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
pull/1/head 0.5
John Long 12 years ago
parent 6c999a7450
commit c5c65f8088
  1. 798
      Phpmodbus/ModbusMaster.php
  2. 49
      Phpmodbus/ModbusMasterTcp.php
  3. 759
      Phpmodbus/ModbusMasterUdp.php
  4. 4
      examples/example_750841_Mmemory.php
  5. 4
      examples/example_datatype.php
  6. 4
      examples/example_fc1.php
  7. 4
      examples/example_fc15.php
  8. 4
      examples/example_fc16.php
  9. 4
      examples/example_fc23.php
  10. 4
      examples/example_fc3.php
  11. 12
      index.php
  12. 1
      tests/IecType/output/test.iecByte.php.html
  13. 1
      tests/IecType/output/test.iecDInt.php.html
  14. 1
      tests/IecType/output/test.iecInt.php.html
  15. 12
      tests/IecType/output/test.iecReal.php.html
  16. 11
      tests/ModbusMaster/_test.bat
  17. 0
      tests/ModbusMaster/ref/test.tcp.fc16fc3.php.html
  18. 0
      tests/ModbusMaster/ref/test.tcp.fc26.php.html
  19. 7
      tests/ModbusMaster/ref/test.tcp.socket_protocol_mismatch.php.html
  20. 72
      tests/ModbusMaster/ref/test.udp.fc16fc3.php.html
  21. 1
      tests/ModbusMaster/ref/test.udp.fc26.php.html
  22. 44
      tests/ModbusMaster/test.tcp.fc16fc3.php
  23. 24
      tests/ModbusMaster/test.tcp.fc26.php
  24. 18
      tests/ModbusMaster/test.tcp.socket_protocol_mismatch.php
  25. 44
      tests/ModbusMaster/test.udp.fc16fc3.php
  26. 24
      tests/ModbusMaster/test.udp.fc26.php
  27. 11
      tests/ModbusMasterTcp/_test.bat
  28. 72
      tests/ModbusMasterTcp/ref/test.fc16fc3.php.html
  29. 1
      tests/ModbusMasterTcp/ref/test.fc26.php.html
  30. 44
      tests/ModbusMasterTcp/test.fc16fc3.php
  31. 24
      tests/ModbusMasterTcp/test.fc26.php
  32. 2
      tests/ModbusMasterUdp/output/test.fc15fc1.php.html
  33. 11
      tests/ModbusMasterUdp/output/test.fc16fc3bind.php.html
  34. 11
      tests/ModbusMasterUdp/output/test.fc26bind.php.html
  35. 2
      tests/ModbusMasterUdp/test.fc15fc1.php
  36. 2
      tests/ModbusMasterUdp/test.fc16fc3.php
  37. 4
      tests/ModbusMasterUdp/test.fc16fc3bind.php
  38. 2
      tests/ModbusMasterUdp/test.fc26.php
  39. 4
      tests/ModbusMasterUdp/test.fc26bind.php
  40. 1
      tests/PhpType/output/test.bytes2mixed.php.html
  41. 1
      tests/PhpType/output/test.bytes2real.php.html
  42. 1
      tests/PhpType/output/test.bytes2signedint.php.html
  43. 1
      tests/PhpType/output/test.bytes2string.php.html
  44. 6
      tests/PhpType/output/test.bytes2unsignedint.php.html
  45. 1
      tests/PhpType/output/test.strangearray.size.php.html
  46. 1
      tests/PhpType/output/test.strangearray.textarray.php.html
  47. 3
      tests/config.php
  48. 37
      tutorials/Phpmodbus/Phpmodbus.pkg

