/**
* WriteSingleRegister
* @param integer $UnitId
* @param integer $Reference
* @param integer $Data
*/
protected function WriteSingleRegister($UnitId, $Reference, $Data)
{
include_once __DIR__ . "/lib/ModbusMaster.php";
$URL = "http://" . $this->ReadPropertyString("IPAddress");
//$headers = @get_headers($URL);
if (!Sys_Ping($this->ReadPropertyString("IPAddress"), 1000)) {
$this->SetStatus(201);
trigger_error("Invalid IP-Address", E_USER_ERROR);
exit;
}
$this->SetStatus(102);
if ($this->ReadPropertyInteger("GatewayMode") === 0) {
$modbus = new ModbusMasterTcp($this->ReadPropertyString("IPAddress"));
} else {
$modbus = new ModbusMasterUdp($this->ReadPropertyString("IPAddress"));
}
//FC 6
try {
if (IPS_SemaphoreEnter("ModbusMaster", 1000)) {
$this->Log("WriteSingleRegister({$UnitId}|{$Reference}|{$Data})");
$modbus->writeSingleRegister($UnitId, $Reference, array($Data), array("INT"));
IPS_SemaphoreLeave("ModbusMaster");
}
} catch (Exception $e) {
$this->SetStatus(200);
trigger_error("ModbusMaster: " . $e->getMessage() . "!", E_USER_ERROR);
exit;
}
}
<?php
require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
require_once dirname(__FILE__) . '/../config.php';
// Create Modbus object
$modbus = new ModbusMasterUdp($test_host_ip);
// Data to be writen - TRUE, FALSE
$data_true = array(TRUE);
$data_false = array(FALSE);
// Reset target WORD
$modbus->writeSingleRegister(0, 12288, array(0), array('WORD'));
// 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);
// Read data - FC3
$recData = $modbus->readMultipleRegisters(0, 12288, 1);
print_r($recData);
<?php
require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
require_once dirname(__FILE__) . '/../config.php';
// Create Modbus object
$modbus = new ModbusMasterUdp($test_host_ip);
// Data to be writen - INT
$data = array(-12345);
$dataTypes = array("INT");
// Write data - FC6
$modbus->writeSingleRegister(0, 12288, $data, $dataTypes);
// Read data - FC3
$recData = $modbus->readMultipleRegisters(0, 12288, 1);
print_r($recData);