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Ondřej Hruška
5300b2a867
|
9 years ago | |
---|---|---|
examples | 9 years ago | |
src | 9 years ago | |
tests | 9 years ago | |
.gitignore | 9 years ago | |
LICENSE | 9 years ago | |
README.md | 9 years ago | |
composer.json | 9 years ago |
README.md
phpmodbus
Implementation of the basic functionality of the Modbus TCP and UDP based protocol using PHP.
This is a fork of the original project at https://code.google.com/p/phpmodbus/
What's new
This fork adds a namespace and fixes issues encountered when porting to PHP 7
Implemented 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
- FC23 - Read/Write multiple registers
Example:
require_once dirname(__FILE__) . '/Phpmodbus/ModbusMaster.php';
// 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 [http://code.google.com/p/phpmodbus/downloads/list documentation] or [http://code.google.com/p/phpmodbus/wiki/FAQ FAQ].
Note:
- The PHP extension php_sockets.dll should be enabled (server php.ini file)