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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require_once dirname(__FILE__) . '/../config.php';
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// Create Modbus object
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$modbus = new ModbusMasterUdp($test_host_ip);
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$modbus->client = $test_bind_client_ip;
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// Data to be writen
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$data = array(1000, 2000, 1.250, 1.250);
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$dataTypes = array("REAL", "REAL", "REAL", "REAL");
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// FC23
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$recData = $modbus->readWriteRegisters(0, 12288, 6, 12288, $data, $dataTypes);
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if(!$recData) {
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// Print error information if any
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echo "</br>Error:</br>" . $modbus->errstr . "</br>";
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//
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exit();
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}
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// Print status information
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echo "writeMultipleRegister (FC26): DONE";
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?>
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