0.4 Release

pull/1/head 0.4
John Long 12 years ago
parent 89b18aea02
commit 71f36c3063
  1. 257
      Phpmodbus/ModbusMasterUdp.php
  2. 2
      examples/example_750841_Mmemory.php
  3. 25
      examples/example_fc1.php
  4. 26
      examples/example_fc15.php
  5. 4
      examples/example_fc16.php
  6. 4
      examples/example_fc23.php
  7. 2
      license.txt
  8. 13
      tests/IecType/ref/test.iecReal.php.html
  9. 10
      tests/IecType/test.iecReal.php
  10. 72
      tests/ModbusMasterUdp/ref/test.fc16fc3bind.php.html
  11. 1
      tests/ModbusMasterUdp/ref/test.fc26bind.php.html
  12. 22
      tests/ModbusMasterUdp/test.fc15fc1.php
  13. 45
      tests/ModbusMasterUdp/test.fc16fc3bind.php
  14. 25
      tests/ModbusMasterUdp/test.fc26bind.php
  15. 53
      tutorials/Phpmodbus/Phpmodbus.pkg

@ -37,6 +37,8 @@ class ModbusMasterUdp {
var $sock; var $sock;
var $port = "502"; var $port = "502";
var $host = "192.168.1.1"; var $host = "192.168.1.1";
var $client = "";
var $client_port = "502";
var $status; var $status;
var $timeout_sec = 5; // 5 sec var $timeout_sec = 5; // 5 sec
var $endianess = 0; // defines endian codding (little endian == 0, big endian == 1) var $endianess = 0; // defines endian codding (little endian == 0, big endian == 1)
@ -71,6 +73,16 @@ class ModbusMasterUdp {
private function connect(){ private function connect(){
// UDP socket // UDP socket
$this->sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP); $this->sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
// Bind the client socket to a specific local port
if (strlen($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 // connect
$result = @socket_connect($this->sock, $this->host, $this->port); $result = @socket_connect($this->sock, $this->host, $this->port);
if ($result === false) { if ($result === false) {
@ -158,6 +170,121 @@ class ModbusMasterUdp {
} }
} }
/**
* 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 * readMultipleRegisters
* *
@ -257,6 +384,124 @@ class ModbusMasterUdp {
return $data; 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 * writeMultipleRegister
* *
@ -322,6 +567,7 @@ class ModbusMasterUdp {
*/ */
private function writeMultipleRegisterPacketBuilder($unitId, $reference, $data, $dataTypes){ private function writeMultipleRegisterPacketBuilder($unitId, $reference, $data, $dataTypes){
$dataLen = 0; $dataLen = 0;
$endianness = 0;
// build data section // build data section
$buffer1 = ""; $buffer1 = "";
foreach($data as $key=>$dataitem) { foreach($data as $key=>$dataitem) {
@ -330,11 +576,11 @@ class ModbusMasterUdp {
$dataLen += 2; $dataLen += 2;
} }
elseif($dataTypes[$key]=="DINT"){ elseif($dataTypes[$key]=="DINT"){
$buffer1 .= iecType::iecDINT($dataitem, $endianess); // register values x $buffer1 .= iecType::iecDINT($dataitem, $endianness); // register values x
$dataLen += 4; $dataLen += 4;
} }
elseif($dataTypes[$key]=="REAL") { elseif($dataTypes[$key]=="REAL") {
$buffer1 .= iecType::iecREAL($dataitem, $endianess); // register values x $buffer1 .= iecType::iecREAL($dataitem, $endianness); // register values x
$dataLen += 4; $dataLen += 4;
} }
else{ else{
@ -369,7 +615,7 @@ class ModbusMasterUdp {
* @return bool * @return bool
*/ */
private function writeMultipleRegisterParser($packet){ private function writeMultipleRegisterParser($packet){
$this->responseCode($rpacket); $this->responseCode($packet);
return true; return true;
} }
@ -444,6 +690,7 @@ class ModbusMasterUdp {
*/ */
private function readWriteRegistersPacketBuilder($unitId, $referenceRead, $quantity, $referenceWrite, $data, $dataTypes){ private function readWriteRegistersPacketBuilder($unitId, $referenceRead, $quantity, $referenceWrite, $data, $dataTypes){
$dataLen = 0; $dataLen = 0;
$endianness = 0;
// build data section // build data section
$buffer1 = ""; $buffer1 = "";
foreach($data as $key => $dataitem) { foreach($data as $key => $dataitem) {
@ -452,11 +699,11 @@ class ModbusMasterUdp {
$dataLen += 2; $dataLen += 2;
} }
elseif($dataTypes[$key]=="DINT"){ elseif($dataTypes[$key]=="DINT"){
$buffer1 .= iecType::iecDINT($dataitem, $endianess); // register values x $buffer1 .= iecType::iecDINT($dataitem, $endianness); // register values x
$dataLen += 4; $dataLen += 4;
} }
elseif($dataTypes[$key]=="REAL") { elseif($dataTypes[$key]=="REAL") {
$buffer1 .= iecType::iecREAL($dataitem, $endianess); // register values x $buffer1 .= iecType::iecREAL($dataitem, $endianness); // register values x
$dataLen += 4; $dataLen += 4;
} }
else{ else{

