0.4 Release

.hgtags

@@ -0,0 +1,2 @@
+a88b5a87fb4cd49f16ce72062cce19d55f1fbf98 0.2
+a7f90c18859d31922bdd8c61299e2790f5e2eb1a 0.3

Phpmodbus/IecType.php

@@ -1,12 +1,12 @@
 <?php
 /**
- * Phpmodbus Copyright (c) 2004, 2009 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
+ * 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, 2009 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
+ * @copyright Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
  * @license PhpModbus license
  * @category Phpmodbus
  * @package Phpmodbus
@@ -20,7 +20,7 @@
  * data types to a IEC data type.
  *
  * @author Jan Krakora
- * @copyright  Copyright (c) 2004, 2009 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)      
+ * @copyright  Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
  * @package Phpmodbus
  */
 class IecType {
@@ -34,7 +34,7 @@ class IecType {
      * @return value IEC BYTE data type
      *
      */
-  function iecBYTE($value){
+    function iecBYTE($value) {
         return chr($value & 0xFF);
     }
 
@@ -47,7 +47,7 @@ class IecType {
      * @return value IEC-1131 INT data type
      *
      */
-  function iecINT($value){
+    function iecINT($value) {
         return self::iecBYTE(($value >> 8) & 0x00FF) .
                 self::iecBYTE(($value & 0x00FF));
     }
@@ -62,7 +62,7 @@ class IecType {
      * @return value IEC-1131 INT data type
      *
      */
-  function iecDINT($value, $endianness = 0){
+    function iecDINT($value, $endianness = 0) {
         // result with right endianness
         return self::endianness($value, $endianness);
     }
@@ -76,7 +76,7 @@ class IecType {
      * @param value endianness defines endian codding (little endian == 0, big endian == 1)
      * @return value IEC-1131 REAL data type
      */
-  function iecREAL($value, $endianness = 0){
+    function iecREAL($value, $endianness = 0) {
         // iecREAL representation
         $real = self::float2iecReal($value);
         // result with right endianness
@@ -89,63 +89,18 @@ class IecType {
      * 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]*
+     * [{@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($value){
+    private function float2iecReal($value) {
-    $bias = 128;
+        // get float binary string
-  	$cnst = 281;		// 1 (carry bit) + 127 + 1 + 126 + 24 + 2 (round bits)
+        $float = pack("f", $value);
-  	$two_power_x = array(1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 
+        // set 32-bit unsigned integer of the float
-      4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 
+        $w = unpack("L", $float);
-      2097152, 4194304);    
+        return $w[1];
-    //convert and seperate input to integer and decimal parts
-    $val = abs($value);
-    $intpart = floor($val);
-    $decpart = $val - $intpart;  
-    //convert integer part
-  	for ($i=0;$i<$cnst;$i++) $real_significand_bin[$i] = 0;
-    $i = $bias;
-    while ((($intpart / 2) != 0) && ($i >= 0))
-    {
-      $real_significand_bin[$i] = $intpart % 2;
-      if (($intpart % 2) == 0) $intpart = $intpart / 2;
-        else $intpart = $intpart / 2 - 0.5;
-      $i -= 1;
-    }  
-    //convert decimal part
-    $i = $bias+1;
-    while (($decpart > 0) && ($i < $cnst))
-    {
-      $decpart *= 2;
-      if ($decpart >= 1) {
-        $real_significand_bin[$i] = 1;
-        $decpart --;
-        $i++;
-      }
-      else 
-      {
-        $real_significand_bin[i] = 0;
-        $i++;
-      }
-    }  
-    //obtain exponent value
-    $i = 0;  
-    //find most significant bit of significand
-    while (($i < $cnst) && ($real_significand_bin[$i] != 1)) $i++;
-    //
-  	$index_exp = $i;
-    $real_exponent = 128 - $index_exp;
-  	if ($real_exponent < -126) return 0;
-  	if (($real_exponent > 127)&&($real_float>0)) return 0x7F7FFFFF;
-  	if (($real_exponent > 127)&&($real_float<0)) return 0xFF7FFFFF;
-  	for ($i=0; $i<23; $i++)
-  		$real_significand = $real_significand + $real_significand_bin[$index_exp+1+$i] * $two_power_x[22-$i];
-  	// return
-  	if ($value<0) $w = 0x80000000 + ($real_significand & 0x7FFFFF) + ((($real_exponent+127)<<23) & 0x7F800000);
-  	else $w = ($real_significand & 0x7FFFFF) + ((($real_exponent+127)<<23) & 0x7F800000);
-  	return $w;
     }
 
     /**
@@ -158,7 +113,7 @@ class IecType {
      * @param bool $endianness
      * @return int
      */
-  private function endianness($value, $endianness = 0){
+    private function endianness($value, $endianness = 0) {
         if ($endianness == 0)
             return
                     self::iecBYTE(($value >> 8) & 0x000000FF) .

Phpmodbus/ModbusMasterUdp.php

@@ -1,12 +1,12 @@
 <?php
 /**
- * Phpmodbus Copyright (c) 2004, 2009 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
+ * 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, 2009 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
+ * @copyright  Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
  * @license PhpModbus license 
  * @category Phpmodbus
  * @tutorial Phpmodbus.pkg 
@@ -29,7 +29,7 @@ require_once dirname(__FILE__) . '/PhpType.php';
  *   - FC 23: read write registers
  *   
  * @author Jan Krakora
- * @copyright  Copyright (c) 2004, 2009 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)  
+ * @copyright  Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
  * @package Phpmodbus  
  *
  */
@@ -37,7 +37,8 @@ class ModbusMasterUdp {
   var $sock;
   var $port = "502";
   var $host = "192.168.1.1";
-  var $errstr;
+  var $client = "";
+  var $client_port = "502";
   var $status;
   var $timeout_sec = 5; // 5 sec
   var $endianess = 0; // defines endian codding (little endian == 0, big endian == 1) 
@@ -53,6 +54,15 @@ class ModbusMasterUdp {
     $this->host = $host;
   }
 
