $reference, $data, $dataTypes){
    $this->status .= "writeMultipleRegister: START\n";
    // connect
    $this->connect();
    // send FC16    
    $packet = $this->writeMultipleRegisterPacketBuilder($unitId, $reference, $data, $dataTypes);
    $this->status .= $this->printPacket($packet);    
    $this->send($packet);
    // receive response
    $rpacket = $this->rec();
    $this->status .= $this->printPacket($rpacket);    
    // parse packet
    $this->writeMultipleRegisterParser($rpacket);
    // disconnect
    $this->disconnect();
    $this->status .= "writeMultipleRegister: DONE\n";
    return true;
  }
  /**
   * fc16
   *
   * Alias to {@link writeMultipleRegister} method
   *
   * @param int $unitId
   * @param int $reference
   * @param array $data
   * @param array $dataTypes
   * @return bool
   */
  function fc16($unitId, $reference, $data, $dataTypes){    
    return $this->writeMultipleRegister($unitId, $reference, $data, $dataTypes);
  }
  /**
   * writeMultipleRegisterPacketBuilder
   *
   * Packet builder FC16 - WRITE multiple register
   *     e.g.: 4dd90000000d0010300000030603e807d00bb8
   *
   * @param int $unitId
   * @param int $reference
   * @param array $data
   * @param array $dataTypes
   * @return string
   */
  private function writeMultipleRegisterPacketBuilder($unitId, $reference, $data, $dataTypes){
    $dataLen = 0;        
    // build data section
    $buffer1 = "";
    foreach($data as $key=>$dataitem) {
      if($dataTypes[$key]=="INT"){
        $buffer1 .= iecType::iecINT($dataitem);   // register values x
        $dataLen += 2;
      }
      elseif($dataTypes[$key]=="DINT"){
        $buffer1 .= iecType::iecDINT($dataitem, $endianess);   // register values x
        $dataLen += 4;
      }
      elseif($dataTypes[$key]=="REAL") {
        $buffer1 .= iecType::iecREAL($dataitem, $endianess);   // register values x        
        $dataLen += 4;
      }       
      else{
        $buffer1 .= iecType::iecINT($dataitem);   // register values x
        $dataLen += 2;
      }
    }
    // build body
    $buffer2 = "";
    $buffer2 .= iecType::iecBYTE(16);             // FC 16 = 16(0x10)
    $buffer2 .= iecType::iecINT($reference);      // refnumber = 12288      
    $buffer2 .= iecType::iecINT($dataLen/2);        // word count      
    $buffer2 .= iecType::iecBYTE($dataLen);     // byte count
    $dataLen += 6;
    // build header
    $buffer3 = '';
    $buffer3 .= iecType::iecINT(rand(0,65000));   // transaction ID    
    $buffer3 .= iecType::iecINT(0);               // protocol ID    
    $buffer3 .= iecType::iecINT($dataLen + 1);    // lenght    
    $buffer3 .= iecType::iecBYTE($unitId);        //unit ID    
    // return packet string
    return $buffer3. $buffer2. $buffer1;
  }
  /**
   * writeMultipleRegisterParser
   *
   * FC16 response parser
   *
   * @param string $packet
   * @return bool
   */
  private function writeMultipleRegisterParser($packet){
    $this->responseCode($rpacket);
    return true;
  }
  /**
   * readWriteRegisters
   *
   * Modbus function FC23(0x17) - Read Write Registers.
   * 
   * This function writes {@link $data} array at reference {@link $referenceWrite} 
   * position of memory of a Modbus device given by {@link $unitId}. Simultanously, 
   * it returns {@link $quantity} of Words (2 bytes) from reference {@link $referenceRead}.
   *
   *
   * @param int $unitId usually ID of Modbus device 
   * @param int $referenceRead Reference in the device memory to read data (e.g. in device WAGO 750-841, memory MW0 starts at address 12288).
   * @param int $quantity Amounth of the data to be read from device.   
   * @param int $referenceWrite Reference in the device memory to write data.
   * @param array $data Array of values to be written.
   * @param array $dataTypes Array of types of values to be written. The array should consists of string "INT", "DINT" and "REAL".   
   * @return false|Array Success flag or array of data.
   */
  function readWriteRegisters($unitId, $referenceRead, $quantity, $referenceWrite, $data, $dataTypes){
    $this->status .= "readWriteRegisters: START\n";
    // connect
    $this->connect();
    // send FC23    
    $packet = $this->readWriteRegistersPacketBuilder($unitId, $referenceRead, $quantity, $referenceWrite, $data, $dataTypes);
    $this->status .= $this->printPacket($packet);    
    $this->send($packet);
    // receive response
    $rpacket = $this->rec();
    $this->status .= $this->printPacket($rpacket);
    // parse packet
    $receivedData = $this->readWriteRegistersParser($rpacket);
    // disconnect
    $this->disconnect();
    $this->status .= "writeMultipleRegister: DONE\n";
    // return
    return $receivedData;
  }
  /**
   * fc23
   *
   * Alias to {@link readWriteRegisters} method.
   *
   * @param int $unitId
   * @param int $referenceRead
   * @param int $quantity
   * @param int $referenceWrite
   * @param array $data
   * @param array $dataTypes
   * @return false|Array
   */
  function fc23($unitId, $referenceRead, $quantity, $referenceWrite, $data, $dataTypes){
    return $this->readWriteRegisters($unitId, $referenceRead, $quantity, $referenceWrite, $data, $dataTypes);
  }
  /**
   * readWriteRegistersPacketBuilder
   *
   * Packet FC23 builder - READ WRITE registers
   *
   *
   * @param int $unitId
   * @param int $referenceRead
   * @param int $quantity
   * @param int $referenceWrite
   * @param array $data
   * @param array $dataTypes
   * @return string
   */
  private function readWriteRegistersPacketBuilder($unitId, $referenceRead, $quantity, $referenceWrite, $data, $dataTypes){
    $dataLen = 0;        
    // build data section
    $buffer1 = "";
    foreach($data as $key => $dataitem) {
      if($dataTypes[$key]=="INT"){
        $buffer1 .= iecType::iecINT($dataitem);   // register values x
        $dataLen += 2;
      }
      elseif($dataTypes[$key]=="DINT"){
        $buffer1 .= iecType::iecDINT($dataitem, $endianess);   // register values x
        $dataLen += 4;
      }
      elseif($dataTypes[$key]=="REAL") {
        $buffer1 .= iecType::iecREAL($dataitem, $endianess);   // register values x        
        $dataLen += 4;
      }       
      else{
        $buffer1 .= iecType::iecINT($dataitem);   // register values x
        $dataLen += 2;
      }
    }
    // build body
    $buffer2 = "";
    $buffer2 .= iecType::iecBYTE(23);             // FC 23 = 23(0x17)
    // build body - read section    
    $buffer2 .= iecType::iecINT($referenceRead);  // refnumber = 12288      
    $buffer2 .= iecType::iecINT($quantity);       // quantity
    // build body - write section    
    $buffer2 .= iecType::iecINT($referenceWrite); // refnumber = 12288      
    $buffer2 .= iecType::iecINT($dataLen/2);      // word count      
    $buffer2 .= iecType::iecBYTE($dataLen);       // byte count
    $dataLen += 10;
    // build header
    $buffer3 = '';
    $buffer3 .= iecType::iecINT(rand(0,65000));   // transaction ID    
    $buffer3 .= iecType::iecINT(0);               // protocol ID    
    $buffer3 .= iecType::iecINT($dataLen + 1);    // lenght    
    $buffer3 .= iecType::iecBYTE($unitId);        //unit ID    
    // return packet string
    return $buffer3. $buffer2. $buffer1;
  }
  /**
   * readWriteRegistersParser
   *
   * FC23 response parser
   *
   * @param string $packet
   * @return array
   */
  private function readWriteRegistersParser($packet){
    $data = array();
    // if not exception
    if(!$this->responseCode($packet))
      return false;
    // get data
    for($i=0;$i<ord($packet[8]);$i++){
      $data[$i] = ord($packet[9+$i]);
    }    
    return $data;
  }
  /**
   * byte2hex
   *
   * Parse data and get it to the Hex form
   *
   * @param char $value
   * @return string
   */
  private function byte2hex($value){
    $h = dechex(($value >> 4) & 0x0F);
    $l = dechex($value & 0x0F);
    return "$h$l";
  }
  /**
   * printPacket
   *
   * Print a packet in the hex form
   *
   * @param string $packet
   * @return string
   */
  private function printPacket($packet){
    $str = "";   
    $str .= "Packet: "; 
    for($i=0;$i<strlen($packet);$i++){
      $str .= $this->byte2hex(ord($packet[$i]));
    }
    $str .= "\n";
    return $str;
  }
 }
 ?>
@@ -1,249 +0,0 @@
 <?php
 /**
 * Phpmodbus Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
 *
 * This source file is subject to the "PhpModbus license" that is bundled
 * with this package in the file license.txt.
 *
 * @author Jan Krakora
 * @copyright Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
 * @license PhpModbus license
 * @category Phpmodbus
 * @package Phpmodbus
 * @version $id$
 *
 */
 /**
 * PhpType
 *
 * The class includes set of methods that convert the received Modbus data
 * (array of bytes) to the PHP data type, i.e. signed int, unsigned int and float.
 *
 * @author Jan Krakora
 * @copyright  Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
 * @package Phpmodbus
 *
 */
 class PhpType {
    /**
     * bytes2float
     *
     * The function converts array of 4 bytes to float. The return value
     * depends on order of the input bytes (endianning).
     *
     * @param array $values
     * @param bool $endianness
     * @return float
     */
    public static function bytes2float($values, $endianness = 0) {
        $data = array();
        $real = 0;
        // Set the array to correct form
        $data = self::checkData($values);
        // Combine bytes
        $real = self::combineBytes($data, $endianness);
        // Convert the real value to float
        return (float) self::real2float($real);
    }
    /**
     * bytes2signedInt
     *
     * The function converts array of 2 or 4 bytes to signed integer.
     * The return value depends on order of the input bytes (endianning).
     *
     * @param array $values
     * @param bool $endianness
     * @return int
     */
    public static function bytes2signedInt($values, $endianness = 0) {
        $data = array();
        $int = 0;
        // Set the array to correct form
        $data = self::checkData($values);
        // Combine bytes
        $int = self::combineBytes($data, $endianness);
        // In the case of signed 2 byte value convert it to 4 byte one
        if ((count($values) == 2) && ((0x8000 & $int) > 0)) {
            $int = 0xFFFF8000 | $int;
        }
        // Convert the value
        return (int) self::dword2signedInt($int);
    }
    /**
     * bytes2unsignedInt
     *
     * The function converts array of 2 or 4 bytes to unsigned integer.
