/**
* Title
*
* Description
*
* @access public
*/
function poll_device($id)
{
$rec = SQLSelectOne("SELECT * FROM modbusdevices WHERE ID='" . (int) $id . "'");
if (!$rec['ID']) {
return;
}
$rec['CHECK_LATEST'] = date('Y-m-d H:i:s');
$rec['CHECK_NEXT'] = date('Y-m-d H:i:s', time() + (int) $rec['POLLPERIOD']);
SQLUpdate('modbusdevices', $rec);
if ($rec['LINKED_OBJECT'] && $rec['LINKED_PROPERTY'] && ($rec['REQUEST_TYPE'] == 'FC5' || $rec['REQUEST_TYPE'] == 'FC6' || $rec['REQUEST_TYPE'] == 'FC15' || $rec['REQUEST_TYPE'] == 'FC16' || $rec['REQUEST_TYPE'] == 'FC23')) {
$rec['DATA'] = getGlobal($rec['LINKED_OBJECT'] . '.' . $rec['LINKED_PROPERTY']);
}
require_once dirname(__FILE__) . '/ModbusMaster.php';
$modbus = new ModbusMaster($rec['HOST'], $rec['PROTOCOL']);
if ($rec['PORT']) {
$modbus->port = $rec['PORT'];
}
if ($rec['REQUEST_TYPE'] == 'FC1') {
//FC1 Read coils
try {
$recData = $modbus->readCoils($rec['DEVICE_ID'], $rec['REQUEST_START'], $rec['REQUEST_TOTAL']);
if (is_array($recData)) {
foreach ($recData as $k => $v) {
$recData[$k] = (int) $v;
}
}
} catch (Exception $e) {
// Print error information if any
$rec['LOG'] = date('Y-m-d H:i:s') . " FC1 Error: {$modbus} {$e}\n" . $rec['LOG'];
}
} elseif ($rec['REQUEST_TYPE'] == 'FC2') {
//FC2 Read input discretes
try {
$recData = $modbus->readInputDiscretes($rec['DEVICE_ID'], $rec['REQUEST_START'], $rec['REQUEST_TOTAL']);
if (is_array($recData)) {
foreach ($recData as $k => $v) {
$recData[$k] = (int) $v;
}
}
} catch (Exception $e) {
// Print error information if any
$rec['LOG'] = date('Y-m-d H:i:s') . " FC2 Error: {$modbus} {$e}\n" . $rec['LOG'];
}
} elseif ($rec['REQUEST_TYPE'] == 'FC3') {
//FC3 Read holding registers
try {
$recData = $modbus->readMultipleRegisters($rec['DEVICE_ID'], $rec['REQUEST_START'], $rec['REQUEST_TOTAL']);
} catch (Exception $e) {
// Print error information if any
$rec['LOG'] = date('Y-m-d H:i:s') . " FC3 Error: {$modbus} {$e}\n" . $rec['LOG'];
}
} elseif ($rec['REQUEST_TYPE'] == 'FC4') {
//FC4 Read holding input registers
try {
$recData = $modbus->readMultipleInputRegisters($rec['DEVICE_ID'], $rec['REQUEST_START'], $rec['REQUEST_TOTAL']);
} catch (Exception $e) {
// Print error information if any
$rec['LOG'] = date('Y-m-d H:i:s') . " FC4 Error: {$modbus} {$e}\n" . $rec['LOG'];
}
} elseif ($rec['REQUEST_TYPE'] == 'FC5') {
//FC5 Write single coil
if ((int) $rec['DATA']) {
$data_set = array(TRUE);
} else {
$data_set = array(FALSE);
}
try {
$modbus->writeSingleCoil($rec['DEVICE_ID'], $rec['REQUEST_START'], $data_set);
} catch (Exception $e) {
$rec['LOG'] = date('Y-m-d H:i:s') . " FC5 Error: {$modbus} {$e}\n" . $rec['LOG'];
}
} elseif ($rec['REQUEST_TYPE'] == 'FC6') {
//FC6 Write single register
try {
$data_set = array((int) $rec['DATA']);
if ($rec['RESPONSE_CONVERT'] == 'r2f') {
$dataTypes = array("REAL");
$swapregs = false;
} elseif ($rec['RESPONSE_CONVERT'] == 'r2fs') {
$dataTypes = array("REAL");
$swapregs = true;
} elseif ($rec['RESPONSE_CONVERT'] == 'd2i' || $rec['RESPONSE_CONVERT'] == 'dw2i') {
$dataTypes = array("DINT");
$swapregs = false;
} elseif ($rec['RESPONSE_CONVERT'] == 'd2is' || $rec['RESPONSE_CONVERT'] == 'dw2is') {
$dataTypes = array("DINT");
$swapregs = true;
} else {
$dataTypes = array("INT");
$swapregs = false;
}
$recData = $modbus->writeSingleRegister($rec['DEVICE_ID'], $rec['REQUEST_START'], $data_set, $dataTypes, $swapregs);
} catch (Exception $e) {
// Print error information if any
$rec['LOG'] = date('Y-m-d H:i:s') . " FC6 Error: {$modbus} {$e}\n" . $rec['LOG'];