+  /**
+   * __toString
+   *
+   * Magic method
+   */
+  function  __toString() {
+      return "<pre>" . $this->status . "</pre>";
+  }
+
   /**
    * connect
    *
@@ -63,14 +73,23 @@ class ModbusMasterUdp {
   private function connect(){
     // UDP socket
     $this->sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
+    // Bind the client socket to a specific local port
+    if (strlen($this->client)>0){
+        $result = socket_bind($this->sock, $this->client, $this->client_port);
+        if ($result === false) {
+            throw new Exception("socket_bind() failed.</br>Reason: ($result)".
+                socket_strerror(socket_last_error($this->sock)));
+        } else {
+            $this->status .= "Bound\n";
+        }
+    }
     // connect
     $result = @socket_connect($this->sock, $this->host, $this->port);
     if ($result === false) {
-        $this->errstr .= "socket_connect() failed.</br>Reason: ($result) " . 
+        throw new Exception("socket_connect() failed.</br>Reason: ($result)".
-            socket_strerror(socket_last_error($this->sock));
+            socket_strerror(socket_last_error($this->sock)));
-        return false;
     } else {
-        $this->status .= "Connected</br>";
+        $this->status .= "Connected\n";
         return true;        
     }    
   }
@@ -82,7 +101,7 @@ class ModbusMasterUdp {
    */
   private function disconnect(){    
     socket_close($this->sock);
-    $this->status .= "Disconnected</br>";
+    $this->status .= "Disconnected\n";
   }
 
   /**
@@ -94,7 +113,7 @@ class ModbusMasterUdp {
    */
   private function send($packet){
     socket_write($this->sock, $packet, strlen($packet));  
-    $this->status .= "Send</br>";  
+    $this->status .= "Send\n";
   }
 
   /**
@@ -116,19 +135,18 @@ class ModbusMasterUdp {
             $exceptsocks,
             0, 
             300000) !== FALSE) {
-            $this->status .= "Wait received data</br>";            
+            $this->status .= "Wait data ... \n";
         if (in_array($this->sock, $readsocks)) {
             while (@socket_recv($this->sock, $rec, 2000, 0)) {
-                $this->status .= "Received</br>";
+                $this->status .= "Data received\n";
                 return $rec;
             }
             $lastAccess = time();
         } else {             
             if (time()-$lastAccess >= $this->timeout_sec) {
-                $this->errstr .= "Watchdog time expired [ " . 
+                throw new Exception( "Watchdog time expired [ " .
                   $this->timeout_sec . " sec]!!! Connection to " . 
-                  $this->host . " is not established.";
+                  $this->host . " is not established.");
-                return false;
             }
         }
         $readsocks[] = $this->sock;
@@ -145,16 +163,128 @@ class ModbusMasterUdp {
    */
   private function responseCode($packet){    
     if(($packet[7] & 0x80) > 0) {
-      $this->errstr .= "Modbus response error code:" . ord($packet[8]);
+      throw new Exception("Modbus response error code:" . ord($packet[8]));
-      return false;
+    } else {
-    }
+      $this->status .= "Modbus response error code: NOERROR\n";
-    else
-    {      
-      $this->status .= "Modbus response error code: NOERROR</br>";
       return true;
     }    
   }
   
+  /**
+   * readCoils
+   * 
+   * Modbus function FC 1(0x01) - Read Coils
+   * 
+   * Reads {@link $quantity} of Coils (boolean) from reference 
+   * {@link $referenceRead} of a memory of a Modbus device given by 
+   * {@link $unitId}.
+   * 
+   * @param type $unitId
+   * @param type $reference
+   * @param type $quantity 
+   */
+  function readCoils($unitId, $reference, $quantity){
+    $this->status .= "readCoils: START\n";
+    // connect
+    $this->connect();
+    // send FC 3    
+    $packet = $this->readCoilsPacketBuilder($unitId, $reference, $quantity);
+    $this->status .= $this->printPacket($packet);    
+    $this->send($packet);
+    // receive response
+    $rpacket = $this->rec();
+    $this->status .= $this->printPacket($rpacket);    
+    // parse packet    
+    $receivedData = $this->readCoilsParser($rpacket, $quantity);
+    // disconnect
+    $this->disconnect();
+    $this->status .= "readCoils: DONE\n";
+    // return
+    return $receivedData;
+  }
+  
+  /**
+   * fc1
+   * 
+   * Alias to {@link readMultipleCoils} method
+   * 
+   * @param type $unitId
+   * @param type $reference
+   * @param type $quantity
+   * @return type 
+   */
+  function fc1($unitId, $reference, $quantity){
+    return $this->readCoils($unitId, $reference, $quantity);
+  }
+  
+  /**
+   * readCoilsPacketBuilder
+   * 
+   * FC1 packet builder - read coils
+   * 
+   * @param type $unitId
+   * @param type $reference
+   * @param type $quantity
+   * @return type 
+   */
+  private function readCoilsPacketBuilder($unitId, $reference, $quantity){
+    $dataLen = 0;
+    // build data section
+    $buffer1 = "";
+    // build body
+    $buffer2 = "";
+    $buffer2 .= iecType::iecBYTE(1);              // FC 1 = 1(0x01)
+    // 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;
+  }
+  
+  /**
+   * readCoilsParser
+   * 
+   * FC 1 response parser
+   * 
+   * @param type $packet
+   * @param type $quantity
+   * @return type 
+   */
+  private function readCoilsParser($packet, $quantity){    
+    $data = array();
+    // check Response code
+    $this->responseCode($packet);
+    // get data from stream
+    for($i=0;$i<ord($packet[8]);$i++){
+      $data[$i] = ord($packet[9+$i]);
+    }    
+    // get bool values to array
+    $data_bolean_array = array();
+    $di = 0;
+    foreach($data as $value){
+      for($i=0;$i<8;$i++){
+        if($di > $quantity) continue;
+        // get boolean value 
+        $v = ($value >> $i) & 0x01;
+        // build boolean array
+        if($v == 0){
+          $data_bolean_array[] = FALSE;
+        } else {
+          $data_bolean_array[] = TRUE;
+        }
+        $di++;
+      }
+    }
+    return $data_bolean_array;
+  }
+  
   /**
    * readMultipleRegisters
    *
@@ -171,27 +301,21 @@ class ModbusMasterUdp {
    * @return false|Array Success flag or array of received data.
    */
   function readMultipleRegisters($unitId, $reference, $quantity){
-    $this->errstr = "";
+    $this->status .= "readMultipleRegisters: START\n";
-    $this->status = "readMultipleRegisters: START</br>";
     // connect
-    if(!$this->connect())
+    $this->connect();
-      return false;
     // send FC 3    
     $packet = $this->readMultipleRegistersPacketBuilder($unitId, $reference, $quantity);
     $this->status .= $this->printPacket($packet);    
     $this->send($packet);
     // receive response
     $rpacket = $this->rec();
-    if(!$rpacket)
-      return false;
     $this->status .= $this->printPacket($rpacket);    
     // parse packet    
     $receivedData = $this->readMultipleRegistersParser($rpacket);
-    if(!$receivedData)
-      return false;
     // disconnect
     $this->disconnect();
-    $this->status .= "readMultipleRegisters: DONE</br>";    
+    $this->status .= "readMultipleRegisters: DONE\n";
     // return
     return $receivedData;
   }
@@ -222,6 +346,8 @@ class ModbusMasterUdp {
    */
   private function readMultipleRegistersPacketBuilder($unitId, $reference, $quantity){
     $dataLen = 0;
+    // build data section
+    $buffer1 = "";
     // build body
     $buffer2 = "";
     $buffer2 .= iecType::iecBYTE(3);             // FC 3 = 3(0x03)
@@ -249,9 +375,8 @@ class ModbusMasterUdp {
    */
   private function readMultipleRegistersParser($packet){    
     $data = array();
-    // if not exception
+    // check Response code
-    if(!$this->responseCode($packet))
+    $this->responseCode($packet);
-      return false;
     // get data
     for($i=0;$i<ord($packet[8]);$i++){
       $data[$i] = ord($packet[9+$i]);
@@ -259,6 +384,124 @@ class ModbusMasterUdp {
     return $data;
   }
   