     * The return value depends on order of the input bytes (endianning).
     *
     * @param array $values
     * @param bool $endianness
     * @return int|float
     */
    public static function bytes2unsignedInt($values, $endianness = 0) {
        $data = array();
        $int = 0;
        // Set the array to correct form
        $data = self::checkData($values);
        // Combine bytes
        $int = self::combineBytes($data, $endianness);
        // Convert the value
        return self::dword2unsignedInt($int);
    }
    /**
     * bytes2string
     *
     * The function converts an values array to the string. The function detects
     * the end of the string by 0x00 character as defined by string standards.
     *
     * @param array $values
     * @param bool $endianness
     * @return string
     */
    public static function bytes2string($values, $endianness = 0) {
        // Prepare string variable
        $str = "";
        // Parse the received data word array
        for($i=0;$i<count($values);$i+=2) {
            if ($endianness) {
                if($values[$i] != 0)
                    $str .= chr($values[$i]);
                else
                    break;
                if($values[$i+1] != 0)
                    $str .= chr($values[$i+1]);
                else
                    break;
            }
            else {
                if($values[$i+1] != 0)
                    $str .= chr($values[$i+1]);
                else
                    break;
                if($values[$i] != 0)
                    $str .= chr($values[$i]);
                else
                    break;
            }
        }
        // return string
        return $str;
    }
    /**
     * real2float
     *
     * This function converts a value in IEC-1131 REAL single precision form to float.
     *
     * For more see [{@link http://en.wikipedia.org/wiki/Single_precision Single precision on Wiki}] or
     * [{@link http://de.php.net/manual/en/function.base-convert.php PHP base_convert function commentary}, Todd Stokes @ Georgia Tech 21-Nov-2007] or
     * [{@link http://www.php.net/manual/en/function.pack.php PHP pack/unpack functionality}]
     *
     * @param value value in IEC REAL data type to be converted
     * @return float float value
     */
    private static function real2float($value) {
        // get unsigned long
        $ulong = pack("L", $value);
        // set float
        $float = unpack("f", $ulong);
        return $float[1];
    }
    /**
     * dword2signedInt
     *
     * Switch double word to signed integer
     *
     * @param int $value
     * @return int
     */
    private static function dword2signedInt($value) {
        if ((0x80000000 & $value) != 0) {
            return -(0x7FFFFFFF & ~$value)-1;
        } else {
            return (0x7FFFFFFF & $value);
        }
    }
    /**
     * dword2signedInt
     *
     * Switch double word to unsigned integer
     *
     * @param int $value
     * @return int|float
     */
    private static function dword2unsignedInt($value) {
        if ((0x80000000 & $value) != 0) {
            return ((float) (0x7FFFFFFF & $value)) + 2147483648;
        } else {
            return (int) (0x7FFFFFFF & $value);
        }
    }
    /**
     * checkData
     *
     * Check if the data variable is array, and check if the values are numeric
     *
     * @param int $data
     * @return int
     */
    private static function checkData($data) {
        // Check the data
        if (!is_array($data) ||
                count($data)<2 ||
                count($data)>4 ||
                count($data)==3) {
            throw new Exception('The input data should be an array of 2 or 4 bytes.');
        }
        // Fill the rest of array by zeroes
        if (count($data) == 2) {
            $data[2] = 0;
            $data[3] = 0;
        }
        // Check the values to be number
        if (!is_numeric($data[0]) ||
                !is_numeric($data[1]) ||
                !is_numeric($data[2]) ||
                !is_numeric($data[3])) {
            throw new Exception('Data are not numeric or the array keys are not indexed by 0,1,2 and 3');
        }
        return $data;
    }
    /**
     * combineBytes
     *
     * Combine bytes together
     *
     * @param int $data
     * @param bool $endianness
     * @return int
     */
    private static function combineBytes($data, $endianness) {
        $value = 0;
        // Combine bytes
        if ($endianness == 0)
            $value = (($data[3] & 0xFF)<<16) |
                    (($data[2] & 0xFF)<<24) |
                    (($data[1] & 0xFF)) |
                    (($data[0] & 0xFF)<<8);
        else
            $value = (($data[3] & 0xFF)<<24) |
                    (($data[2] & 0xFF)<<16) |
                    (($data[1] & 0xFF)<<8) |
                    (($data[0] & 0xFF));
        return $value;
    }
 }
 ?>
@@ -0,0 +1,62 @@
 # phpmodbus
 Implementation of the basic functionality of the Modbus TCP and UDP based protocol using PHP. 
 **NOTE: This is a fork to fix & update the library code (and code alone). Notably, the tests are probably all broken.**
 > **What's new**
 > 
 > This fork adds a namespace and fixes issues encountered when porting to PHP 7
 ## Implemented features
 * Modbus master
 * FC1 - Read coils 
 * FC2 - Read input discretes
 * FC3 - Read holding registers 
 * FC4 - Read holding input registers 
 * FC5 - Write single coil 
 * FC6 - Write single register
 * FC15 - Write multiple coils
 * FC16 - Write multiple registers
 * FC23 - Read/Write multiple registers
 ## Requirements
 * The PHP extension php_sockets.dll should be enabled (server php.ini file)
 ## Example
 ```php
 use PHPModbus/ModbusMaster; 
 use PHPModbus/PhpType; 
 // Modbus master UDP
 $modbus = new ModbusMaster("192.168.1.1", "UDP"); 
 // Read multiple registers
 try {
    $recData = $modbus->readMultipleRegisters(0, 12288, 5); 
 } catch (Exception $e) {
    // Print error information if any
    echo $modbus;
    echo $e;
    exit;
 }
 // Print data in string format
 echo PhpType::bytes2string($recData); 
 ```
 Use the `setTimeout($seconds)` and `setSocketTimeout($read_timeout_sec, $write_timeout_sec)` methods to adjust wait times.
 Most of the code is (to some extent) commented and documented with PhpDoc. You should get useful tooltips in your IDE.
 ## GoogleCode legacy docs & downloads
 This project was originally hosted on (now defunct) Google Code. It's still archived here:
 * [GoogleCode Archived Repo](http://code.google.com/p/phpmodbus)
@@ -1,17 +1,25 @@
 {
-    "name": "adduc/phpmodbus",
+  "name": "mightypork/phpmodbus",
-    "description": "Composer version of PhpModBus",
+  "keywords": ["phpmodbus","modbus"],
  "description": "PhpModbus with namespaces and updated to PHP 7",
  "license": "LGPL",
  "require": {
    "php": "^5.3.2 || ^7.0",
    "ext-sockets": "*"
  },
  "authors": [
    {
      "name": "Honza Krakora",
      "email": "krakora.jan@googlemail.com"
    },
    {
      "name": "Ondřej Hruška",
      "email": "ondra@ondrovo.com"
    }
  ],
  "autoload": {
-        "classmap": [ "Phpmodbus" ]
+    "psr-4": {
-    },
+      "PHPModbus\\": "src/"
-    "require": {
+    }
        "ext-sockets": "*"
  }
 }
@@ -0,0 +1,3 @@
 Those examples have not been updated to use namespaces.
 They may not work. Just for reference.
@@ -1,11 +1,10 @@
 <?php
-require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
+use PHPModbus\ModbusMaster;
 // Create Modbus object
 // $ip = "192.168.1.1";
 $ip = "192.192.15.51";
-$modbus = new ModbusMasterUdp($ip);
+$modbus = new ModbusMaster($ip, "UDP");
 try {
 	// FC 3
@@ -14,9 +13,7 @@ try {
 	$mw0address = 12288;
 	$quantity = 6;
 	$recData = $modbus->readMultipleRegisters($moduleId, $reference, $quantity);
-    print_r($recData);
+} catch (Exception $e) {
 }
 catch (Exception $e) {
 	echo $modbus;
 	echo $e;
 	exit;
@@ -33,10 +30,10 @@ catch (Exception $e) {
 	<h1>Dump of M-memory from WAGO 750-84x series coupler.</h1>
 	<ul>
 		<li>PLC: 750-84x series</li>
-            <li>IP: <?php echo $ip?></li>
+		<li>IP: <?php echo $ip ?></li>
-            <li>Modbus module ID: <?php echo $moduleId?></li>
+		<li>Modbus module ID: <?php echo $moduleId ?></li>
-            <li>Modbus memory reference: <?php echo $reference?></li>
+		<li>Modbus memory reference: <?php echo $reference ?></li>
-            <li>Modbus memory quantity: <?php echo $quantity?></li>
+		<li>Modbus memory quantity: <?php echo $quantity ?></li>
 	</ul>
 	<h2>M-memory dump</h2>
@@ -48,12 +45,12 @@ catch (Exception $e) {
 			<td>value</td>
 		</tr>
 		<?php
-            for($i=0;$i<count($recData);$i+=2) {
+		for ($i = 0; $i < count($recData); $i += 2) {
 			?>
 			<tr>
-                <td><?php echo $i+$reference?></td>
+				<td><?php echo $i + $reference ?></td>
-                <td>MW<?php echo ($i + $reference - $mw0address)/2?></td>
+				<td>MW<?php echo ($i + $reference - $mw0address) / 2 ?></td>
-                <td><?php echo ($recData[$i] << 8)+ $recData[$i+1]?></td>
+				<td><?php echo ($recData[$i] << 8) + $recData[$i + 1] ?></td>
 			</tr>
 			<?php
 		}
@@ -61,9 +58,8 @@ catch (Exception $e) {
 	</table>
 	<h2>Modbus class status</h2>
-        <?php
+
-        echo $modbus;
+	<pre><?= $modbus ?></pre>
        ?>
 	</body>
 </html>
@@ -1,16 +1,16 @@
 <?php
