Modbus TCP and UDP library for PHP., originally from code.google.com/p/phpmodbus
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php-modbus/Phpmodbus/ModbusMasterTcp.php

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1.3 KiB

<?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";
}
}