@ -3,7 +3,6 @@
require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php'; require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
// Create Modbus object // Create Modbus object
// $ip = "192.168.1.1";
$ip = "192.192.15.51"; $ip = "192.192.15.51";
$modbus = new ModbusMasterUdp($ip); $modbus = new ModbusMasterUdp($ip);
@ -14,7 +13,6 @@ try {
$mw0address = 12288; $mw0address = 12288;
$quantity = 6; $quantity = 6;
$recData = $modbus->readMultipleRegisters($moduleId, $reference, $quantity); $recData = $modbus->readMultipleRegisters($moduleId, $reference, $quantity);
print_r($recData);
} }
catch (Exception $e) { catch (Exception $e) {
echo $modbus; echo $modbus;

@ -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>";

@ -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;

@ -6,8 +6,8 @@ require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
$modbus = new ModbusMasterUdp("192.192.15.51"); $modbus = new ModbusMasterUdp("192.192.15.51");
// Data to be writen // Data to be writen
$data = array(1000, 2000, 3.0); $data = array(10, -1000, 2000, 3.0);
$dataTypes = array("INT", "DINT", "REAL"); $dataTypes = array("WORD", "INT", "DINT", "REAL");
try { try {
// FC16 // FC16

@ -6,8 +6,8 @@ require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
$modbus = new ModbusMasterUdp("192.192.15.51"); $modbus = new ModbusMasterUdp("192.192.15.51");
// Data to be writen // Data to be writen
$data = array(1000, 2000, 3.0); $data = array(10, -1000, 2000, 3.0);
$dataTypes = array("INT", "DINT", "REAL"); $dataTypes = array("WORD", "INT", "DINT", "REAL");
try { try {
// FC23 // FC23

@ -1,7 +1,7 @@
The Phpmodbus License, Version 1 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. All rights reserved.
This license is a legal agreement between you and Jan Krakora, Wago (the "Author") This license is a legal agreement between you and Jan Krakora, Wago (the "Author")

@ -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>

@ -25,26 +25,26 @@ function printPacket($packet){
if($i % 2) if($i % 2)
$str .= "_"; $str .= "_";
} }
$str .= "</br>"; $str .= "<br>\n";
return $str; return $str;
} }
echo "Endianing off <hr>"; echo "Endianing off <hr>\n";
// Print mixed values // Print mixed values
for($i=0;$i<count($data);$i++) { for($i=0;$i<count($data);$i++) {
echo $data[$i] . " --> "; echo $data[$i] . " --> ";
$v = IecType::iecREAL($data[$i], 0); $v = IecType::iecREAL($data[$i], 0);
echo printPacket($v); echo printPacket($v);
"<br>"; "<br>\n";
} }
echo "Endianing on <hr>"; echo "Endianing on <hr>\n";
// Print mixed values // Print mixed values
for($i=0;$i<count($data);$i++) { for($i=0;$i<count($data);$i++) {
echo $data[$i] . " --> "; echo $data[$i] . " --> ";
$v = IecType::iecREAL($data[$i], 1); $v = IecType::iecREAL($data[$i], 1);
echo printPacket($v); echo printPacket($v);
"<br>"; "<br>\n";
} }
?> ?>

@ -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 +1,22 @@
<?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);

@ -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);
?>

@ -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";
?>

@ -21,7 +21,9 @@
<para> <para>
The library implements: The library implements:
<itemizedlist> <itemizedlist>
<listitem><para>FC 1: read multiple coils</para></listitem>
<listitem><para>FC 3: read multiple registers</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 16: write multiple registers</para></listitem>
<listitem><para>FC 23: read write registers</para></listitem> <listitem><para>FC 23: read write registers</para></listitem>
</itemizedlist> </itemizedlist>
@ -44,25 +46,40 @@
Copy the Phpmodbus library to your PHP project folder. Copy the Phpmodbus library to your PHP project folder.
</para> </para>
<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> </programlisting>
</para> </para>
<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"); ]]> <![CDATA[ $modbus = new ModbusMasterUdp("192.168.1.1"); ]]>
</programlisting> </programlisting>
</para> </para>
<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 $e;
exit;
}]]>
</programlisting> </programlisting>
</para> </para>
<para>
To process the function byte stream, use conversion to PHP types in
</para>
<programlisting role="c" linenumbering="numbered" startinglinenumber="15">
<![CDATA[echo PhpType::bytes2string($recData); ]]>
</programlisting>
<para> <para>
For other examples see sections bellow. For other examples see sections bellow.
</para> </para>
@ -72,6 +89,15 @@
<para> <para>
This section presents library features and examples This section presents library features and examples
</para> </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}"> <refsect2 id="{@id example_fc3}">
<title>FC3 - read mutliple registers</title> <title>FC3 - read mutliple registers</title>
<para> <para>
@ -81,6 +107,15 @@
{@example example_fc3.php} {@example example_fc3.php}
</para> </para>
</refsect2> </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}"> <refsect2 id="{@id example_fc16}">
<title>FC16 - write mutliple registers</title> <title>FC16 - write mutliple registers</title>
<para> <para>

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