-require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
+use PHPModbus\ModbusMaster;
 use PHPModbus\PhpType;
 // Create Modbus object
-$modbus = new ModbusMasterUdp("192.192.15.51");
+$modbus = new ModbusMaster("192.192.15.51", "UDP");
 try {
 	// FC 3
 	// read 10 words (20 bytes) from device ID=0, address=12288
 	$recData = $modbus->readMultipleRegisters(0, 12288, 10);
-}
+} catch (Exception $e) {
 catch (Exception $e) {
 	// Print error information if any
 	echo $modbus;
 	echo $e;
@@ -28,17 +28,17 @@ $values = array_chunk($recData, 4);
 // Get float from REAL interpretation
 echo "<h3>REAL to Float</h3>\n";
-foreach($values as $bytes)
+foreach ($values as $bytes)
 	echo PhpType::bytes2float($bytes) . "</br>";
 // Get integer from DINT interpretation
 echo "<h3>DINT to integer </h3>\n";
-foreach($values as $bytes)
+foreach ($values as $bytes)
 	echo PhpType::bytes2signedInt($bytes) . "</br>";
 // Get integer of float from DINT interpretation
 echo "<h3>DWORD to integer (or float) </h3>\n";
-foreach($values as $bytes)
+foreach ($values as $bytes)
 	echo PhpType::bytes2unsignedInt($bytes) . "</br>";
 echo "<h2>16 bit types</h2>\n";
@@ -47,15 +47,14 @@ $values = array_chunk($recData, 2);
 // Get signed integer from INT interpretation
 echo "<h3>INT to integer </h3>\n";
-foreach($values as $bytes)
+foreach ($values as $bytes)
 	echo PhpType::bytes2signedInt($bytes) . "</br>";
 // Get unsigned integer from WORD interpretation
 echo "<h3>WORD to integer </h3>\n";
-foreach($values as $bytes)
+foreach ($values as $bytes)
 	echo PhpType::bytes2unsignedInt($bytes) . "</br>";
 // Get string from STRING interpretation
 echo "<h3>STRING to string </h3>\n";
 echo PhpType::bytes2string($recData) . "</br>";
 ?>
@@ -0,0 +1,24 @@
 <?php
 use PHPModbus\ModbusMaster;
 // Create Modbus object
 $modbus = new ModbusMaster("192.192.15.51", "UDP");
 try {
 	// FC 1
 	$recData = $modbus->readCoils(0, 12288, 12);
 } catch (Exception $e) {
 	// Print error information if any
 	echo $modbus;
 	echo $e;
 	exit;
 }
 // Print status information
 echo "</br>Status:</br>" . $modbus;
 // Print read data
 echo "</br>Data:</br>";
 var_dump($recData);
 echo "</br>";
@@ -0,0 +1,27 @@
 <?php
 use PHPModbus\ModbusMaster;
 // Create Modbus object
 $modbus = new ModbusMaster("192.192.15.51", "UDP");
 // Data to be written - supports both 0/1 and booleans (true, false)
 $data = array(
 	1, 0, 1, 1, 0, 1, 1, 1,
 	1, 1, 1, 1, 0, 0, 0, 0,
 	0, 0, 0, 0, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1,
 );
 try {
 	// FC15
 	$modbus->writeMultipleCoils(0, 12288, $data);
 } catch (Exception $e) {
 	// Print error information if any
 	echo $modbus;
 	echo $e;
 	exit;
 }
 // Print status information
 echo $modbus;
@@ -1,19 +1,18 @@
 <?php
-require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
+use PHPModbus\ModbusMaster;
 // Create Modbus object
-$modbus = new ModbusMasterUdp("192.192.15.51");
+$modbus = new ModbusMaster("192.192.15.51", "UDP");
 // Data to be writen
-$data = array(1000, 2000, 3.0);
+$data = array(10, -1000, 2000, 3.0);
-$dataTypes = array("INT", "DINT", "REAL");
+$dataTypes = array("WORD", "INT", "DINT", "REAL");
 try {
 	// FC16
 	$modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
-}
+} catch (Exception $e) {
 catch (Exception $e) {
 	// Print error information if any
 	echo $modbus;
 	echo $e;
@@ -0,0 +1,25 @@
 <?php
 use PHPModbus\ModbusMaster;
 // Create Modbus object
 $modbus = new ModbusMaster("192.192.15.51", "UDP");
 try {
 	// FC 2
 	// read 2 input bits from address 0x0 (Wago input image)
 	$recData = $modbus->readInputDiscretes(0, 0, 2);
 } catch (Exception $e) {
 	// Print error information if any
 	echo $modbus;
 	echo $e;
 	exit;
 }
 // Print status information
 echo "</br>Status:</br>" . $modbus;
 // Print read data
 echo "</br>Data:</br>";
 var_dump($recData);
 echo "</br>";
@@ -0,0 +1,25 @@
 <?php
 use PHPModbus\ModbusMaster;
 // Create Modbus object
 $modbus = new ModbusMaster("192.192.15.51", "UDP");
 // Data to be writen
 $bitValue = true;
 $bitNumber = 2;
 $andMask = 0xFFFF ^ pow(2, $bitNumber);
 $orMask = 0x0000 ^ (pow(2, $bitNumber) * $bitValue);
 try {
 	// FC22
 	$modbus->maskWriteRegister(0, 12288, $andMask, $orMask);
 } catch (Exception $e) {
 	// Print error information if any
 	echo $modbus;
 	echo $e;
 	exit;
 }
 // Print status information
 echo $modbus;
@@ -1,19 +1,18 @@
 <?php
-require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
+use PHPModbus\ModbusMaster;
 // Create Modbus object
-$modbus = new ModbusMasterUdp("192.192.15.51");
+$modbus = new ModbusMaster("192.192.15.51", "UDP");
 // Data to be writen
-$data = array(1000, 2000, 3.0);
+$data = array(10, -1000, 2000, 3.0);
-$dataTypes = array("INT", "DINT", "REAL");
+$dataTypes = array("WORD", "INT", "DINT", "REAL");
 try {
 	// FC23
 	$recData = $modbus->readWriteRegisters(0, 12288, 6, 12288, $data, $dataTypes);
-}
+} catch (Exception $e) {
 catch (Exception $e) {
 	// Print error information if any
 	echo $modbus;
 	echo $e;
@@ -27,5 +26,3 @@ echo "</br>Status:</br>" . $modbus;
 echo "</br>Data:</br>";
 print_r($recData);
 echo "</br>";
 ?>
@@ -1,15 +1,14 @@
 <?php
-require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
+use PHPModbus\ModbusMaster;
 // Create Modbus object
-$modbus = new ModbusMasterUdp("192.192.15.51");
+$modbus = new ModbusMaster("192.192.15.51", "UDP");
 try {
 	// FC 3
 	$recData = $modbus->readMultipleRegisters(0, 12288, 6);
-}
+} catch (Exception $e) {
 catch (Exception $e) {
 	// Print error information if any
 	echo $modbus;
 	echo $e;
@@ -23,4 +22,3 @@ echo "</br>Status:</br>" . $modbus;
 echo "</br>Data:</br>";
 print_r($recData);
 echo "</br>";
 ?>
@@ -0,0 +1,18 @@
 <?php
 use PHPModbus\ModbusMasterUdp;
 // Create Modbus object
 $modbus = new ModbusMasterUdp("192.192.15.51");
 try {
 	// Read input discretes - FC 4
 	$recData = $modbus->readMultipleInputRegisters(0, 0, 2);
 } catch (Exception $e) {
 	// Print error information if any
 	echo $modbus;
 	echo $e;
 	exit;
 }
 var_dump($recData);
@@ -0,0 +1,23 @@
 <?php
 use PHPModbus\ModbusMasterUdp;
 // Create Modbus object
 $modbus = new ModbusMasterUdp("192.192.15.51");
 // Data to be writen - TRUE, FALSE
 $data_true = array(true);
 $data_false = array(false);
 try {
 	// Write single coil - FC5
 	$modbus->writeSingleCoil(0, 12288, $data_true);
 	$modbus->writeSingleCoil(0, 12289, $data_false);
 	$modbus->writeSingleCoil(0, 12290, $data_true);
 	$modbus->writeSingleCoil(0, 12291, $data_false);
 } catch (Exception $e) {
 	// Print error information if any
 	echo $modbus;
 	echo $e;
 	exit;
 }
@@ -0,0 +1,22 @@
 <?php
 use PHPModbus\ModbusMaster;
 // Create Modbus object
 $modbus = new ModbusMaster("192.192.15.51", "UDP");
 // Data to be writen
 $data = array(-1000);
 try {
 	// FC6
 	$modbus->writeSingleRegister(0, 12288, $data);
 } catch (Exception $e) {
 	// Print error information if any
 	echo $modbus;
 	echo $e;
 	exit;
 }
 // Print status information
 echo $modbus;
@@ -1,19 +0,0 @@
 Copyright (c) 2004, 2009 Jan Krakora, Wago (http://www.wago.com)
 All rights reserved.
 Phpmodbus library
 ####################
 Phpmodbus for PHP is a small and easy-to-use Modbus UDP master library. For more
 see project at http://phpmodbus.googlecode.com
 Release notes
 ===============
 0.1 -> 0.2.r20
 ---------------
 + Added new class for conversion from received bytes to PHP data types (PhpType class)
 + Added new data conversion using PhpType example
 + Added new alias methods fc3, fc16 and fc23 (ModbusMasterUdp class)
 * Fixed problems with the endianess when data written (IecType class)
 * Improved commentaries for documentation
@@ -0,0 +1,141 @@
 <?php
 namespace PHPModbus;
 /**
 * Phpmodbus Copyright (c) 2004, 2013 Jan Krakora
 *
 * This source file is subject to the "PhpModbus license" that is bundled
 * with this package in the file license.txt.
 *
 * @author    Jan Krakora
 * @copyright Copyright (c) 2004, 2013 Jan Krakora
 * @license   PhpModbus license
 * @category  Phpmodbus
 * @package   Phpmodbus
 * @version   $id$
 */
 /**
 * IecType
 *
 * The class includes set of IEC-1131 data type functions that converts a PHP
 * data types to a IEC data type.
 *
 * @author     Jan Krakora
 * @copyright  Copyright (c) 2004, 2010 Jan Krakora
 * @package    Phpmodbus
 */
 class IecType
 {
 	/**
 	 * iecBYTE
 	 *
 	 * Converts a value to IEC-1131 BYTE data type
 	 *
 	 * @param int $value from 0 to 255
 	 * @return int IEC BYTE data type
 	 *
 	 */
 	public static function iecBYTE($value)
 	{
 		return chr($value & 0xFF);
 	}
 	/**
 	 * iecINT
 	 *
 	 * Converts a value to IEC-1131 INT data type
 	 *
 	 * @param int $value to be converted
 	 * @return int IEC-1131 INT data type
 	 *
 	 */
 	public static function iecINT($value)
 	{
 		return self::iecBYTE(($value >> 8) & 0x00FF) .
 		self::iecBYTE(($value & 0x00FF));
 	}
 	/**
 	 * iecDINT
 	 *
 	 * Converts a value to IEC-1131 DINT data type
 	 *
 	 * @param int $value     to be converted
 	 * @param int $bigEndian defines endian codding (little endian == 0, big endian == 1)
 	 * @return int IEC-1131 INT data type
 	 *
 	 */
 	public static function iecDINT($value, $bigEndian = 0)
 	{
 		// result with right endianness
 		return self::endianness($value, $bigEndian);
 	}
 	/**
 	 * iecREAL
 	 *
 	 * Converts a value to IEC-1131 REAL data type. The function uses function  @use float2iecReal.