}
} elseif ($rec['REQUEST_TYPE'] == 'FC15') {
//FC15 Write multiple coils
$data_set = explode(',', $rec['DATA']);
foreach ($data_set as $k => $v) {
$data_set[$k] = (bool) $v;
}
try {
$modbus->writeMultipleCoils($rec['DEVICE_ID'], $rec['REQUEST_START'], $data_set);
} catch (Exception $e) {
$rec['LOG'] = date('Y-m-d H:i:s') . " FC15 Error: {$modbus} {$e}\n" . $rec['LOG'];
}
} elseif ($rec['REQUEST_TYPE'] == 'FC16') {
//FC16 Write multiple registers
try {
$data_set = explode(',', $rec['DATA']);
$dataTypes = array();
foreach ($data_set as $k => $v) {
if ($rec['RESPONSE_CONVERT'] == 'r2f') {
$dataTypes[] = "REAL";
$data_set[$k] = (double) $v;
$swapregs = false;
} elseif ($rec['RESPONSE_CONVERT'] == 'r2fs') {
$dataTypes[] = "REAL";
$data_set[$k] = (double) $v;
$swapregs = true;
} elseif ($rec['RESPONSE_CONVERT'] == 'd2i' || $rec['RESPONSE_CONVERT'] == 'dw2i') {
$dataTypes[] = "DINT";
$data_set[$k] = (int) $v;
$swapregs = false;
} elseif ($rec['RESPONSE_CONVERT'] == 'd2is' || $rec['RESPONSE_CONVERT'] == 'dw2is') {
$dataTypes[] = "DINT";
$data_set[$k] = (int) $v;
$swapregs = true;
} else {
$data_set[$k] = (int) $v;
$dataTypes[] = "INT";
$swapregs = false;
}
}
$recData = $modbus->writeMultipleRegister($rec['DEVICE_ID'], $rec['REQUEST_START'], $data_set, $dataTypes, $swapregs);
} catch (Exception $e) {
// Print error information if any
$rec['LOG'] = date('Y-m-d H:i:s') . " FC16 Error: {$modbus} {$e}\n" . $rec['LOG'];
}
} elseif ($rec['REQUEST_TYPE'] == 'FC23') {
//FC23 Read/Write multiple registers
//TO-DO
}
//echo $rec['LOG'];exit;
if ($rec['REQUEST_TYPE'] == 'FC1' || $rec['REQUEST_TYPE'] == 'FC2' || $rec['REQUEST_TYPE'] == 'FC3' || $rec['REQUEST_TYPE'] == 'FC4' && is_array($recData)) {
// PROCESS RESPONSE
if ($rec['RESPONSE_CONVERT'] == 'r2f') {
//REAL to Float
$values = array_chunk($recData, 4);
$recData = array();
foreach ($values as $bytes) {
echo $recData[] = PhpType::bytes2float($bytes, false);
}
} elseif ($rec['RESPONSE_CONVERT'] == 'r2fs') {
//REAL to Float (swap regs)
$values = array_chunk($recData, 4);
$recData = array();
foreach ($values as $bytes) {
echo $recData[] = PhpType::bytes2float($bytes, true);
}
} elseif ($rec['RESPONSE_CONVERT'] == 'd2i') {
//DINT to integer
$values = array_chunk($recData, 4);
$recData = array();
foreach ($values as $bytes) {
echo $recData[] = PhpType::bytes2signedInt($bytes, false);
}
} elseif ($rec['RESPONSE_CONVERT'] == 'd2is') {
//DINT to integer (swap regs)
$values = array_chunk($recData, 4);
$recData = array();
foreach ($values as $bytes) {
echo $recData[] = PhpType::bytes2signedInt($bytes, true);
}
} elseif ($rec['RESPONSE_CONVERT'] == 'dw2i') {
//DWORD to integer
$values = array_chunk($recData, 4);
$recData = array();
foreach ($values as $bytes) {
$recData[] = PhpType::bytes2unsignedInt($bytes, false);
}
} elseif ($rec['RESPONSE_CONVERT'] == 'dw2is') {
//DWORD to integer (swap regs)
$values = array_chunk($recData, 4);
$recData = array();
foreach ($values as $bytes) {
$recData[] = PhpType::bytes2unsignedInt($bytes, true);
}
} elseif ($rec['RESPONSE_CONVERT'] == 'i2i') {
//INT to integer
$values = array_chunk($recData, 2);
$recData = array();
foreach ($values as $bytes) {
$recData[] = PhpType::bytes2signedInt($bytes, false);
}
} elseif ($rec['RESPONSE_CONVERT'] == 'w2i') {
//WORD to integer
$values = array_chunk($recData, 2);
$recData = array();
foreach ($values as $bytes) {
$recData[] = PhpType::bytes2unsignedInt($bytes, false);
}
} elseif ($rec['RESPONSE_CONVERT'] == 's') {
//String
$recData = array(PhpType::bytes2string($recData));
