0.2

2013-06-14 07:32:19 -05:00
commit 6b55205c8c
39 changed files with 1884 additions and 0 deletions
@@ -0,0 +1,55 @@
+<?php
+
+require_once dirname(__FILE__) . './Phpmodbus/ModbusMasterUdp.php';
+
+// Create Modbus object
+$modbus = new ModbusMasterUdp("192.168.1.99");
+
+// FC 3
+// read 10 words (20 bytes) from device ID=0, address=12288
+$recData = $modbus->readMultipleRegisters(0, 12288, 10);
+
+if(!$recData) {
+  // Print error information if any
+  echo "</br>Error:</br>" . $modbus->errstr . "</br>";
+  exit;
+}
+
+// Received data
+echo "<h1>Received Data</h1>";
+print_r($recData);
+
+// Conversion
+echo "<h2>32 bits types</h2>";
+// Chunk the data array to set of 4 bytes
+$values = array_chunk($recData, 4);
+
+// Get float from REAL interpretation
+echo "<h3>REAL to Float</h3>";
+foreach($values as $bytes)
+  echo PhpType::bytes2float($bytes) . "</br>";
+
+// Get integer from DINT interpretation
+echo "<h3>DINT to integer </h3>";
+foreach($values as $bytes)
+  echo PhpType::bytes2signedInt($bytes) . "</br>";
+
+// Get integer of float from DINT interpretation
+echo "<h3>DWORD to integer (or float) </h3>";
+foreach($values as $bytes)
+  echo PhpType::bytes2unsignedInt($bytes) . "</br>";
+
+echo "<h2>16 bit types</h2>";
+// 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>";
+foreach($values as $bytes)
+  echo PhpType::bytes2signedInt($bytes) . "</br>";
+
+// Get unsigned integer from WORD interpretation
+echo "<h3>WORD to integer </h3>";
+foreach($values as $bytes)
+  echo PhpType::bytes2unsignedInt($bytes) . "</br>";
+?>