 	 *
 	 * @param int  $value     to be converted
 	 * @param bool $bigEndian defines endian codding (little endian == 0, big endian == 1)
 	 * @return int IEC-1131 REAL data type
 	 */
 	public static function iecREAL($value, $bigEndian = 0)
 	{
 		// iecREAL representation
 		$real = self::float2iecReal($value);
 		// result with right endianness
 		return self::endianness($real, $bigEndian);
 	}
 	/**
 	 * float2iecReal
 	 *
 	 * This function converts float value to IEC-1131 REAL single precision form.
 	 *
 	 * For more see [{@link http://en.wikipedia.org/wiki/Single_precision Single precision on Wiki}] or
 	 * [{@link http://de.php.net/manual/en/function.base-convert.php PHP base_convert function commentary}, Todd Stokes
 	 * @ Georgia Tech 21-Nov-2007] or
 	 * [{@link http://www.php.net/manual/en/function.pack.php PHP pack/unpack functionality}]
 	 *
 	 * @param float $value to be converted
 	 * @return int IEC REAL data type
 	 */
 	private static function float2iecReal($value)
 	{
 		// get float binary string
 		$float = pack("f", $value);
 		// set 32-bit unsigned integer of the float
 		$w = unpack("L", $float);
 		return $w[1];
 	}
 	/**
 	 * endianness
 	 *
 	 * Make endianess as required.
 	 * For more see http://en.wikipedia.org/wiki/Endianness
 	 *
 	 * @param int  $value
 	 * @param bool $bigEndian
 	 * @return int
 	 */
 	private static function endianness($value, $bigEndian = 0)
 	{
 		if ($bigEndian == 0) {
 			return
 				self::iecBYTE(($value >> 8) & 0x000000FF) .
 				self::iecBYTE(($value & 0x000000FF)) .
 				self::iecBYTE(($value >> 24) & 0x000000FF) .
 				self::iecBYTE(($value >> 16) & 0x000000FF);
 		} else {
 			return
 				self::iecBYTE(($value >> 24) & 0x000000FF) .
 				self::iecBYTE(($value >> 16) & 0x000000FF) .
 				self::iecBYTE(($value >> 8) & 0x000000FF) .
 				self::iecBYTE(($value & 0x000000FF));
 		}
 	}
 }
@@ -0,0 +1,51 @@
 <?php
 namespace PHPModbus;
 /**
 * Phpmodbus Copyright (c) 2004, 2012 Jan Krakora
 *
 * This source file is subject to the "PhpModbus license" that is bundled
 * with this package in the file license.txt.
 *
 *
 * @copyright  Copyright (c) 2004, 2012 Jan Krakora
 * @license    PhpModbus license
 * @category   Phpmodbus
 * @tutorial   Phpmodbus.pkg
 * @package    Phpmodbus
 * @version    $id$
 *
 */
 /**
 * ModbusMasterTcp
 *
 * This class deals with the MODBUS master using TCP. Extends ModbusMaster class.
 *
 * Implemented MODBUS functions:
 *   - FC  1: read coils
 *   - FC  3: read multiple registers
 *   - FC 15: write multiple coils
 *   - FC 16: write multiple registers
 *   - FC 23: read write registers
 *
 * @author     Jan Krakora
 * @copyright  Copyright (c) 2004, 2012 Jan Krakora
 * @package    Phpmodbus
 *
 */
 class ModbusMasterTcp extends ModbusMaster
 {
 	/**
 	 * ModbusMasterTcp
 	 *
 	 * This is the constructor that defines {@link $host} IP address of the object.
 	 *
 	 * @param String $host An IP address of a Modbus TCP device. E.g. "192.168.1.1".
 	 */
 	public function __construct($host)
 	{
 		parent::__construct($host, "TCP");
 	}
 }
@@ -0,0 +1,51 @@
 <?php
 namespace PHPModbus;
 /**
 * Phpmodbus Copyright (c) 2004, 2012 Jan Krakora
 *
 * This source file is subject to the "PhpModbus license" that is bundled
 * with this package in the file license.txt.
 *
 *
 * @copyright  Copyright (c) 2004, 2012 Jan Krakora
 * @license    PhpModbus license
 * @category   Phpmodbus
 * @tutorial   Phpmodbus.pkg
 * @package    Phpmodbus
 * @version    $id$
 *
 */
 /**
 * ModbusMasterUdp
 *
 * This class deals with the MODBUS master using UDP stack.
 *
 * Implemented MODBUS master functions:
 *   - FC  1: read coils
 *   - FC  3: read multiple registers
 *   - FC 15: write multiple coils
 *   - FC 16: write multiple registers
 *   - FC 23: read write registers
 *
 * @author     Jan Krakora
 * @copyright  Copyright (c) 2004, 2012 Jan Krakora
 * @package    Phpmodbus
 *
 */
 class ModbusMasterUdp extends ModbusMaster
 {
 	/**
 	 * ModbusMasterUdp
 	 *
 	 * This is the constructor that defines {@link $host} IP address of the object.
 	 *
 	 * @param String $host An IP address of a Modbus UDP device. E.g. "192.168.1.1".
 	 */
 	public function __construct($host)
 	{
 		parent::__construct($host, "UDP");
 	}
 }
@@ -0,0 +1,266 @@
 <?php
 namespace PHPModbus;
 use Exception;
 /**
 * Phpmodbus Copyright (c) 2004, 2012 Jan Krakora
 *
 * This source file is subject to the "PhpModbus license" that is bundled
 * with this package in the file license.txt.
 *
 * @author    Jan Krakora
 * @copyright Copyright (c) 2004, 2012 Jan Krakora
 * @license   PhpModbus license
 * @category  Phpmodbus
 * @package   Phpmodbus
 * @version   $id$
 *
 */
 /**
 * PhpType
 *
 * The class includes set of methods that convert the received Modbus data
 * (array of bytes) to the PHP data type, i.e. signed int, unsigned int and float.
 *
 * @author     Jan Krakora
 * @copyright  Copyright (c) 2004, 2012 Jan Krakora
 * @package    Phpmodbus
 *
 */
 class PhpType
 {
 	/**
 	 * bytes2float
 	 *
 	 * The function converts array of 4 bytes to float. The return value
 	 * depends on order of the input bytes (endianning).
 	 *
 	 * @param array $values
 	 * @param bool  $bigEndian
 	 * @return float
 	 */
 	public static function bytes2float($values, $bigEndian = 0)
 	{
 		// Set the array to correct form
 		$data = self::checkData($values);
 		// Combine bytes
 		$real = self::combineBytes($data, $bigEndian);
 		// Convert the real value to float
 		return (float)self::real2float($real);
 	}
 	/**
 	 * bytes2signedInt
 	 *
 	 * The function converts array of 2 or 4 bytes to signed integer.
 	 * The return value depends on order of the input bytes (endianning).
 	 *
 	 * @param array $values
 	 * @param bool  $bigEndian
 	 * @return int
 	 */
 	public static function bytes2signedInt($values, $bigEndian = 0)
 	{
 		$data = array();
 		$int = 0;
 		// Set the array to correct form
 		$data = self::checkData($values);
 		// Combine bytes
 		$int = self::combineBytes($data, $bigEndian);
 		// In the case of signed 2 byte value convert it to 4 byte one
 		if ((count($values) == 2) && ((0x8000 & $int) > 0)) {
 			$int = 0xFFFF8000 | $int;
 		}
 		// Convert the value
 		return (int)self::dword2signedInt($int);
 	}
 	/**
 	 * bytes2unsignedInt
 	 *
 	 * The function converts array of 2 or 4 bytes to unsigned integer.
 	 * The return value depends on order of the input bytes (endianning).
 	 *
 	 * @param array $values
 	 * @param bool  $bigEndian
 	 * @return int|float
 	 */
 	public static function bytes2unsignedInt($values, $bigEndian = 0)
 	{
 		$data = array();
 		$int = 0;
 		// Set the array to correct form
 		$data = self::checkData($values);
 		// Combine bytes
 		$int = self::combineBytes($data, $bigEndian);
 		// Convert the value
 		return self::dword2unsignedInt($int);
 	}
 	/**
 	 * bytes2string
 	 *
 	 * The function converts an values array to the string. The function detects
 	 * the end of the string by 0x00 character as defined by string standards.
 	 *
 	 * @param array $values
 	 * @param bool  $bigEndian
 	 * @return string
 	 */
 	public static function bytes2string($values, $bigEndian = 0)
 	{
 		// Prepare string variable
 		$str = "";
 		// Parse the received data word array
 		for ($i = 0; $i < count($values); $i += 2) {
 			if ($bigEndian) {
 				if ($values[$i] != 0) {
 					$str .= chr($values[$i]);
 				} else {
 					break;
 				}
 				if ($values[$i + 1] != 0) {
 					$str .= chr($values[$i + 1]);
 				} else {
 					break;
 				}
 			} else {
 				if ($values[$i + 1] != 0) {
 					$str .= chr($values[$i + 1]);
 				} else {
 					break;
 				}
 				if ($values[$i] != 0) {
 					$str .= chr($values[$i]);
 				} else {
 					break;
 				}
 			}
 		}
 		// return string
 		return $str;
 	}
 	/**
 	 * real2float
 	 *
 	 * This function converts a value in IEC-1131 REAL single precision form to float.