@ -0,0 +1,798 @@
<?php
/**
* 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 $id$
*
*/
require_once dirname(__FILE__) . '/IecType.php';
require_once dirname(__FILE__) . '/PhpType.php';
/**
* ModbusMaster
*
* This class deals with the MODBUS master
*
* 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 ModbusMaster {
private $sock;
public $host = "192.168.1.1";
public $port = "502";
public $client = "";
public $client_port = "502";
public $status;
public $timeout_sec = 5; // Timeout 5 sec
public $endianess = 0; // Endianess codding (little endian == 0, big endian == 1)
public $socket_protocol = "UDP"; // Socket protocol (TCP, UDP)
/**
* ModbusMaster
*
* 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"
* @param String $protocol Socket protocol (TCP, UDP)
*/
function ModbusMaster($host, $protocol){
$this->socket_protocol = $protocol;
$this->host = $host;
}
/**
* __toString
*
* Magic method
*/
function __toString() {
return "<pre>" . $this->status . "</pre>";
}
/**
* connect
*
* Connect the socket
*
* @return bool
*/
private function connect(){
// Create a protocol specific socket
if ($this->socket_protocol == "TCP"){
// TCP socket
$this->sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
} elseif ($this->socket_protocol == "UDP"){
// UDP socket
$this->sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
} else {
throw new Exception("Unknown socket protocol, should be 'TCP' or 'UDP'");
}
// Bind the client socket to a specific local port
if (strlen($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 the socket
$result = @socket_connect($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;
}
}
/**
* 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
*
* 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;
}
/**
* 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;
// 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
*
* 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, $this->endianness); // register values x
$dataLen += 4;
}
elseif($dataTypes[$key]=="REAL") {
$buffer1 .= iecType::iecREAL($dataitem, $this->endianness); // 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){
$this->responseCode($packet);
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, $this->endianness); // register values x
$dataLen += 4;
}
elseif($dataTypes[$key]=="REAL") {
$buffer1 .= iecType::iecREAL($dataitem, $this->endianness); // 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;
}
}

@ -0,0 +1,49 @@
<?php
/**
* 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 $id$
*
*/
require_once dirname(__FILE__) . '/ModbusMaster.php';
/**
* 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 $host An IP address of a Modbus TCP device. E.g. "192.168.1.1".
*/
function ModbusMasterTcp($host){
$this->host = $host;
$this->socket_protocol = "TCP";
}
}

@ -1,12 +1,12 @@
<?php
/**
* Phpmodbus Copyright (c) 2004, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
* 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, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
* @copyright Copyright (c) 2004, 2012 Jan Krakora
* @license PhpModbus license
* @category Phpmodbus
* @tutorial Phpmodbus.pkg
@ -15,773 +15,36 @@
*
*/
require_once dirname(__FILE__) . '/IecType.php';
require_once dirname(__FILE__) . '/PhpType.php';
require_once dirname(__FILE__) . '/ModbusMaster.php';
/**
* ModbusMasterUdp
*
* This class deals with the MODBUS master using UDP stack.
*
* Implemented MODBUS functions:
* 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, 2010 Jan Krakora, WAGO Kontakttechnik GmbH & Co. KG (http://www.wago.com)
* @copyright Copyright (c) 2004, 2012 Jan Krakora
* @package Phpmodbus
*
*/
class ModbusMasterUdp {
var $sock;
var $port = "502";
var $host = "192.168.1.1";
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)
class ModbusMasterUdp extends ModbusMaster {
/**
* Modbus
* ModbusMasterUdp
*
* 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".
* @param String $host An IP address of a Modbus UDP device. E.g. "192.168.1.1".
*/
function ModbusMasterUdp($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
$this->sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
// Bind the client socket to a specific local port
if (strlen($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) {
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;
}
}
/**
* 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
*
* 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;
}
/**
* 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;
// 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
*
* 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, $this->endianness); // register values x
$dataLen += 4;
}
elseif($dataTypes[$key]=="REAL") {
$buffer1 .= iecType::iecREAL($dataitem, $this->endianness); // 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){
$this->responseCode($packet);
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, $this->endianness); // register values x
$dataLen += 4;
}
elseif($dataTypes[$key]=="REAL") {
$buffer1 .= iecType::iecREAL($dataitem, $this->endianness); // 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;
$this->socket_protocol = "UDP";
}
}
?>

