adduc / phpmodbus
Composer version of PhpModBus
0.8
2013-11-30 04:27 UTC
Requires
- ext-sockets: *
README
This project deals with an implementation of the basic functionality of the Modbus TCP and UDP based protocol using PHP. It's a copy of the releases from the project page over at Google Code with composer support added.
Features
- Modbus master
- FC1 - Read coils
- FC2 - Read input discretes
- FC3 - Read holding registers
- FC4 - Read holding input registers
- FC5 - Write single coil
- FC6 - Write single register
- FC15 - Write multiple coils
- FC16 - Write multiple registers
- FC22 - Mask Write register
- FC23 - Read/Write multiple registers
Example
// 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);
For more see documentation or FAQ.