 	 *
 	 * For more see [{@link http://en.wikipedia.org/wiki/Single_precision Single precision on Wiki}] or
 	 * [{@link http://de.php.net/manual/en/function.base-convert.php PHP base_convert function commentary}, Todd Stokes
 	 * @ Georgia Tech 21-Nov-2007] or
 	 * [{@link http://www.php.net/manual/en/function.pack.php PHP pack/unpack functionality}]
 	 *
 	 * @param int $value in IEC REAL data type to be converted
 	 * @return float float value
 	 */
 	private static function real2float($value)
 	{
 		// get unsigned long
 		$ulong = pack("L", $value);
 		// set float
 		$float = unpack("f", $ulong);
 		return $float[1];
 	}
 	/**
 	 * dword2signedInt
 	 *
 	 * Switch double word to signed integer
 	 *
 	 * @param int $value
 	 * @return int
 	 */
 	private static function dword2signedInt($value)
 	{
 		if ((0x80000000 & $value) != 0) {
 			return -(0x7FFFFFFF & ~$value) - 1;
 		} else {
 			return (0x7FFFFFFF & $value);
 		}
 	}
 	/**
 	 * dword2signedInt
 	 *
 	 * Switch double word to unsigned integer
 	 *
 	 * @param int $value
 	 * @return int|float
 	 */
 	private static function dword2unsignedInt($value)
 	{
 		if ((0x80000000 & $value) != 0) {
 			return ((float)(0x7FFFFFFF & $value)) + 2147483648;
 		} else {
 			return (int)(0x7FFFFFFF & $value);
 		}
 	}
 	/**
 	 * checkData
 	 *
 	 * Check if the data variable is array, and check if the values are numeric
 	 *
 	 * @param int[] $data
 	 * @return int
 	 * @throws Exception
 	 */
 	private static function checkData($data)
 	{
 		// Check the data
 		if (!is_array($data) ||
 			count($data) < 2 ||
 			count($data) > 4 ||
 			count($data) == 3
 		) {
 			throw new Exception('The input data should be an array of 2 or 4 bytes.');
 		}
 		// Fill the rest of array by zeroes
 		if (count($data) == 2) {
 			$data[2] = 0;
 			$data[3] = 0;
 		}
 		// Check the values to be number
 		if (!is_numeric($data[0]) ||
 			!is_numeric($data[1]) ||
 			!is_numeric($data[2]) ||
 			!is_numeric($data[3])
 		) {
 			throw new Exception('Data are not numeric or the array keys are not indexed by 0,1,2 and 3');
 		}
 		return $data;
 	}
 	/**
 	 * combineBytes
 	 *
 	 * Combine bytes together
 	 *
 	 * @param int  $data
 	 * @param bool $bigEndian
 	 * @return int
 	 */
 	private static function combineBytes($data, $bigEndian)
 	{
 		$value = 0;
 		// Combine bytes
 		if ($bigEndian == 0) {
 			$value = (($data[3] & 0xFF) << 16) |
 				(($data[2] & 0xFF) << 24) |
 				(($data[1] & 0xFF)) |
 				(($data[0] & 0xFF) << 8);
 		} else {
 			$value = (($data[3] & 0xFF) << 24) |
 				(($data[2] & 0xFF) << 16) |
 				(($data[1] & 0xFF) << 8) |
 				(($data[0] & 0xFF));
 		}
 		return $value;
 	}
 }
@@ -0,0 +1,256 @@
 (* @NESTEDCOMMENTS := 'Yes' *)
 (* @PATH := '' *)
 (* @OBJECTFLAGS := '0, 8' *)
 (* @SYMFILEFLAGS := '2048' *)
 PROGRAM PLC_PRG
 VAR
 	(* BOOL, COIL *)
 	COIL1 AT %MX0.0 : BOOL := 0;
 	COIL2 AT %MX0.1 : BOOL := 0;
 	COIL3 AT %MX0.2 : BOOL := 0;
 	COIL4 AT %MX0.3 : BOOL := 0;
 	COIL5 AT %MX0.4 : BOOL := 0;
 	COIL6 AT %MX0.5 : BOOL := 0;
 	COIL7 AT %MX0.6 : BOOL := 0;
 	COIL8 AT %MX0.7 : BOOL := 0;
 	(* BYTE *)
 	BYTE1 AT %MB0 : BYTE := 0;
 	BYTE2 AT %MB1 : BYTE := 0;
 	BYTE3 AT %MB2 : BYTE := 0;
 	BYTE4 AT %MB3 : BYTE := 0;
 	BYTE5 AT %MB4 : BYTE := 0;
 	(* INT *)
 	INT1 AT %MW0 : INT := 0;
 	INT2 AT %MW1 : INT := 0;
 	INT3 AT %MW2 : INT := 0;
 	INT4 AT %MW3 : INT := 0;
 	INT5 AT %MW4 : INT := 0;
 	(* WORD *)
 	WORD1 AT %MW0 : WORD := 0;
 	WORD2 AT %MW1 : WORD := 0;
 	WORD3 AT %MW2 : WORD := 0;
 	WORD4 AT %MW3 : WORD := 0;
 	WORD5 AT %MW4 : WORD := 0;
 	(* DINT *)
 	DINT1 AT %MD0 : DINT := 0;
 	DINT2 AT %MD1 : DINT := 0;
 	DINT3 AT %MD2 : DINT := 0;
 	DINT4 AT %MD3 : DINT := 0;
 	DINT5 AT %MD4 : DINT := 0;
 	(* DWORD *)
 	DWORD1 AT %MD0 : DWORD := 0;
 	DWORD2 AT %MD1 : DWORD := 0;
 	DWORD3 AT %MD2 : DWORD := 0;
 	DWORD4 AT %MD3 : DWORD := 0;
 	DWORD5 AT %MD4 : DWORD := 0;
 	(* REAL *)
 	REAL1 AT %MD0 : REAL := 0;
 	REAL2 AT %MD1 : REAL := 0;
 	REAL3 AT %MD2 : REAL := 0;
 	REAL4 AT %MD3 : REAL := 0;
 	REAL5 AT %MD4 : REAL := 0;
 	(* String *)
 	STRING1 AT %MW0 : STRING := 'Hello word!!!';
 END_VAR
 (* @END_DECLARATION := '0' *)
 (* Something to do *)
 ;
 END_PROGRAM
 (* @NESTEDCOMMENTS := 'Yes' *)
 (* @GLOBAL_VARIABLE_LIST := 'Global_Variables' *)
 (* @PATH := '' *)
 (* @OBJECTFLAGS := '0, 8' *)
 (* @SYMFILEFLAGS := '2048' *)
 VAR_GLOBAL
 END_VAR
 (* @OBJECT_END := 'Global_Variables' *)
 (* @CONNECTIONS := Global_Variables
 FILENAME : ''
 FILETIME : 0
 EXPORT : 0
 NUMOFCONNECTIONS : 0
 *)
 (* @NESTEDCOMMENTS := 'Yes' *)
 (* @GLOBAL_VARIABLE_LIST := 'Variable_Configuration' *)
 (* @PATH := '' *)
 (* @OBJECTFLAGS := '0, 8' *)
 (* @SYMFILEFLAGS := '2048' *)
 VAR_CONFIG
 END_VAR
 (* @OBJECT_END := 'Variable_Configuration' *)
 (* @CONNECTIONS := Variable_Configuration
 FILENAME : ''
 FILETIME : 0
 EXPORT : 0
 NUMOFCONNECTIONS : 0
 *)
 _ALARMCONFIG
 _ALARMCONFIGNEXTTEXTID : 10002
 _ALARMCONFIGFORMATS : 'HH$':$'mm$':$'ss','dd$'-$'MM$'-$'yyyy'
 _ALARMCLASSLIST : 1
 _ALARMCLASSID : 0
 _ALARMCLASSACKTYPE : 0
 _ALARMCLASSNAME : 'DEFAULT'
 _ALARMCLASSDESCRIPTION : ''
 _ALARMCLASSBGCOLORS : 16777215,16777215,16777215
 _ALARMCLASSTEXTCOLORS : 3394560,255,16711680
 _ALARMCLASSBITMAPS : '','',''
 _ALARMACTIONLIST : 0
 (* @ALARMCLASSRESETCOLORS := '_ALARMCLASSRESETCOLORS: 33023,16777215' *)
 (* @ALARMCLASSRESETBITMAP := '_ALARMCLASSRESETBITMAP: $'$'' *)
 _ALARMGROUPLISTNAME : 'System'
 _ALARMGROUPPATH : 'System'
 _ALARMGROUPLIST : 0
 _VISUALSETTINGSFLAGS : 0,0,0,0
 _VISUALSETTINGSFLAGS : '','',''
 _VISUALSETTINGSDYNTEXTFILECOUNT : 0
 (* @ALARMCONFIGFLAGS := '_ALARMCONFIGFLAGS: 0' *)
 (* @ALARMCONFIGGLOBALDB_STR := '_ALARMCONFIGGLOBALDB_STRINGS: $'$',$'$',$'$',$'$'' *)
 (* @ALARMCONFIGGLOBALDB_NUM := '_ALARMCONFIGGLOBALDB_NUMBERS: 0,0' *)
 _END_ALARMCONFIG
 LIBRARY
 Standard.lib 2.12.10 14:48:34
 (* @LIBRARYSYMFILEINFO := '0' *)
 NumOfPOUs: 26
 ASCIIBYTE_TO_STRING: 2048
 CONCAT: 0
 CTD: 0
 CTU: 0
 CTUD: 0
 DELETE: 0
 F_TRIG: 0
 FIND: 0
 INSERT: 0
 LEFT: 0
 LEN: 0
 MID: 0
 R_TRIG: 0
 REAL_STATE: 2048
 REPLACE: 0
 RIGHT: 0
 RS: 0
 RTC: 0
 SEMA: 0
 SR: 0
 STANDARD_VERSION: 2048
 STRING_COMPARE: 2048
 STRING_TO_ASCIIBYTE: 2048
 TOF: 0
 TON: 0
 TP: 0
 NumOfGVLs: 1
 'Global Variables 0': 0
 END_LIBRARY
 LIBRARY
 SYSLIBCALLBACK.LIB 2.12.10 14:48:32
 (* @LIBRARYSYMFILEINFO := '0' *)
 NumOfPOUs: 2
 SysCallbackRegister: 0
 SysCallbackUnregister: 0
 NumOfGVLs: 2
 Globale_Variablen: 0
 Version: 0
 END_LIBRARY
 PLC_CONFIGURATION
 _GLOBAL
 _VERSION: 3
 _AUTOADR: 0
 _CHECKADR: 0
 _SAVECONFIGFILESINPROJECT: 0
 _END_GLOBAL
 _MODULE: '3S'
 _SECTION_NAME: 'Root'
 _INDEX_IN_PARENT: '-1'
 _MODULE_NAME: 'Hardware configuration'
 _NODE_ID: -1
 _IECIN: %IB0
 _IECOUT: %QB0
 _IECDIAG: %MB0
 _DOWNLOAD: 1
 _EXCLUDEFROMAUTOADR: 0
 _COMMENT: ''
 _MODULE: '3S'
 _SECTION_NAME: 'K_Bus'
 _INDEX_IN_PARENT: '1'
 _MODULE_NAME: 'K-Bus'
 _NODE_ID: 0
 _IECIN: %IB0
 _IECOUT: %QB0
 _IECDIAG: %MB0
 _DOWNLOAD: 1
 _EXCLUDEFROMAUTOADR: 0
 _COMMENT: ''
 _END_MODULE
 _MODULE: '3S'
 _SECTION_NAME: 'FB_VARS'
 _INDEX_IN_PARENT: '2'
 _MODULE_NAME: 'Fieldbus variables'
 _NODE_ID: 1
 _IECIN: %IB0
 _IECOUT: %QB0
 _IECDIAG: %MB0
 _DOWNLOAD: 1
 _EXCLUDEFROMAUTOADR: 0
 _COMMENT: ''
 _END_MODULE
 _END_MODULE
 PLC_END
 RESOURCE
 {event_task : 'start','Called when program starts','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,1,11986}
 {event_task : 'stop','Called when program stops','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,2,11986}
 {event_task : 'before_reset','Called before reset takes place','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,3,11986}
 {event_task : 'after_reset','Called after reset took place','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,4,11986}
 {event_task : 'shutdown','Called before shutdown is performed (Firmware update over ethernet)','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,5,11986}
 {event_task : 'excpt_watchdog','Software watchdog of IEC-task expired','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,7,11986}
 {event_task : 'excpt_fieldbus','Fieldbus error','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,9,11986}
 {event_task : 'excpt_ioupdate','KBus error','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,10,11986}
 {event_task : 'excpt_dividebyzero','Division by zero. Only integer operations!','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,18,11986}
 {event_task : 'excpt_noncontinuable','Exception handler','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,20,11986}
 {event_task : 'after_reading_inputs','Called after reading of inputs','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,28,11986}
 {event_task : 'before_writing_outputs','Called before writing of outputs','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,29,11986}
 {event_task : 'debug_loop','Debug loop at breakpoint','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,31,11986}
 {event_task : 'online_change','Is called after CodeInit() at Online-Change','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,33,11986}
 {event_task : 'before_download','Is called before the Download starts','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,34,11986}