} else {
//
}
$result = implode(',', $recData);
if ($result && $result != $rec['DATA']) {
$rec['LOG'] = date('Y-m-d H:i:s') . " " . $result . "\n" . $rec['LOG'];
}
$rec['DATA'] = $result;
SQLUpdate('modbusdevices', $rec);
if ($rec['LINKED_OBJECT'] && $rec['LINKED_PROPERTY']) {
setGlobal($rec['LINKED_OBJECT'] . '.' . $rec['LINKED_PROPERTY'], $rec['DATA'], array($this->name => '0'));
}
} else {
SQLUpdate('modbusdevices', $rec);
}
}
function getModbusRegisters($modbusHostname, $slaveAddress, $startRegister, $nRegisters)
{
/*
printf("# getModbusRegisters(modbusHostname=%s, slaveAddress=%s, startRegister=%s, nRegisters=%s\n",
$modbusHostname,
$slaveAddress,
$startRegister,
$nRegisters
);
*/
$modbus = new ModbusMaster($modbusHostname, "TCP");
/* read registers */
try {
$result = $modbus->readMultipleRegisters($slaveAddress, $startRegister, $nRegisters);
} catch (Exception $e) {
printf("Exception: %s\n", $e);
return array();
}
/* split into 1 word (2 byte) chunks */
$result = array_chunk($result, 2);
/* word results */
$r = array();
for ($i = 0; $i < sizeof($result); $i++) {
$r[$i + $startRegister] = PhpType::bytes2unsignedInt($result[$i]);
}
return $r;
}
* and open the template in the editor.
*/
require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
// Received bytes interpreting Mixed values
$data = array("0" => 100, "1" => 2, "2" => 0, "3" => 0, "4" => 100, "5" => 2);
// Print mixed values
try {
echo PhpType::bytes2unsignedInt(array_slice($data, 0, 1)) . "<br>";
} catch (Exception $e) {
echo "Exception 'Data are not in array 2 or 4 bytes'" . "<br>";
}
try {
echo PhpType::bytes2unsignedInt(array_slice($data, 0, 2)) . "<br>";
} catch (Exception $e) {
echo "Exception 'Data are not in array 2 or 4 bytes'" . "<br>";
}
try {
echo PhpType::bytes2unsignedInt(array_slice($data, 0, 3)) . "<br>";
} catch (Exception $e) {
echo "Exception 'Data are not in array 2 or 4 bytes'" . "<br>";
}
try {
echo PhpType::bytes2unsignedInt(array_slice($data, 0, 4)) . "<br>";
} catch (Exception $e) {
echo "Exception 'Data are not in array 2 or 4 bytes'" . "<br>";
}
try {
echo PhpType::bytes2unsignedInt(array_slice($data, 0, 5)) . "<br>";
} catch (Exception $e) {
echo "Exception 'Data are not in array 2 or 4 bytes'" . "<br>";
}
<?php
require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
// Received bytes interpreting DINT values
$data = array(0xff, 0xff, 0xff, 0xff, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0x80, 0x0, 0xff, 0xff, 0x7f, 0xff);
$dword = array_chunk($data, 4);
// Print float interpretation of the real value
foreach ($dword as $value) {
var_dump(PhpType::bytes2unsignedInt($value));
echo "<br>";
}
?>
/**
* ReceiveData
* @param string $JSONString
*/
public function ReceiveData($JSONString)
{
// Empfangene Daten
$Data = json_decode($JSONString);
//IPS_LogMessage("ReceiveData", utf8_decode($JSONString));
if ($Data->DataID === "{449015FB-6717-4BB6-9F95-F69945CE1272}") {
$Data = json_decode($Data->Buffer, true);
if ($this->ReadPropertyInteger("DataType") === 0) {
if ($this->ReadPropertyBoolean("ReadOnly")) {
$Value = @$Data["FC2"][$this->ReadPropertyInteger("Address")];
} else {
$Value = @$Data["FC1"][$this->ReadPropertyInteger("Address")];
}
if (isset($Value)) {
if (GetValue($this->GetIDForIdent("Value")) != $Value) {
SetValueBoolean($this->GetIDForIdent("Value"), $Value);
}
}
} else {
if ($this->ReadPropertyBoolean("ReadOnly")) {
$Bytes = @$Data["FC4"][$this->ReadPropertyInteger("Address")];
} else {
