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

)
PhpSerialModbus Object
(
    [debug] => 
    [serial] => PhpSerial Object
        (
            [_device] => /dev/ttyGW
            [_winDevice] => 
            [_dHandle] => Resource id #26
            [_dState] => 2
            [_buffer] => 
            [_os] => linux
            [autoFlush] => 1
        )

)
DEBUG [query sent]: \x01\x03\x00\x32\x00\x03\xa4\x04
DEBUG [response received]: \x
DEBUG [no response]
0DEBUG [query sent]: \x01\x04\x00\x1d\x00\x03\x20\x0d
0DEBUG [response received]: \x