 {event_task : 'event_login','Is called before the login service is performed','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,501,11986}
 {event_task : 'eth_overload','Ethernet Overload','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,750,11986}
 {event_task : 'eth_network_ready','Is called directly after the Network and the PLC are initialised','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,751,11986}
 {event_task : 'blink_code','New blink code / Blink code cleared ( Call STATUS_GET_LAST_ERROR for details )','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,752,11986}
 {event_task : 'interrupt_0','Interrupt Real Time Clock (every second)','','FUNCTION systemevent: DWORD VAR_INPUT dwEvent: DWORD; dwFilter: DWORD; dwOwner: DWORD; END_VAR '}{event_task_info : 0,1000,11986}
 END_RESOURCE
 _WORKSPACE
 _GLOBALVISUALSETTINGS
 _VISUALSETTINGSFLAGS : 0,0,0,0
 _VISUALSETTINGSFLAGS : '','',''
 _VISUALSETTINGSDYNTEXTFILECOUNT : 0
 _VISUALBITMAPLISTCOUNT : 0
 _END_GLOBALVISUALSETTINGS
 _END_WORKSPACE
@@ -0,0 +1,15 @@
 rem Create Codesys EXP file
 rem Build cmd file
 set CODESYS="c:\Program Files (x86)\WAGO Software\CoDeSys V2.3\codesys.exe"
 set PROJECT=test
 del %PROJECT%.EXP
 echo file open %PROJECT%.pro >> codesys_cmd_file.cmd
 echo project export %PROJECT%.EXP >> codesys_cmd_file.cmd
 rem echo file saveas %PROJECT%.lib internallib >> codesys_cmd_file.cmd
 echo file close >> codesys_cmd_file.cmd
 echo file quit >> codesys_cmd_file.cmd
 %CODESYS% /noinfo /cmd codesys_cmd_file.cmd 
 rem Clean all when finished
 del codesys_cmd_file.cmd
@@ -1 +1,12 @@
-Endianing off <hr>0 --> Packet: 0000_0000_</br>1 --> Packet: 0000_3f80_</br>-2 --> Packet: 0000_c000_</br>0.333333333333 --> Packet: aaaa_3eaa_</br>25 --> Packet: 0000_41c8_</br>Endianing on <hr>0 --> Packet: 0000_0000_</br>1 --> Packet: 3f80_0000_</br>-2 --> Packet: c000_0000_</br>0.333333333333 --> Packet: 3eaa_aaaa_</br>25 --> Packet: 41c8_0000_</br>
+Endianing off <hr>
 0 --> Packet: 0000_0000_<br>
 1 --> Packet: 0000_3f80_<br>
 -2 --> Packet: 0000_c000_<br>
 0.333333333333 --> Packet: aaab_3eaa_<br>
 25 --> Packet: 0000_41c8_<br>
 Endianing on <hr>
 0 --> Packet: 0000_0000_<br>
 1 --> Packet: 3f80_0000_<br>
 -2 --> Packet: c000_0000_<br>
 0.333333333333 --> Packet: 3eaa_aaab_<br>
 25 --> Packet: 41c8_0000_<br>
@@ -7,7 +7,7 @@ $data = Array (
    "0" => 0, // -> 0000 0000
    "1" => 1, // -> 3f80 0000
    "2" => -2, // -> c000 0000
-    "3" => 1/3, // -> 3eaa aaab
+    "3" => 0.333333333333, //1/3 -> 3eaa aaab
    "4" => 25 // -> 41c8 0000
 );
@@ -25,26 +25,26 @@ function printPacket($packet){
    if($i % 2)
      $str .= "_";
  }
-  $str .= "</br>";
+  $str .= "<br>\n";
  return $str;
 }
-echo "Endianing off <hr>";
+echo "Endianing off <hr>\n";
 // Print mixed values
 for($i=0;$i<count($data);$i++) {
  echo $data[$i] . " --> ";
  $v = IecType::iecREAL($data[$i], 0);
  echo printPacket($v);
-  "<br>";
+  "<br>\n";
 }
-echo "Endianing on <hr>";
+echo "Endianing on <hr>\n";
 // Print mixed values
 for($i=0;$i<count($data);$i++) {
  echo $data[$i] . " --> ";
  $v = IecType::iecREAL($data[$i], 1);
  echo printPacket($v);
-  "<br>";
+  "<br>\n";
 }
 ?>
@@ -0,0 +1,11 @@
@echo off
 call ../config.bat
 for %%f in (test.*.php) do %php% -q "%%f" > "output/%%f.html"
 cd output
 for %%f in (*.html) do %diff% "%%f" ../ref/"%%f"
 cd ..
 pause
@echo on
@@ -0,0 +1,72 @@
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 1
    [4] => 0
    [5] => 1
    [6] => 0
    [7] => 255
    [8] => 0
    [9] => 255
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 1
    [4] => 255
    [5] => 255
    [6] => 127
    [7] => 255
    [8] => 128
    [9] => 0
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 1
    [6] => 0
    [7] => 0
    [8] => 255
    [9] => 255
    [10] => 255
    [11] => 255
    [12] => 255
    [13] => 255
    [14] => 127
    [15] => 255
    [16] => 0
    [17] => 0
    [18] => 128
    [19] => 0
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 0
    [6] => 63
    [7] => 128
    [8] => 0
    [9] => 0
    [10] => 192
    [11] => 0
    [12] => 170
    [13] => 171
    [14] => 62
    [15] => 170
    [16] => 0
    [17] => 0
    [18] => 65
    [19] => 200
 )
@@ -0,0 +1 @@
 writeMultipleRegister (FC26): DONE
@@ -0,0 +1 @@
 Caught exception: Unknown socket protocol, should be 'TCP' or 'UDP'
@@ -0,0 +1,72 @@
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 1
    [4] => 0
    [5] => 1
    [6] => 0
    [7] => 255
    [8] => 0
    [9] => 255
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 1
    [4] => 255
    [5] => 255
    [6] => 127
    [7] => 255
    [8] => 128
    [9] => 0
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 1
    [6] => 0
    [7] => 0
    [8] => 255
    [9] => 255
    [10] => 255
    [11] => 255
    [12] => 255
    [13] => 255
    [14] => 127
    [15] => 255
    [16] => 0
    [17] => 0
    [18] => 128
    [19] => 0
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 0
    [6] => 63
    [7] => 128
    [8] => 0
    [9] => 0
    [10] => 192
    [11] => 0
    [12] => 170
    [13] => 171
    [14] => 62
    [15] => 170
    [16] => 0
    [17] => 0
    [18] => 65
    [19] => 200
 )
@@ -0,0 +1 @@
 writeMultipleRegister (FC26): DONE
@@ -0,0 +1,44 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMaster.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMaster($test_host_ip, "TCP");
 // Data to be writen - BYTE
 $data = array(0, 1, 1, pow(2,8)-1, pow(2,8)-1);
 $dataTypes = array("BYTE", "BYTE", "BYTE", "BYTE", "BYTE");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 5);
 print_r($recData);
 // Data to be writen - INT
 $data = array(0, 1, -1, pow(2,15)-1, -pow(2,15));
 $dataTypes = array("INT", "INT", "INT", "INT", "INT");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 5);
 print_r($recData);
 // Data to be writen - DINT
 $data = array(0, 1, -1, pow(2,31)-1, -pow(2,31));
 $dataTypes = array("DINT", "DINT", "DINT", "DINT", "DINT");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 10);
 print_r($recData);
 // Data to be writen - REAL
 $data = array(0, 1, -2, 1/3, 25);
 $dataTypes = array("REAL", "REAL", "REAL", "REAL", "REAL");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 10);
 print_r($recData);
 ?>
@@ -0,0 +1,24 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMaster.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMaster($test_host_ip, "TCP");
 // Data to be writen
 $data = array(1000, 2000, 1.250, 1.250);
 $dataTypes = array("REAL", "REAL", "REAL", "REAL");
 // FC23
 $recData = $modbus->readWriteRegisters(0, 12288, 6, 12288, $data, $dataTypes);
 if(!$recData) {
  // Print error information if any
  echo "</br>Error:</br>" . $modbus->errstr . "</br>";
  //
  exit();
 }
 // Print status information
 echo "writeMultipleRegister (FC26): DONE";
 ?>
@@ -0,0 +1,22 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMaster.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMaster($test_host_ip, "Mismatch");
 // Data to be writen
 $data = array(1000, 2000, 1.250, 1.250);
 $dataTypes = array("REAL", "REAL", "REAL", "REAL");
 // FC23
 try {
    $recData = $modbus->readWriteRegisters(0, 12288, 6, 12288, $data, $dataTypes);
 } catch (Exception $e) {
    echo 'Caught exception: ',  $e->getMessage(), "\n";
    exit();
 }
 // Should through an Exception
 // Print status information
 echo "Should never reach this line!";
@@ -0,0 +1,44 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMaster.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMaster($test_host_ip, "UDP");
 // Data to be writen - BYTE
 $data = array(0, 1, 1, pow(2,8)-1, pow(2,8)-1);
 $dataTypes = array("BYTE", "BYTE", "BYTE", "BYTE", "BYTE");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 5);
 print_r($recData);
 // Data to be writen - INT
 $data = array(0, 1, -1, pow(2,15)-1, -pow(2,15));
 $dataTypes = array("INT", "INT", "INT", "INT", "INT");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 5);
 print_r($recData);
 // Data to be writen - DINT
 $data = array(0, 1, -1, pow(2,31)-1, -pow(2,31));
 $dataTypes = array("DINT", "DINT", "DINT", "DINT", "DINT");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 10);
 print_r($recData);
 // Data to be writen - REAL
 $data = array(0, 1, -2, 1/3, 25);
 $dataTypes = array("REAL", "REAL", "REAL", "REAL", "REAL");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 10);
 print_r($recData);
 ?>
@@ -0,0 +1,24 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMaster.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMaster($test_host_ip, "UDP");
 // Data to be writen
 $data = array(1000, 2000, 1.250, 1.250);
 $dataTypes = array("REAL", "REAL", "REAL", "REAL");
 // FC23
 $recData = $modbus->readWriteRegisters(0, 12288, 6, 12288, $data, $dataTypes);
 if(!$recData) {
  // Print error information if any
  echo "</br>Error:</br>" . $modbus->errstr . "</br>";
  //
  exit();
 }
 // Print status information
 echo "writeMultipleRegister (FC26): DONE";
 ?>
@@ -0,0 +1,11 @@
@echo off
 call ../config.bat
 for %%f in (test.*.php) do %php% -q "%%f" > "output/%%f.html"
 cd output
 for %%f in (*.html) do %diff% "%%f" ../ref/"%%f"
 cd ..