@ -1,10 +1,10 @@
<?php
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMaster.php';
// Create Modbus object
$ip = "192.192.15.51";
$modbus = new ModbusMasterUdp($ip);
$modbus = new ModbusMaster($ip, "UDP");
try {
// FC 3

@ -1,9 +1,9 @@
<?php
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMaster.php';
// Create Modbus object
$modbus = new ModbusMasterUdp("192.192.15.51");
$modbus = new ModbusMaster("192.192.15.51", "UDP");
try {
// FC 3

@ -1,9 +1,9 @@
<?php
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMaster.php';
// Create Modbus object
$modbus = new ModbusMasterUdp("192.192.15.51");
$modbus = new ModbusMaster("192.192.15.51", "UDP");
try {
// FC 1

@ -1,9 +1,9 @@
<?php
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMaster.php';
// Create Modbus object
$modbus = new ModbusMasterUdp("192.192.15.51");
$modbus = new ModbusMaster("192.192.15.51", "UDP");
// Data to be writen
$data = array(TRUE, FALSE, TRUE, TRUE, FALSE, TRUE, TRUE, TRUE,

@ -1,9 +1,9 @@
<?php
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMaster.php';
// Create Modbus object
$modbus = new ModbusMasterUdp("192.192.15.51");
$modbus = new ModbusMaster("192.192.15.51", "UDP");
// Data to be writen
$data = array(10, -1000, 2000, 3.0);

@ -1,9 +1,9 @@
<?php
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMaster.php';
// Create Modbus object
$modbus = new ModbusMasterUdp("192.192.15.51");
$modbus = new ModbusMaster("192.192.15.51", "UDP");
// Data to be writen
$data = array(10, -1000, 2000, 3.0);

@ -1,9 +1,9 @@
<?php
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMaster.php';
// Create Modbus object
$modbus = new ModbusMasterUdp("192.192.15.51");
$modbus = new ModbusMaster("192.192.15.51", "UDP");
try {
// FC 3

@ -1,12 +0,0 @@
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=windows-1250">
<meta name="generator" content="PSPad editor, www.pspad.com">
<title>PhpModbus</title>
</head>
<body>
<a href="examples/">Examples</a><br>
<a href="tests/">Tests</a><br>
<a href="tests/">Tutorials</a><br>
</body>
</html>

@ -1 +0,0 @@
125<br>98<br>0<br>0<br>0<br>0<br>0<br>0<br>0<br>0<br>0<br>0<br>255<br>255<br>255<br>255<br>158<br>88<br>97<br>168<br>

@ -1 +0,0 @@
Endianing off <hr>0 --> Packet: 0000_0000_</br>1 --> Packet: 0001_0000_</br>-1 --> Packet: ffff_ffff_</br>2147483647 --> Packet: ffff_7fff_</br>-2147483648 --> Packet: 0000_8000_</br>Endianing on <hr>0 --> Packet: 0000_0000_</br>1 --> Packet: 0000_0001_</br>-1 --> Packet: ffff_ffff_</br>2147483647 --> Packet: 7fff_ffff_</br>-2147483648 --> Packet: 8000_0000_</br>

@ -1 +0,0 @@
Endianing off <hr>0 --> Packet: 0000_</br>1 --> Packet: 0001_</br>-1 --> Packet: ffff_</br>32767 --> Packet: 7fff_</br>-32768 --> Packet: 8000_</br>Endianing on <hr>0 --> Packet: 0000_</br>1 --> Packet: 0001_</br>-1 --> Packet: ffff_</br>32767 --> Packet: 7fff_</br>-32768 --> Packet: 8000_</br>

