<?php require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php'; require_once dirname(__FILE__) . '/../config.php'; // Create Modbus object $modbus = new ModbusMasterUdp($test_host_ip); // Test requirements echo "Test should pass when %IX0.0==FALSE and %IX0.1==TRUE\n"; // Read input discretes - FC 2 $recData = $modbus->readInputDiscretes(0, 0, 2); var_dump($recData);