 pause
@echo on
@@ -0,0 +1,72 @@
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 1
    [4] => 0
    [5] => 1
    [6] => 0
    [7] => 255
    [8] => 0
    [9] => 255
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 1
    [4] => 255
    [5] => 255
    [6] => 127
    [7] => 255
    [8] => 128
    [9] => 0
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 1
    [6] => 0
    [7] => 0
    [8] => 255
    [9] => 255
    [10] => 255
    [11] => 255
    [12] => 255
    [13] => 255
    [14] => 127
    [15] => 255
    [16] => 0
    [17] => 0
    [18] => 128
    [19] => 0
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 0
    [6] => 63
    [7] => 128
    [8] => 0
    [9] => 0
    [10] => 192
    [11] => 0
    [12] => 170
    [13] => 171
    [14] => 62
    [15] => 170
    [16] => 0
    [17] => 0
    [18] => 65
    [19] => 200
 )
@@ -0,0 +1 @@
 writeMultipleRegister (FC26): DONE
@@ -0,0 +1,44 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterTcp.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMasterTcp($test_host_ip);
 // Data to be writen - BYTE
 $data = array(0, 1, 1, pow(2,8)-1, pow(2,8)-1);
 $dataTypes = array("BYTE", "BYTE", "BYTE", "BYTE", "BYTE");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 5);
 print_r($recData);
 // Data to be writen - INT
 $data = array(0, 1, -1, pow(2,15)-1, -pow(2,15));
 $dataTypes = array("INT", "INT", "INT", "INT", "INT");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 5);
 print_r($recData);
 // Data to be writen - DINT
 $data = array(0, 1, -1, pow(2,31)-1, -pow(2,31));
 $dataTypes = array("DINT", "DINT", "DINT", "DINT", "DINT");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 10);
 print_r($recData);
 // Data to be writen - REAL
 $data = array(0, 1, -2, 1/3, 25);
 $dataTypes = array("REAL", "REAL", "REAL", "REAL", "REAL");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 10);
 print_r($recData);
 ?>
@@ -0,0 +1,24 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterTcp.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMasterTcp($test_host_ip);
 // Data to be writen
 $data = array(1000, 2000, 1.250, 1.250);
 $dataTypes = array("REAL", "REAL", "REAL", "REAL");
 // FC23
 $recData = $modbus->readWriteRegisters(0, 12288, 6, 12288, $data, $dataTypes);
 if(!$recData) {
  // Print error information if any
  echo "</br>Error:</br>" . $modbus->errstr . "</br>";
  //
  exit();
 }
 // Print status information
 echo "writeMultipleRegister (FC26): DONE";
 ?>
@@ -0,0 +1,66 @@
 array(32) {
  [0]=>
  bool(true)
  [1]=>
  bool(false)
  [2]=>
  bool(true)
  [3]=>
  bool(true)
  [4]=>
  bool(false)
  [5]=>
  bool(true)
  [6]=>
  bool(true)
  [7]=>
  bool(true)
  [8]=>
  bool(true)
  [9]=>
  bool(true)
  [10]=>
  bool(true)
  [11]=>
  bool(true)
  [12]=>
  bool(false)
  [13]=>
  bool(false)
  [14]=>
  bool(false)
  [15]=>
  bool(false)
  [16]=>
  bool(false)
  [17]=>
  bool(false)
  [18]=>
  bool(false)
  [19]=>
  bool(false)
  [20]=>
  bool(true)
  [21]=>
  bool(true)
  [22]=>
  bool(true)
  [23]=>
  bool(true)
  [24]=>
  bool(true)
  [25]=>
  bool(true)
  [26]=>
  bool(true)
  [27]=>
  bool(true)
  [28]=>
  bool(true)
  [29]=>
  bool(true)
  [30]=>
  bool(true)
  [31]=>
  bool(true)
 }
@@ -62,7 +62,7 @@ Array
    [10] => 192
    [11] => 0
    [12] => 170
-    [13] => 170
+    [13] => 171
    [14] => 62
    [15] => 170
    [16] => 0
@@ -0,0 +1,72 @@
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 1
    [4] => 0
    [5] => 1
    [6] => 0
    [7] => 255
    [8] => 0
    [9] => 255
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 1
    [4] => 255
    [5] => 255
    [6] => 127
    [7] => 255
    [8] => 128
    [9] => 0
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 1
    [6] => 0
    [7] => 0
    [8] => 255
    [9] => 255
    [10] => 255
    [11] => 255
    [12] => 255
    [13] => 255
    [14] => 127
    [15] => 255
    [16] => 0
    [17] => 0
    [18] => 128
    [19] => 0
 )
 Array
 (
    [0] => 0
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 0
    [6] => 63
    [7] => 128
    [8] => 0
    [9] => 0
    [10] => 192
    [11] => 0
    [12] => 170
    [13] => 171
    [14] => 62
    [15] => 170
    [16] => 0
    [17] => 0
    [18] => 65
    [19] => 200
 )
@@ -0,0 +1,7 @@
 Test should pass when %IX0.0==FALSE and %IX0.1==TRUE
 array(2) {
  [0]=>
  bool(false)
  [1]=>
  bool(true)
 }
@@ -0,0 +1 @@
 writeMultipleRegister (FC26): DONE
@@ -0,0 +1,11 @@
 Test should pass when %IX0.0==FALSE and %IX0.1==TRUE
 array(4) {
  [0]=>
  int(0)
  [1]=>
  int(2)
  [2]=>
  int(0)
  [3]=>
  int(0)
 }
@@ -0,0 +1,5 @@
 Array
 (
    [0] => 0
    [1] => 5
 )
@@ -0,0 +1,5 @@
 Array
 (
    [0] => 207
    [1] => 199
 )
@@ -0,0 +1,22 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMasterUdp($test_host_ip);
 // Data to be writen - BOOL array
 $data = array(1, 0, TRUE, TRUE, 0, 1, TRUE, TRUE, 
              1, 1, TRUE, TRUE, 0, 0, FALSE, FALSE,
              0, 0, FALSE, FALSE, 1, 1, TRUE, TRUE,
              1, 1, TRUE, TRUE, 1, 1, TRUE, TRUE);
 // Write data - FC 15
 $modbus->writeMultipleCoils(0, 12288, $data);
 //echo $modbus->status;
 //$modbus->status = "";
 //echo "\n\n";
 // Read data - FC 1
 $recData = $modbus->readCoils(0, 12288, 32);
 //echo $modbus->status;
 //echo "\n\n";
 var_dump($recData);
@@ -3,7 +3,7 @@ require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
-$modbus = new ModbusMasterUdp($testip);
+$modbus = new ModbusMasterUdp($test_host_ip);
 // Data to be writen - BYTE
 $data = array(0, 1, 1, pow(2,8)-1, pow(2,8)-1);
@@ -0,0 +1,45 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMasterUdp($test_host_ip);
 $modbus->client = $test_bind_client_ip;
 // Data to be writen - BYTE
 $data = array(0, 1, 1, pow(2,8)-1, pow(2,8)-1);
 $dataTypes = array("BYTE", "BYTE", "BYTE", "BYTE", "BYTE");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 5);
 print_r($recData);
 // Data to be writen - INT
 $data = array(0, 1, -1, pow(2,15)-1, -pow(2,15));
 $dataTypes = array("INT", "INT", "INT", "INT", "INT");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 5);
 print_r($recData);
 // Data to be writen - DINT
 $data = array(0, 1, -1, pow(2,31)-1, -pow(2,31));
 $dataTypes = array("DINT", "DINT", "DINT", "DINT", "DINT");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 10);
 print_r($recData);
 // Data to be writen - REAL
 $data = array(0, 1, -2, 1/3, 25);
 $dataTypes = array("REAL", "REAL", "REAL", "REAL", "REAL");
 // Write data - FC 16
 $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 10);
 print_r($recData);
 ?>
@@ -0,0 +1,14 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMasterUdp($test_host_ip);
 // Test requirements
 echo "Test should pass when %IX0.0==FALSE and %IX0.1==TRUE\n";
 // Read input discretes - FC 2
 $recData = $modbus->readInputDiscretes(0, 0, 2);
 var_dump($recData);
@@ -3,7 +3,7 @@ require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
-$modbus = new ModbusMasterUdp($testip);
+$modbus = new ModbusMasterUdp($test_host_ip);
 // Data to be writen
 $data = array(1000, 2000, 1.250, 1.250);
@@ -0,0 +1,25 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMasterUdp($test_host_ip);
 $modbus->client = $test_bind_client_ip;
 // Data to be writen
 $data = array(1000, 2000, 1.250, 1.250);
 $dataTypes = array("REAL", "REAL", "REAL", "REAL");
 // FC23
 $recData = $modbus->readWriteRegisters(0, 12288, 6, 12288, $data, $dataTypes);
 if(!$recData) {
  // Print error information if any
  echo "</br>Error:</br>" . $modbus->errstr . "</br>";
  //
  exit();
 }
 // Print status information
 echo "writeMultipleRegister (FC26): DONE";
 ?>
@@ -0,0 +1,14 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMasterUdp($test_host_ip);
 // Test requirements
 echo "Test should pass when %IX0.0==FALSE and %IX0.1==TRUE\n";
 // Read input discretes - FC 4
 $recData = $modbus->readMultipleInputRegisters(0, 0, 2);
 var_dump($recData);
@@ -0,0 +1,23 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMasterUdp($test_host_ip);
 // Data to be writen - TRUE, FALSE
 $data_true = array(TRUE);
 $data_false = array(FALSE);
 // Reset target WORD
 $modbus->writeSingleRegister(0, 12288, array(0), array('WORD'));
 // Write single coil - FC5
 $modbus->writeSingleCoil(0, 12288, $data_true);
 $modbus->writeSingleCoil(0, 12289, $data_false);
 $modbus->writeSingleCoil(0, 12290, $data_true);
 $modbus->writeSingleCoil(0, 12291, $data_false);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 1);
 print_r($recData);
@@ -0,0 +1,15 @@
 <?php
 require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
 require_once dirname(__FILE__) . '/../config.php';
 // Create Modbus object
 $modbus = new ModbusMasterUdp($test_host_ip);
 // Data to be writen - INT
 $data = array(-12345);
 $dataTypes = array("INT");
 // Write data - FC6
 $modbus->writeSingleRegister(0, 12288, $data, $dataTypes);
 // Read data - FC3
 $recData = $modbus->readMultipleRegisters(0, 12288, 1);
 print_r($recData);
@@ -0,0 +1,3 @@
 Probably broken and dubious.
