Modbus TCP and UDP library for PHP., originally from code.google.com/p/phpmodbus
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<?php
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require_once dirname(__FILE__) . '/../Phpmodbus/ModbusMasterUdp.php';
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// Create Modbus object
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$modbus = new ModbusMasterUdp("192.192.15.51");
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// Data to be writen
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$data = array(1000, 2000, 3.0);
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$dataTypes = array("INT", "DINT", "REAL");
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try {
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// FC16
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$modbus->writeMultipleRegister(0, 12288, $data, $dataTypes);
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}
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catch (Exception $e) {
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// Print error information if any
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echo $modbus;
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echo $e;
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exit;
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}
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// Print status information
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echo $modbus;
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?>
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