+  /**
+   * writeMultipleCoils
+   * 
+   * Modbus function FC15(0x0F) - Write Multiple Coils
+   *
+   * This function writes {@link $data} array at {@link $reference} position of 
+   * memory of a Modbus device given by {@link $unitId}. 
+   * 
+   * @param type $unitId
+   * @param type $reference
+   * @param type $data
+   * @return type 
+   */
+  function writeMultipleCoils($unitId, $reference, $data){
+    $this->status .= "writeMultipleCoils: START\n";
+    // connect
+    $this->connect();
+    // send FC16    
+    $packet = $this->writeMultipleCoilsPacketBuilder($unitId, $reference, $data);
+    $this->status .= $this->printPacket($packet);    
+    $this->send($packet);
+    // receive response
+    $rpacket = $this->rec();
+    $this->status .= $this->printPacket($rpacket);    
+    // parse packet
+    $this->writeMultipleCoilsParser($rpacket);
+    // disconnect
+    $this->disconnect();
+    $this->status .= "writeMultipleCoils: DONE\n";
+    return true;
+  }
+  
+  /**
+   * fc15
+   *
+   * Alias to {@link writeMultipleCoils} method
+   *
+   * @param int $unitId
+   * @param int $reference
+   * @param array $data
+   * @return bool
+   */
+  function fc15($unitId, $reference, $data){    
+    return $this->writeMultipleCoils($unitId, $reference, $data);
+  }
+  
+  /**
+   * writeMultipleCoilsPacketBuilder
+   *
+   * Packet builder FC15 - Write multiple coils
+   *
+   * @param int $unitId
+   * @param int $reference
+   * @param array $data
+   * @return string
+   */
+  private function writeMultipleCoilsPacketBuilder($unitId, $reference, $data){
+    $dataLen = 0;
+    $endianness = 0;    
+    // build bool stream to the WORD array
+    $data_word_stream = array();
+    $data_word = 0;
+    $shift = 0;    
+    for($i=0;$i<count($data);$i++) {
+      if((($i % 8) == 0) && ($i > 0)) {
+        $data_word_stream[] = $data_word;
+        $shift = 0;
+        $data_word = 0;
+        $data_word |= (0x01 && $data[$i]) << $shift;
+        $shift++;
+      }
+      else {
+        $data_word |= (0x01 && $data[$i]) << $shift;
+        $shift++;
+      }
+    }
+    $data_word_stream[] = $data_word;
+    // show binary stream to status string
+    foreach($data_word_stream as $d){
+        $this->status .= sprintf("byte=b%08b\n", $d);
+    }    
+    // build data section
+    $buffer1 = "";
+    foreach($data_word_stream as $key=>$dataitem) {
+        $buffer1 .= iecType::iecBYTE($dataitem);   // register values x
+        $dataLen += 1;
+    }
+    // build body
+    $buffer2 = "";
+    $buffer2 .= iecType::iecBYTE(15);             // FC 15 = 15(0x0f)
+    $buffer2 .= iecType::iecINT($reference);      // refnumber = 12288      
+    $buffer2 .= iecType::iecINT(count($data));      // bit count      
+    $buffer2 .= iecType::iecBYTE((count($data)+7)/8);       // 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;
+  }
+  
+  /**
+   * writeMultipleCoilsParser
+   *
+   * FC15 response parser
+   *
+   * @param string $packet
+   * @return bool
+   */
+  private function writeMultipleCoilsParser($packet){
+    $this->responseCode($packet);
+    return true;
+  }
+  
   /**
    * writeMultipleRegister
    *
@@ -275,26 +518,21 @@ class ModbusMasterUdp {
    * @return bool Success flag
    */       
   function writeMultipleRegister($unitId, $reference, $data, $dataTypes){
-    $this->errstr = "";
+    $this->status .= "writeMultipleRegister: START\n";
-    $this->status = "writeMultipleRegister: START</br>";
     // connect
-    if(!$this->connect())
+    $this->connect();
-      return false;
     // send FC16    
     $packet = $this->writeMultipleRegisterPacketBuilder($unitId, $reference, $data, $dataTypes);
     $this->status .= $this->printPacket($packet);    
     $this->send($packet);
     // receive response
     $rpacket = $this->rec();
-    if(!$rpacket)
-      return false;
     $this->status .= $this->printPacket($rpacket);    
     // parse packet
-    if(!$this->writeMultipleRegisterParser($rpacket))
+    $this->writeMultipleRegisterParser($rpacket);
-      return false;    
     // disconnect
     $this->disconnect();
-    $this->status .= "writeMultipleRegister: DONE</br>";
+    $this->status .= "writeMultipleRegister: DONE\n";
     return true;
   }
 