 Left from the original repo.
@@ -1,4 +1,4 @@
-set php=c:\Program_Files\xampplite\php\php.exe
+set php=c:\Program_Files\xampp\php\php.exe
 rem set php=C:\PHP\versions\php-5.2.6-Win32\php.exe -d auto_prepend_file=C:\PHP\locale.php
 set diff="diff.exe"
 rem set testUri=http://localHost/nette/_trunk/tests
@@ -1,3 +1,3 @@
 <?php
-  $testip = "192.192.15.51";  
+  $test_host_ip = "192.192.1.10";  
-?>
+  $test_bind_client_ip = "192.192.1.100";
@@ -1,121 +0,0 @@
 <refentry id="{@id}">
 <refnamediv>
  <refname>Phpmodbus user's guide</refname>
  <refpurpose>Phpmodbus How-to</refpurpose>
 </refnamediv>
 <refsynopsisdiv>
  <author>
   Jan Krakora
   <authorblurb>
    {@link mailto:jak.krakora@wago.com email}
   </authorblurb>
  </author>
 </refsynopsisdiv>
 {@toc}
 <refsect1 id="{@id intro}">
  <title>Introduction</title>
  <para>
   Phpmodbus is a PHP library for the Modbus protocol. The library implements
   Modbus UDP master class with subset of the most used Modbus commands.
  </para>
  <para>
   The library implements:
   <itemizedlist>
     <listitem><para>FC  3: read multiple registers</para></listitem>
     <listitem><para>FC 16: write multiple registers</para></listitem>
     <listitem><para>FC 23: read write registers</para></listitem>
    </itemizedlist>
  </para>
  <para>
   For more about Modbus protocol see [{@link http://www.modbus.org}] or
   [{@link http://en.wikipedia.org/wiki/Modbus Wiki}]
  </para>
  <note>
   Developed with support of <graphic fileref="wago_logo.png"/> {@link http://www.wago.com}.
  </note>
 </refsect1>
 <refsect1 id="{@id intro}">
  <title>Installation</title>
  <para>
   At the first, it is supposed an PHP solution has been already installed on
   your server (LAMP, WAMP, MSS+CGI etc.).
  </para>
  <para>
   Copy the Phpmodbus library to your PHP project folder.
  </para>
  <para>
   Create a PHP script and assign the library using
     <programlisting role="ini">
      <![CDATA[ require_once dirname(__FILE__) . '/Phpmodbus/ModbusMasterUdp.php'; ]]>
     </programlisting>
  </para>
  <para>
    To create the Modbus master object, that will communicate with a Modbus slave
    at IP address 192.168.1.1, write
    <programlisting role="ini">
      <![CDATA[ $modbus = new ModbusMasterUdp("192.168.1.1"); ]]>
     </programlisting>
  </para>
  <para>
    To read 5 words (10 bytes) located at the memory beginning at address = 12288 of
    the devide with Modbus ID=0 use
    <programlisting role="ini">
      <![CDATA[ $recData = $modbus->readMultipleRegisters(0, 12288, 5); ]]>
     </programlisting>
  </para>
  <para>
  For other examples see sections bellow.
  </para>
 </refsect1>
 <refsect1 id="{@id examples}">
  <title>Examples</title>
  <para>
    This section presents library features and examples
  </para>
  <refsect2 id="{@id example_fc3}">
    <title>FC3 - read mutliple registers</title>
    <para>
      FC3 functionality example
    </para>
    <para>
    {@example example_fc3.php}
    </para>
  </refsect2>
  <refsect2 id="{@id example_fc16}">
    <title>FC16 - write mutliple registers</title>
    <para>
      FC16 functionality example
    </para>
    <para>
    {@example example_fc16.php}
    </para>
  </refsect2>
  <refsect2 id="{@id example_fc23}">
    <title>FC23 - read write registers</title>
    <para>
      FC23 functionality example
    </para>
    <para>
    {@example example_fc23.php}
    </para>
  </refsect2>
  <refsect2 id="{@id wago_example}">
    <title>Dump of M-memory from WAGO 750-84x series coupler.</title>
    <para>
      Dump of M-memory from WAGO 750-84x series coupler.
    </para>
    <para>
    {@example example_750841_Mmemory.php}
    </para>
  </refsect2>
  <refsect2 id="{@id datatype}">
    <title>Data conversion to PHP types.</title>
    <para>
      Conversion of the data bytes, received from Modbus, to a PHP type.
    </para>
    <para>
    {@example example_datatype.php}
    </para>
  </refsect2>
 </refsect1> 
 </refentry>
Author	SHA1	Message	Date
MightyPork	fd2ae72b79	use timeout in socket_recv fail loop	2017-09-02 14:35:28 +02:00
MightyPork	4256b6cef7	fixed the examples	2016-11-20 11:29:09 +01:00
MightyPork	61e7a690eb	Minor cleanup, removed duplicate timeout vars & replaced with float [sec], added socket Tout setter	2016-11-18 16:06:15 +01:00
toimtoimtoim	7365700b72	cleanup	2016-11-05 18:00:41 +02:00
toimtoimtoim	cff8493205	refactor timeout_usec to millisecond precision and add setter for ms.	2016-11-05 17:57:19 +02:00
toimtoimtoim	e10bb250d8	Use microsecond precision instead of second for timeout when reading from sockets. Expose variables to configure socket read and write timeouts in sec and usec (microseconds) precision	2016-11-04 22:02:04 +02:00
MightyPork	c18696a718	added myself to composer json	2016-03-11 23:11:21 +01:00
MightyPork	dd5a892fb6	Cleaned up the code, fixed broken phpdoc tags, formatting	2016-03-11 23:08:00 +01:00
MightyPork	7d058ee526	changed name for packagist because it doesnt like uppercase	2016-03-11 22:33:11 +01:00
MightyPork	0ac0018444	foo	2016-03-11 22:30:00 +01:00
MightyPork	5300b2a867	added a namespace	2016-03-11 22:27:10 +01:00
John S Long	c676c06e2e	Merge pull request #1 from FabrizioC/master Added FC 22 Mask Write Register support	2014-12-11 14:38:09 -06:00
FabrizioC	697daedba3	Update ModbusMaster.php	2014-11-21 10:38:17 +01:00
FabrizioC	cd52263b8e	Added FC22 Mask Write Register example	2014-11-21 10:31:45 +01:00
FabrizioC	a2bde03574	Added FC 22 Mask Write Register function	2014-11-21 10:08:44 +01:00
FabrizioC	24d16bc1aa	Added FC 22 Mask Write Register function	2014-11-21 10:07:38 +01:00
John Long	bb0cdd467a	0.8 release	2013-11-29 22:27:16 -06:00
John Long	9ef8e72f3e	Add syntax declaration to code block in README.md	2013-06-14 09:03:03 -04:00
John Long	ad507ed46c	Create README.md	2013-06-14 08:01:51 -05:00
John Long	5bb5dfe654	Added tag 0.7 for changeset 5885b1a0d0dc	2013-06-14 07:43:52 -05:00
John Long	83d9baa9f6	0.7 release	2013-06-14 07:43:45 -05:00
John Long	753bff38ec	Added tag 0.6 for changeset 079f8ac1f49f	2013-06-14 07:43:03 -05:00
John Long	5f069276eb	0.6 release	2013-06-14 07:43:00 -05:00
John Long	7f4c4f2af1	Added tag 0.5 for changeset e1262f028e18	2013-06-14 07:42:20 -05:00
John Long	c5c65f8088	0.5 Release --HG-- rename : tests/ModbusMasterUdp/output/test.fc16fc3.php.html => tests/ModbusMaster/ref/test.tcp.fc16fc3.php.html rename : tests/ModbusMasterUdp/output/test.fc26.php.html => tests/ModbusMaster/ref/test.tcp.fc26.php.html rename : tests/ModbusMasterUdp/output/test.fc16fc3.php.html => tests/ModbusMaster/ref/test.udp.fc16fc3.php.html rename : tests/ModbusMasterUdp/output/test.fc26.php.html => tests/ModbusMaster/ref/test.udp.fc26.php.html rename : tests/ModbusMasterUdp/output/test.fc16fc3.php.html => tests/ModbusMasterTcp/ref/test.fc16fc3.php.html rename : tests/ModbusMasterUdp/output/test.fc26.php.html => tests/ModbusMasterTcp/ref/test.fc26.php.html	2013-06-14 07:42:17 -05:00
John Long	6c999a7450	Added tag 0.4.1 for changeset 1e09b0da7d8c	2013-06-14 07:40:52 -05:00
John Long	82c6fcf1d1	0.4.1	2013-06-14 07:40:48 -05:00
John Long	94772fcd7c	Added tag 0.4 for changeset bdf8b3f414c4	2013-06-14 07:39:18 -05:00
John Long	71f36c3063	0.4 Release	2013-06-14 07:39:15 -05:00
John Long	89b18aea02	Added tag 0.3 for changeset a7f90c18859d	2013-06-14 07:38:17 -05:00
		`@@ -1 +0,0 @@`
			`a88b5a87fb4cd49f16ce72062cce19d55f1fbf98 0.2`
		`@@ -0,0 +1,3 @@`
							`Those examples have not been updated to use namespaces.`

							`They may not work. Just for reference.`
		`@@ -0,0 +1 @@`
							`Caught exception: Unknown socket protocol, should be 'TCP' or 'UDP'`
		`@@ -0,0 +1,3 @@`
							`Probably broken and dubious.`

							`Left from the original repo.`