PHP ModbusMasterUdp::readWriteRegisters示例

<?php

require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
require_once dirname(__FILE__) . '/../config.php';
// Create Modbus object
$modbus = new ModbusMasterUdp($test_host_ip);
$modbus->client = $test_bind_client_ip;
// Data to be writen
$data = array(1000, 2000, 1.25, 1.25);
$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";