@@ -329,6 +567,7 @@ class ModbusMasterUdp {
    */
   private function writeMultipleRegisterPacketBuilder($unitId, $reference, $data, $dataTypes){
     $dataLen = 0;
+    $endianness = 0;
     // build data section
     $buffer1 = "";
     foreach($data as $key=>$dataitem) {
@@ -337,11 +576,11 @@ class ModbusMasterUdp {
         $dataLen += 2;
       }
       elseif($dataTypes[$key]=="DINT"){
-        $buffer1 .= iecType::iecDINT($dataitem, $endianess);   // register values x
+        $buffer1 .= iecType::iecDINT($dataitem, $endianness);   // register values x
         $dataLen += 4;
       }
       elseif($dataTypes[$key]=="REAL") {
-        $buffer1 .= iecType::iecREAL($dataitem, $endianess);   // register values x        
+        $buffer1 .= iecType::iecREAL($dataitem, $endianness);   // register values x
         $dataLen += 4;
       }       
       else{
@@ -376,8 +615,7 @@ class ModbusMasterUdp {
    * @return bool
    */
   private function writeMultipleRegisterParser($packet){
-    if(!$this->responseCode($rpacket))
+    $this->responseCode($packet);
-      return false;
     return true;
   }
   
@@ -400,27 +638,21 @@ class ModbusMasterUdp {
    * @return false|Array Success flag or array of data.
    */
   function readWriteRegisters($unitId, $referenceRead, $quantity, $referenceWrite, $data, $dataTypes){
-    $this->errstr = "";
+    $this->status .= "readWriteRegisters: START\n";
-    $this->status = "readWriteRegisters: START</br>";
     // connect
-    if(!$this->connect())
+    $this->connect();
-      return false;
     // send FC23    
     $packet = $this->readWriteRegistersPacketBuilder($unitId, $referenceRead, $quantity, $referenceWrite, $data, $dataTypes);
     $this->status .= $this->printPacket($packet);    
     $this->send($packet);
     // receive response
     $rpacket = $this->rec();
-    if(!$rpacket)
-      return false;
     $this->status .= $this->printPacket($rpacket);
     // parse packet
     $receivedData = $this->readWriteRegistersParser($rpacket);
-    if(!$receivedData)
-      return false;
     // disconnect
     $this->disconnect();
-    $this->status .= "writeMultipleRegister: DONE</br>";    
+    $this->status .= "writeMultipleRegister: DONE\n";
     // return
     return $receivedData;
   }
@@ -458,6 +690,7 @@ class ModbusMasterUdp {
    */
   private function readWriteRegistersPacketBuilder($unitId, $referenceRead, $quantity, $referenceWrite, $data, $dataTypes){
     $dataLen = 0;
+    $endianness = 0;
     // build data section
     $buffer1 = "";
     foreach($data as $key => $dataitem) {
@@ -466,11 +699,11 @@ class ModbusMasterUdp {
         $dataLen += 2;
       }
       elseif($dataTypes[$key]=="DINT"){
-        $buffer1 .= iecType::iecDINT($dataitem, $endianess);   // register values x
+        $buffer1 .= iecType::iecDINT($dataitem, $endianness);   // register values x
         $dataLen += 4;
       }
       elseif($dataTypes[$key]=="REAL") {
-        $buffer1 .= iecType::iecREAL($dataitem, $endianess);   // register values x        
+        $buffer1 .= iecType::iecREAL($dataitem, $endianness);   // register values x
         $dataLen += 4;
       }       
       else{
@@ -538,7 +771,7 @@ class ModbusMasterUdp {
   /**
    * printPacket
    *
-   * Print whole packet in the hex form
+   * Print a packet in the hex form
    *
    * @param string $packet
    * @return string
@@ -549,7 +782,7 @@ class ModbusMasterUdp {
     for($i=0;$i<strlen($packet);$i++){
       $str .= $this->byte2hex(ord($packet[$i]));
     }
-    $str .= "</br>";
+    $str .= "\n";
     return $str;
   }
 }

Phpmodbus/PhpType.php

@@ -1,12 +1,12 @@
-<?
+<?php
 /**
- * Phpmodbus Copyright (c) 2004, 2009 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
+ * 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, 2009 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
+ * @copyright Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
  * @license PhpModbus license
  * @category Phpmodbus
  * @package Phpmodbus
@@ -21,7 +21,7 @@
  * (array of bytes) to the PHP data type, i.e. signed int, unsigned int and float.
  *
  * @author Jan Krakora
- * @copyright  Copyright (c) 2004, 2009 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)      
+ * @copyright  Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
  * @package Phpmodbus
  *
  */
@@ -37,7 +37,7 @@ class PhpType {
      * @param bool $endianness
      * @return float
      */
-  public static function bytes2float($values, $endianness = 0){
+    public static function bytes2float($values, $endianness = 0) {
         $data = array();
         $real = 0;
 
