PHP code example of adduc / phpmodbus

1. Go to this page and download the library: Download adduc/phpmodbus library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

adduc / phpmodbus example snippets


 // Modbus master UDP
 $modbus = new ModbusMaster("192.168.1.1", "UDP");
 // Read multiple registers
 try {
     $recData = $modbus->readMultipleRegisters(0, 12288, 5);
 }
 catch (Exception $e) {
     // Print error information if any
     echo $modbus;
     echo $e;
     exit;
 }
 // Print data in string format
 echo PhpType::bytes2string($recData);