$Bytes = @$Data["FC3"][$this->ReadPropertyInteger("Address")];
}
if (isset($Bytes)) {
switch ($this->ReadPropertyInteger("DataType")) {
case 1:
case 2:
case 3:
$Value = PhpType::bytes2unsignedInt($Bytes);
break;
case 4:
case 5:
case 6:
case 8:
$Value = PhpType::bytes2signedInt($Bytes);
break;
case 7:
case 9:
$Value = PhpType::bytes2float($Bytes);
break;
}
if (GetValue($this->GetIDForIdent("Value")) != $Value) {
SetValue($this->GetIDForIdent("Value"), $Value);
}
if ($this->ReadPropertyString("Math") != "" and $this->ReadPropertyBoolean("ReadOnly")) {
$Value = $this->Math($Value . $this->ReadPropertyString("Math"));
if (GetValue($this->GetIDForIdent("ValueMath")) != $Value) {
SetValue($this->GetIDForIdent("ValueMath"), $Value);
}
}
}
}
}
}
<?php
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
// Received bytes interpreting Mixed values
$data = array("0" => 100, "1" => "e", "2" => 0, "3" => 0);
// Print mixed values
try {
echo PhpType::bytes2unsignedInt(array_slice($data, 0, 4));
} catch (Exception $e) {
echo "Exception 'Data are not numeric'";
}
function test($modbus, $id, $start, $points)
{
$recData = $modbus->readMultipleRegisters($id, $start, $points);
// Print read data
echo "</br>Data:</br>";
var_dump($recData);
echo "</br>";
// Received data
echo "<b>Received Data</b>\n";
print_r($recData);
// Conversion
echo "<h2>32 bits types</h2>\n";
// Chunk the data array to set of 4 bytes
$values = array_chunk($recData, 4);
// Get float from REAL interpretation
echo "<b>REAL to Float</b>\n";
foreach ($values as $bytes) {
echo PhpType::bytes2float($bytes) . "</br>";
}
// Get integer from DINT interpretation
echo "<b>DINT to integer </b>\n";
foreach ($values as $bytes) {
echo PhpType::bytes2signedInt($bytes) . "</br>";
}
// Get integer of float from DINT interpretation
echo "<b>DWORD to integer (or float) </b>\n";
foreach ($values as $bytes) {
echo PhpType::bytes2unsignedInt($bytes) . "</br>";
}
echo "<h2>16 bit types</h2>\n";
// Chunk the data array to set of 4 bytes
$values = array_chunk($recData, 2);
// Get signed integer from INT interpretation
echo "<b>INT to integer </b>\n";
foreach ($values as $bytes) {
echo PhpType::bytes2signedInt($bytes) . "</br>";
}
// Get unsigned integer from WORD interpretation
echo "<b>WORD to integer </b>\n";
foreach ($values as $bytes) {
echo PhpType::bytes2unsignedInt($bytes) . "</br>";
}
// Get string from STRING interpretation
echo "<b>STRING to string </b>\n";
echo PhpType::bytes2string($recData) . "</br>";
}
// Get float from REAL interpretation
echo "<h3>REAL to Float</h3>\n";
foreach ($values as $bytes) {
echo PhpType::bytes2float($bytes) . "</br>";
}
// Get integer from DINT interpretation
echo "<h3>DINT to integer </h3>\n";
foreach ($values as $bytes) {
echo PhpType::bytes2signedInt($bytes) . "</br>";
}
// Get integer of float from DINT interpretation
echo "<h3>DWORD to integer (or float) </h3>\n";
foreach ($values as $bytes) {
echo PhpType::bytes2unsignedInt($bytes) . "</br>";
}
echo "<h2>16 bit types</h2>\n";
// Chunk the data array to set of 4 bytes
$values = array_chunk($recData, 2);
// Get signed integer from INT interpretation
echo "<h3>INT to integer </h3>\n";
foreach ($values as $bytes) {
echo PhpType::bytes2signedInt($bytes) . "</br>";
}
// Get unsigned integer from WORD interpretation
echo "<h3>WORD to integer </h3>\n";
foreach ($values as $bytes) {
echo PhpType::bytes2unsignedInt($bytes) . "</br>";
}
// Get string from STRING interpretation
echo "<h3>STRING to string </h3>\n";
echo PhpType::bytes2string($recData) . "</br>";