@@ -59,7 +59,7 @@ class PhpType {
      * @param bool $endianness
      * @return int
      */
-  public static function bytes2signedInt($values, $endianness = 0){
+    public static function bytes2signedInt($values, $endianness = 0) {
         $data = array();
         $int = 0;
         // Set the array to correct form
@@ -67,7 +67,7 @@ class PhpType {
         // 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 & $int) > 0)){
+        if ((count($values) == 2) && ((0x8000 & $int) > 0)) {
             $int = 0xFFFF8000 | $int;
         }
         // Convert the value
@@ -84,7 +84,7 @@ class PhpType {
      * @param bool $endianness
      * @return int|float
      */
-  public static function bytes2unsignedInt($values, $endianness = 0){
+    public static function bytes2unsignedInt($values, $endianness = 0) {
         $data = array();
         $int = 0;
         // Set the array to correct form
@@ -95,44 +95,65 @@ class PhpType {
         return self::dword2unsignedInt($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 $str;
+    }
+
     /**
      * real2float
      *
      * This function converts a value in IEC-1131 REAL single precision form to float.
      *
      * For more see [{@link http://en.wikipedia.org/wiki/Single_precision Single precision on Wiki}] or
-   * [{@link http://de.php.net/manual/en/function.base-convert.php PHP base_convert function commentary}, Todd Stokes @ Georgia Tech 21-Nov-2007]
+     * [{@link http://de.php.net/manual/en/function.base-convert.php PHP base_convert function commentary}, Todd Stokes @ Georgia Tech 21-Nov-2007] or
+     * [{@link http://www.php.net/manual/en/function.pack.php PHP pack/unpack functionality}]
      *
      * @param value value in IEC REAL data type to be converted
      * @return float float value
      */
-  private static function real2float($value){
+    private static function real2float($value) {
-    $two_pow_minus_x = array(
+        // get unsigned long
-      1, 0.5, 0.25, 0.125, 0.0625, 0.03125, 0.015625, 
+        $ulong = pack("L", $value);
-      0.0078125, 0.00390625, 0.001953125, 0.0009765625, 
+        // set float
-      0.00048828125, 0.000244140625, 0.0001220703125, 
+        $float = unpack("f", $ulong);
-      0.00006103515625,	0.000030517578125, 0.0000152587890625, 
+        
-      0.00000762939453125, 0.000003814697265625, 0.0000019073486328125, 
+        return $float[1];
-      0.00000095367431640625, 0.000000476837158203125,
-  		0.0000002384185791015625, 0.00000011920928955078125);
-    // get sign, mantisa, exponent
-  	$real_mantisa = $value & 0x7FFFFF | 0x800000; 
-  	$real_exponent = ($value>>23) & 0xFF;
-  	$real_sign = ($value>>31) & 0x01;
-  	$bin_exponent = $real_exponent - 127;
-  	// decode value
-  	if (( $bin_exponent >= -126) && ($bin_exponent <= 127)) {
-      // Mantissa decoding	
-  		for ($i=0; $i<24; $i++) {		  
-  		  if ($real_mantisa & 0x01)
-  			  $val += $two_pow_minus_x[23-$i];
-  			$real_mantisa = $real_mantisa >> 1;
-  		}
-      // Base
-  		$val = $val * pow(2,$bin_exponent);
-  		if (($real_sign == 1)) $val = -$val;
-  	}	
-  	return (float)$val;
     }
 
     /**
@@ -143,7 +164,7 @@ class PhpType {
      * @param int $value
      * @return int
      */
-  private static function dword2signedInt($value){
+    private static function dword2signedInt($value) {
         if ((0x80000000 & $value) != 0) {
             return -(0x7FFFFFFF & ~$value)-1;
         } else {
@@ -159,7 +180,7 @@ class PhpType {
      * @param int $value
      * @return int|float
      */
-  private static function dword2unsignedInt($value){
+    private static function dword2unsignedInt($value) {
         if ((0x80000000 & $value) != 0) {
             return ((float) (0x7FFFFFFF & $value)) + 2147483648;
         } else {
@@ -175,17 +196,26 @@ class PhpType {
      * @param int $data
      * @return int
      */
-  private static function checkData($data){
+    private static function checkData($data) {
         // Check the data
-    if (!is_array($data)) {
+        if (!is_array($data) ||
-        throw new Exception('The input data should be an array of bytes.');
+                count($data)<2 ||
+                count($data)>4 ||
+                count($data)==3) {
+            throw new Exception('The input data should be an array of 2 or 4 bytes.');
         }
-    // Check the values to be number - must be 
+        // Fill the rest of array by zeroes
-    if (!is_numeric($data[0]) || !is_numeric($data[1])) {
+        if (count($data) == 2) {
-        throw new Exception('Data are not numeric.'); 
+            $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($data[3])) {
+            throw new Exception('Data are not numeric or the array keys are not indexed by 0,1,2 and 3');
         }
-    if (!is_numeric($data[2])) $data[2] = 0;
-    if (!is_numeric($data[3])) $data[3] = 0;
 
         return $data;
     }
@@ -199,7 +229,7 @@ class PhpType {
      * @param bool $endianness
      * @return int
      */
-  private static function combineBytes($data, $endianness){
+    private static function combineBytes($data, $endianness) {
         $value = 0;
         // Combine bytes
         if ($endianness == 0)

examples/example_750841_Mmemory.php

@@ -1,17 +1,24 @@
 <?php
 
-require_once dirname(__FILE__) . './Phpmodbus/ModbusMasterUdp.php';
+require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
 
 // Create Modbus object
-$ip = "192.168.1.99";
+$ip = "192.192.15.51";
 $modbus = new ModbusMasterUdp($ip);
 
-// FC 3
+try {
-$moduleId = 0;
+    // FC 3
-$reference = 12288;
+    $moduleId = 0;
-$mw0address = 12288;
+    $reference = 12288;
-$quantity = 6;
+    $mw0address = 12288;
-$recData = $modbus->readMultipleRegisters($moduleId, $reference, $quantity);
+    $quantity = 6;
+    $recData = $modbus->readMultipleRegisters($moduleId, $reference, $quantity);
+}
+catch (Exception $e) {
+    echo $modbus;
+    echo $e;
+    exit;
+}
 