@ -1,12 +0,0 @@
Endianing off <hr>
0 --> Packet: 0000_0000_<br>
1 --> Packet: 0000_3f80_<br>
-2 --> Packet: 0000_c000_<br>
0.33333333333333 --> 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>
0.33333333333333 --> Packet: 3eaa_aaab_<br>
25 --> Packet: 41c8_0000_<br>

@ -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 +1,7 @@
Fatal error: Uncaught exception 'Exception' with message 'Unknown socket protocol, should be 'TCP' or 'UDP'' in D:\Projects\20081010_phpmodbus\src\trunk\Phpmodbus\ModbusMaster.php:87
Stack trace:
#0 D:\Projects\20081010_phpmodbus\src\trunk\Phpmodbus\ModbusMaster.php(654): ModbusMaster->connect()
#1 D:\Projects\20081010_phpmodbus\src\trunk\tests\ModbusMaster\test.tcp.socket_protocol_mismatch.php(13): ModbusMaster->readWriteRegisters(0, 12288, 6, 12288, Array, Array)
#2 {main}
thrown in D:\Projects\20081010_phpmodbus\src\trunk\Phpmodbus\ModbusMaster.php on line 87

@ -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 +1,18 @@
<?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
$recData = $modbus->readWriteRegisters(0, 12288, 6, 12288, $data, $dataTypes);
// Should through an Exception
// Print status information
echo "Something wrong!";

@ -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";
?>

@ -1,2 +0,0 @@
Fatal error: Call to undefined method ModbusMasterUdp::writeMultipleCoils() in D:\Projects\20081010_phpmodbus\src\trunk\tests\ModbusMasterUdp\test.fc15fc1.php on line 11

@ -1,11 +0,0 @@
Warning: socket_bind(): unable to bind address [0]: Požadovaná adresa není v tomto kontextu platná.
in D:\Projects\20081010_phpmodbus\src\trunk\Phpmodbus\ModbusMasterUdp.php on line 78
Fatal error: Uncaught exception 'Exception' with message 'socket_bind() failed.</br>Reason: ()Požadovaná adresa není v tomto kontextu platná.
' in D:\Projects\20081010_phpmodbus\src\trunk\Phpmodbus\ModbusMasterUdp.php:80
Stack trace:
#0 D:\Projects\20081010_phpmodbus\src\trunk\Phpmodbus\ModbusMasterUdp.php(290): ModbusMasterUdp->connect()
#1 D:\Projects\20081010_phpmodbus\src\trunk\tests\ModbusMasterUdp\test.fc16fc3bind.php(13): ModbusMasterUdp->writeMultipleRegister(0, 12288, Array, Array)
#2 {main}
thrown in D:\Projects\20081010_phpmodbus\src\trunk\Phpmodbus\ModbusMasterUdp.php on line 80

@ -1,11 +0,0 @@
Warning: socket_bind(): unable to bind address [0]: Požadovaná adresa není v tomto kontextu platná.
in D:\Projects\20081010_phpmodbus\src\trunk\Phpmodbus\ModbusMasterUdp.php on line 78
Fatal error: Uncaught exception 'Exception' with message 'socket_bind() failed.</br>Reason: ()Požadovaná adresa není v tomto kontextu platná.
' in D:\Projects\20081010_phpmodbus\src\trunk\Phpmodbus\ModbusMasterUdp.php:80
Stack trace:
#0 D:\Projects\20081010_phpmodbus\src\trunk\Phpmodbus\ModbusMasterUdp.php(410): ModbusMasterUdp->connect()
#1 D:\Projects\20081010_phpmodbus\src\trunk\tests\ModbusMasterUdp\test.fc26bind.php(14): ModbusMasterUdp->readWriteRegisters(0, 12288, 6, 12288, Array, Array)
#2 {main}
thrown in D:\Projects\20081010_phpmodbus\src\trunk\Phpmodbus\ModbusMasterUdp.php on line 80

