<?php

use PHPModbus\ModbusMasterUdp;

// Create Modbus object
$modbus = new ModbusMasterUdp("192.192.15.51");

// Data to be writen - TRUE, FALSE
$data_true = array(true);
$data_false = array(false);

try {
	// Write single coil - FC5
	$modbus->writeSingleCoil(0, 12288, $data_true);
	$modbus->writeSingleCoil(0, 12289, $data_false);
	$modbus->writeSingleCoil(0, 12290, $data_true);
	$modbus->writeSingleCoil(0, 12291, $data_false);
} catch (Exception $e) {
	// Print error information if any
	echo $modbus;
	echo $e;
	exit;
}