 ?>
 <html>
@@ -24,23 +31,14 @@ $recData = $modbus->readMultipleRegisters($moduleId, $reference, $quantity);
         <h1>Dump of M-memory from WAGO 750-84x series coupler.</h1>
         <ul>
             <li>PLC: 750-84x series</li>
-      <li>IP: <?=$ip?></li>
+            <li>IP: <?php echo $ip?></li>
-      <li>Modbus module ID: <?=$moduleId?></li>
+            <li>Modbus module ID: <?php echo $moduleId?></li>
-      <li>Modbus memory reference: <?=$reference?></li>
+            <li>Modbus memory reference: <?php echo $reference?></li>
-      <li>Modbus memory quantity: <?=$quantity?></li>
+            <li>Modbus memory quantity: <?php echo $quantity?></li>
         </ul>
 
         <h2>M-memory dump</h2>
 
-    <?php
-    if(!$recData) {
-          // Print error information if any
-          echo "</br>Error:</br>" . $modbus->errstr . "</br>";
-    } 
-    else 
-    {  
-    ?>
-    
         <table border="1px" width="400px">
             <tr>
                 <td>Modbus address</td>
@@ -48,25 +46,21 @@ $recData = $modbus->readMultipleRegisters($moduleId, $reference, $quantity);
                 <td>value</td>
             </tr>
             <?php
-        for($i=0;$i<count($recData);$i+=2){          
+            for($i=0;$i<count($recData);$i+=2) {
                 ?>
             <tr>
-        <td><?=$i+$reference?></td>
+                <td><?php echo $i+$reference?></td>
-        <td>MW<?=($i + $reference - $mw0address)/2?></td>
+                <td>MW<?php echo ($i + $reference - $mw0address)/2?></td>
-        <td><?=($recData[$i] << 8)+ $recData[$i+1]?></td>
+                <td><?php echo ($recData[$i] << 8)+ $recData[$i+1]?></td>
             </tr>
                 <?php
             }
             ?>
         </table>
 
-    <?php
-    }
-    ?>
-    
         <h2>Modbus class status</h2>
         <?php
-      echo $modbus->status;
+        echo $modbus;
         ?>
 
     </body>

examples/example_datatype.php

@@ -1,55 +1,61 @@
 <?php
 
-require_once dirname(__FILE__) . './Phpmodbus/ModbusMasterUdp.php';
+require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
 
 // Create Modbus object
-$modbus = new ModbusMasterUdp("192.168.1.99");
+$modbus = new ModbusMasterUdp("192.192.15.51");
 
-// FC 3
+try {
-// read 10 words (20 bytes) from device ID=0, address=12288
+    // FC 3
-$recData = $modbus->readMultipleRegisters(0, 12288, 10);
+    // read 10 words (20 bytes) from device ID=0, address=12288
-
+    $recData = $modbus->readMultipleRegisters(0, 12288, 10);
-if(!$recData) {
+}
+catch (Exception $e) {
     // Print error information if any
-  echo "</br>Error:</br>" . $modbus->errstr . "</br>";
+    echo $modbus;
+    echo $e;
     exit;
 }
 
 // Received data
-echo "<h1>Received Data</h1>";
+echo "<h1>Received Data</h1>\n";
 print_r($recData);
 
 // Conversion
-echo "<h2>32 bits types</h2>";
+echo "<h2>32 bits types</h2>\n";
 // Chunk the data array to set of 4 bytes
 $values = array_chunk($recData, 4);
 
 // Get float from REAL interpretation
-echo "<h3>REAL to Float</h3>";
+echo "<h3>REAL to Float</h3>\n";
 foreach($values as $bytes)
     echo PhpType::bytes2float($bytes) . "</br>";
 
 // Get integer from DINT interpretation
-echo "<h3>DINT to integer </h3>";
+echo "<h3>DINT to integer </h3>\n";
 foreach($values as $bytes)
     echo PhpType::bytes2signedInt($bytes) . "</br>";
 
 // Get integer of float from DINT interpretation
-echo "<h3>DWORD to integer (or float) </h3>";
+echo "<h3>DWORD to integer (or float) </h3>\n";
 foreach($values as $bytes)
     echo PhpType::bytes2unsignedInt($bytes) . "</br>";
 
-echo "<h2>16 bit types</h2>";
+echo "<h2>16 bit types</h2>\n";
 // Chunk the data array to set of 4 bytes
 $values = array_chunk($recData, 2);
 
 // Get signed integer from INT interpretation
-echo "<h3>INT to integer </h3>";
+echo "<h3>INT to integer </h3>\n";
 foreach($values as $bytes)
     echo PhpType::bytes2signedInt($bytes) . "</br>";
 
 // Get unsigned integer from WORD interpretation
-echo "<h3>WORD to integer </h3>";
+echo "<h3>WORD to integer </h3>\n";
 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>";
 ?>

examples/example_fc1.php

@@ -0,0 +1,25 @@
+<?php
+
+require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
+
+// Create Modbus object
+$modbus = new ModbusMasterUdp("192.192.15.51");
+
+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>";

examples/example_fc15.php

@@ -0,0 +1,26 @@
+<?php
+
+require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
+
+// Create Modbus object
+$modbus = new ModbusMasterUdp("192.192.15.51");
+
+// Data to be writen
+$data = array(TRUE, FALSE, TRUE, TRUE, FALSE, TRUE, TRUE, TRUE, 
+              TRUE, TRUE, TRUE, TRUE, FALSE, FALSE, FALSE, FALSE,
+              FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, TRUE, TRUE,
+              TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE);
+
+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;

examples/example_fc16.php

@@ -1,21 +1,26 @@
 <?php
 
-require_once dirname(__FILE__) . './Phpmodbus/ModbusMasterUdp.php';
+require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
 
 // Create Modbus object
-$modbus = new ModbusMasterUdp("192.168.1.99");
+$modbus = new ModbusMasterUdp("192.192.15.51");
 
 // 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");
 
