PhpSerialModbus Object
(
    [debug] => 
    [serial] => PhpSerial Object
        (
            [_device] => 
            [_winDevice] => 
            [_dHandle] => 
            [_dState] => 0
            [_buffer] => 
            [_os] => linux
            [autoFlush] => 1
        )

)
PhpSerialModbus Object
(
    [debug] => 
    [serial] => PhpSerial Object
        (
            [_device] => /dev/ttyUSB0
            [_winDevice] => 
            [_dHandle] => 
            [_dState] => 1
            [_buffer] => 
            [_os] => linux
            [autoFlush] => 1
        )

)
PhpSerialModbus Object
(
    [debug] => 
    [serial] => PhpSerial Object
        (
            [_device] => /dev/ttyUSB0
            [_winDevice] => 
            [_dHandle] => Resource id #25
            [_dState] => 2
            [_buffer] => 
            [_os] => linux
            [autoFlush] => 1
        )

)
PhpSerialModbus Object
(
    [debug] => 
    [serial] => PhpSerial Object
        (
            [_device] => /dev/ttyUSB0
            [_winDevice] => 
            [_dHandle] => 
            [_dState] => 1
            [_buffer] => 
            [_os] => linux
            [autoFlush] => 1
        )

)