@ -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 - BOOL array
$data = array(1, 0, TRUE, TRUE, 0, 1, TRUE, TRUE,

@ -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);

@ -3,8 +3,8 @@ 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";
$modbus = new ModbusMasterUdp($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);

@ -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);

@ -3,8 +3,8 @@ 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";
$modbus = new ModbusMasterUdp($test_host_ip);
$modbus->client = $test_bind_client_ip;
// Data to be writen
$data = array(1000, 2000, 1.250, 1.250);

@ -1 +0,0 @@
32098<br>0<br>0<br>-1<br>-25000<br>25000<br>

@ -1 +0,0 @@
-1<br>0<br>1<br>-2147483648<br>2147483647<br>

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

@ -1,6 +0,0 @@
float(4294967295)
<br>int(0)
<br>int(1)
<br>float(2147483648)
<br>int(2147483647)
<br>

@ -1 +0,0 @@
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>

@ -1,3 +1,4 @@
<?php
$testip = "192.192.15.51";
$test_host_ip = "192.192.15.51";
$test_bind_client_ip = "192.192.15.113";
?>

@ -7,7 +7,7 @@
<author>
Jan Krakora
<authorblurb>
{@link mailto:jak.krakora@wago.com email}
{@link mailto:krakora.jan@googlemail.com email}
</authorblurb>
</author>
</refsynopsisdiv>
@ -16,7 +16,7 @@
<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.
Modbus TCP/UDP master class with subset of the most used Modbus commands.
</para>
<para>
The library implements:
@ -36,8 +36,8 @@
Developed with support of <graphic fileref="wago_logo.png"/> {@link http://www.wago.com}.
</note>
</refsect1>
<refsect1 id="{@id intro}">
<title>Installation</title>
<refsect1 id="{@id install}">
<title>Install</title>
<para>
At the first, it is supposed an PHP solution has been already installed on
your server (LAMP, WAMP, MSS+CGI etc.).
@ -48,14 +48,20 @@
<para>
Create a PHP script and assign the library using require_once() command
<programlisting role="c">
<![CDATA[require_once dirname(__FILE__) . '/Phpmodbus/ModbusMasterUdp.php'; ]]>
</programlisting>
<![CDATA[require_once dirname(__FILE__) . '/Phpmodbus/ModbusMaster.php'; ]]>
</programlisting>
</para>
<para>
To create UDP Modbus master object communicating to an modbus slave
e.g. at IP address 192.168.1.1 write
<programlisting role="c" linenumbering="numbered" startinglinenumber="2">
<![CDATA[ $modbus = new ModbusMaster("192.168.1.1", "UDP"); ]]>
</programlisting>
</para>
<para>
To create the Modbus master object communicating to the 192.168.1.1 modbus slave
at IP address 192.168.1.1 write
To create TCP Modbus master use
<programlisting role="c" linenumbering="numbered" startinglinenumber="2">
<![CDATA[ $modbus = new ModbusMasterUdp("192.168.1.1"); ]]>
<![CDATA[ $modbus = new ModbusMaster("192.168.1.1", "TCP"); ]]>
</programlisting>
</para>
<para>
@ -83,7 +89,7 @@ catch (Exception $e) {
<para>
For other examples see sections bellow.
</para>
</refsect1>
</refsect1>
<refsect1 id="{@id examples}">
<title>Examples</title>
<para>
@ -153,4 +159,15 @@ catch (Exception $e) {
</para>
</refsect2>
</refsect1>
<refsect1 id="{@id back_comp}">
<title>Back compatibility</title>
<para>
This version is back compatible to the last versions. Just use
<programlisting role="c">
<![CDATA[require_once dirname(__FILE__) . '/Phpmodbus/ModbusMasterUdp.php';
$modbus = new ModbusMasterUdp("192.168.1.1");
// ... ]]>
</programlisting>
</para>
</refsect1>
</refentry>
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