-// FC16
+try {
-if(!$modbus->writeMultipleRegister(0, 12288, $data, $dataTypes)) {
+    // FC16
+    $modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
+}
+catch (Exception $e) {
     // Print error information if any
-  echo "</br>Error:</br>" . $modbus->errstr . "</br>";
+    echo $modbus;
+    echo $e;
+    exit;
 }
 
 // Print status information
-echo "</br>Status:</br>" . $modbus->status . "</br>";
+echo $modbus;
 
 ?>

examples/example_fc23.php

@@ -1,26 +1,31 @@
 <?php
 
-require_once dirname(__FILE__) . './Phpmodbus/ModbusMasterUdp.php';
+require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
 
 // Create Modbus object
-$modbus = new ModbusMasterUdp("192.168.1.99");
+$modbus = new ModbusMasterUdp("192.192.15.51");
 
 // 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");
 
-// FC23
+try {
-$recData = $modbus->readWriteRegisters(0, 12288, 6, 12288, $data, $dataTypes);
+    // FC23
-
+    $recData = $modbus->readWriteRegisters(0, 12288, 6, 12288, $data, $dataTypes);
-if(!$recData) {
+}
+catch (Exception $e) {
     // Print error information if any
-  echo "</br>Error:</br>" . $modbus->errstr . "</br>";
+    echo $modbus;
+    echo $e;
+    exit;
 }
 
 // Print status information
-echo "</br>Status:</br>" . $modbus->status . "</br>";
+echo "</br>Status:</br>" . $modbus;
 
 // Print read data
-echo "</br>Data:</br>"; print_r($recData); echo "</br>";
+echo "</br>Data:</br>";
+print_r($recData);
+echo "</br>";
 
 ?>

examples/example_fc3.php

@@ -1,21 +1,26 @@
 <?php
 
-require_once dirname(__FILE__) . './Phpmodbus/ModbusMasterUdp.php';
+require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
 
 // Create Modbus object
-$modbus = new ModbusMasterUdp("192.168.1.99");
+$modbus = new ModbusMasterUdp("192.192.15.51");
 
-// FC 3
+try {
-$recData = $modbus->readMultipleRegisters(0, 12288, 6);
+    // FC 3
-
+    $recData = $modbus->readMultipleRegisters(0, 12288, 6);
-if(!$recData) {
+}
+catch (Exception $e) {
     // Print error information if any
-  echo "</br>Error:</br>" . $modbus->errstr . "</br>";
+    echo $modbus;
+    echo $e;
+    exit;
 }
 
 // Print status information
-echo "</br>Status:</br>" . $modbus->status . "</br>";
+echo "</br>Status:</br>" . $modbus;
 
 // Print read data
-echo "</br>Data:</br>"; print_r($recData); echo "</br>";
+echo "</br>Data:</br>";
+print_r($recData); 
+echo "</br>";
 ?>

license.txt

@@ -1,7 +1,7 @@
 The Phpmodbus License, Version 1
 ============================
 
-Copyright (c) 2004, 2008 Jan Krakora, Wago (http://www.wago.com)
+Copyright (c) 2004, 2011 Jan Krakora, Wago (http://www.wago.com)
 All rights reserved.
 
 This license is a legal agreement between you and Jan Krakora, Wago (the "Author")

tests/IecType/ref/test.iecReal.php.html

@@ -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: 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>

tests/IecType/test.iecReal.php

@@ -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";
 }
  
 ?>

tests/ModbusMasterUdp/ref/test.fc16fc3bind.php.html

@@ -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
+)

tests/ModbusMasterUdp/ref/test.fc26bind.php.html

@@ -0,0 +1 @@
+writeMultipleRegister (FC26): DONE

tests/ModbusMasterUdp/test.fc15fc1.php

@@ -0,0 +1,22 @@
+<?php
+require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
+require_once dirname(__FILE__) . '/../config.php';
+
+// Create Modbus object
+$modbus = new ModbusMasterUdp($testip);
+
+// 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);

tests/ModbusMasterUdp/test.fc16fc3bind.php

@@ -0,0 +1,45 @@
+<?php
+require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
+require_once dirname(__FILE__) . '/../config.php';
+
+// Create Modbus object
+$modbus = new ModbusMasterUdp($testip);
+$modbus->client = "192.192.15.133";
+
+// Data to be writen - BYTE
+$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);
+
+?>

tests/ModbusMasterUdp/test.fc26bind.php

@@ -0,0 +1,25 @@
+<?php
+require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
+require_once dirname(__FILE__) . '/../config.php';
+
+// Create Modbus object
+$modbus = new ModbusMasterUdp($testip);
+$modbus->client = "192.192.15.133";
+
+// Data to be writen
+$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";
+?>

tests/PhpType/ref/test.bytes2string.php.html

@@ -0,0 +1 @@
+eHll oowlr!da<br>Hello world!<br>

tests/PhpType/ref/test.strangearray.size.php.html

@@ -0,0 +1 @@
+Exception 'Data are not in array 2 or 4 bytes'<br>25602<br>Exception 'Data are not in array 2 or 4 bytes'<br>25602<br>Exception 'Data are not in array 2 or 4 bytes'<br>

tests/PhpType/ref/test.strangearray.textarray.php.html

@@ -0,0 +1 @@
+Exception 'Data are not numeric'

tests/PhpType/test.bytes2string.php

@@ -0,0 +1,28 @@
+<?php
+
+require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
+
+// Received bytes interpreting 3 REAL values (6 words)
+$data = array( // String "Hello word!"
+    0x48, //H
+    0x65, //e
+    0x6c, //l
+    0x6c, //l
+    0x6f, //o
+    0x20, //
+    0x77, //w
+    0x6f, //o
+    0x72, //r
+    0x6c, //l
+    0x64, //d
+    0x21, //!
+    0x00, //\0
+    0x61, //a
+    0x61  //a
+);
+
+// Print string interpretation of the values
+echo PhpType::bytes2string($data) . "<br>";
+echo PhpType::bytes2string($data, true) . "<br>";
+
+?>

tests/PhpType/test.strangearray.size.php

@@ -0,0 +1,44 @@
+<?php
+/* 
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
+
+// Received bytes interpreting Mixed values
+$data = Array (
+    "0" => 100, // 32098 (DINT)
+    "1" => 2,
+    "2" => 0,
+    "3" => 0,
+    "4" => 100, // 32098 (DINT)
+    "5" => 2
+);
+
+// Print mixed values
+try {
+  echo PhpType::bytes2unsignedInt(array_slice($data, 0, 1)) . "<br>";
+} catch(Exception $e) {
+  echo "Exception 'Data are not in array 2 or 4 bytes'". "<br>";
+}
+try {
+  echo PhpType::bytes2unsignedInt(array_slice($data, 0, 2)). "<br>";
+} catch(Exception $e) {
+  echo "Exception 'Data are not in array 2 or 4 bytes'". "<br>";
+}
+try {
+  echo PhpType::bytes2unsignedInt(array_slice($data, 0, 3)). "<br>";
+} catch(Exception $e) {
+  echo "Exception 'Data are not in array 2 or 4 bytes'". "<br>";
+}
+try {
+  echo PhpType::bytes2unsignedInt(array_slice($data, 0, 4)). "<br>";
+} catch(Exception $e) {
+  echo "Exception 'Data are not in array 2 or 4 bytes'". "<br>";
+}
+try {
+  echo PhpType::bytes2unsignedInt(array_slice($data, 0, 5)). "<br>";
+} catch(Exception $e) {
+  echo "Exception 'Data are not in array 2 or 4 bytes'". "<br>";
+}
+?>

tests/PhpType/test.strangearray.textarray.php

@@ -0,0 +1,22 @@
+<?php
+/* 
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
+
+// Received bytes interpreting Mixed values
+$data = Array (
+    "0" => 100, // 32098 (DINT)
+    "1" => "e",
+    "2" => 0,
+    "3" => 0
+);
+
+// Print mixed values
+try {
+  echo PhpType::bytes2unsignedInt(array_slice($data, 0, 4));
+} catch(Exception $e) {
+  echo "Exception 'Data are not numeric'";
+}
+?>

tests/config.bat

@@ -1,5 +1,5 @@
-set php=C:\Programme\xampplite\php\php.exe
+set php=c:\Program_Files\xampplite\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="C:\Program Files\Octave\msys\bin\diff.exe"
+set diff="diff.exe"
-set testUri=http://localHost/nette/_trunk/tests
+rem set testUri=http://localHost/nette/_trunk/tests
-set wget=wget.exe 
+rem set wget=wget.exe 

tests/config.php

@@ -1,3 +1,3 @@
 <?php
-  $testip = "192.168.1.15";  
+  $testip = "192.192.15.51";  
 ?>

tutorials/Phpmodbus/Phpmodbus.pkg

@@ -21,7 +21,9 @@
   <para>
    The library implements:
    <itemizedlist>
+     <listitem><para>FC  1: read multiple coils</para></listitem>
      <listitem><para>FC  3: read multiple registers</para></listitem>
+     <listitem><para>FC 15: write multiple coils</para></listitem>
      <listitem><para>FC 16: write multiple registers</para></listitem>
      <listitem><para>FC 23: read write registers</para></listitem>
     </itemizedlist>
@@ -44,25 +46,40 @@
    Copy the Phpmodbus library to your PHP project folder.
   </para>
   <para>
-   Create a PHP script and assign the library using
+   Create a PHP script and assign the library using require_once() command
-     <programlisting role="ini">
+     <programlisting role="c">
-      <![CDATA[ require_once dirname(__FILE__) . './Phpmodbus/ModbusMasterUdp.php'; ]]>
+      <![CDATA[require_once dirname(__FILE__) . '/Phpmodbus/ModbusMasterUdp.php'; ]]>
      </programlisting>
   </para>
   <para>
-    To create the Modbus master object, that will communicate with a Modbus slave
+    To create the Modbus master object communicating to the 192.168.1.1 modbus slave 
-    at IP address 192.168.1.1, write
+    at IP address 192.168.1.1 write
-    <programlisting role="ini">
+    <programlisting role="c" linenumbering="numbered" startinglinenumber="2">
       <![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
+    To read 5 words (10 bytes) from the device ID=0 and its memory address 12288
-    the devide with Modbus ID=0 use
+    use try-catch method call
-    <programlisting role="ini">
+    <programlisting role="c" linenumbering="numbered" startinglinenumber="3">
-      <![CDATA[ $recData = $modbus->readMultipleRegisters(0, 12288, 5); ]]>
+      <![CDATA[try {
+    // Function processing
+    $recData = $modbus->readMultipleRegisters(0, 12288, 5); 
+}
+catch (Exception $e) {
+    // Exception processing, e.g. print error information
+    echo $modbus;
+    echo $e;
+    exit; 
+}]]>
      </programlisting>
   </para>
+  <para>
+    To process the function byte stream, use conversion to PHP types in 
+  </para>
+  <programlisting role="c" linenumbering="numbered" startinglinenumber="15">
+      <![CDATA[echo PhpType::bytes2string($recData); ]]>
+     </programlisting>
   <para>
   For other examples see sections bellow.
   </para>
@@ -72,6 +89,15 @@
   <para>
     This section presents library features and examples
   </para>
+    <refsect2 id="{@id example_fc1}">
+    <title>FC1 - read mutliple coils</title>
+    <para>
+      FC1 functionality example
+    </para>
+    <para>
+    {@example example_fc1.php}
+    </para>
+  </refsect2>
   <refsect2 id="{@id example_fc3}">
     <title>FC3 - read mutliple registers</title>
     <para>
@@ -81,6 +107,15 @@
     {@example example_fc3.php}
     </para>
   </refsect2>
+  <refsect2 id="{@id example_fc15}">
+    <title>FC15 - write mutliple coils</title>
+    <para>
+      FC15 functionality example
+    </para>
+    <para>
+    {@example example_fc15.php}
+    </para>
+  </refsect2>
   <refsect2 id="{@id example_fc16}">
     <title>FC16 - write mutliple registers</title>
     <para>