Python create_function_from_response_pdu Examples

Example #1

File: test_functions.py Project: whble/uModbus

def test_create_from_response_pdu_raising_exception(error_code,
                                                    exception_class):
    """ Test if correct exception is raied when response PDU contains error
    response.
    """
    resp_pdu = struct.pack('>BB', 81, error_code)

    with pytest.raises(exception_class):
        create_function_from_response_pdu(resp_pdu)

Example #2

File: test_functions.py Project: AdvancedClimateSystems/uModbus

def test_create_from_response_pdu_raising_exception(error_code,
                                                    exception_class):
    """ Test if correct exception is raied when response PDU contains error
    response.
    """
    resp_pdu = struct.pack('>BB', 81, error_code)

    with pytest.raises(exception_class):
        create_function_from_response_pdu(resp_pdu)

Example #3

File: test_functions.py Project: whble/uModbus

def test_create_function_from_response_pdu():
    read_coils = ReadCoils()
    read_coils.starting_address = 1
    read_coils.quantity = 9

    req_pdu = read_coils.request_pdu
    resp_pdu = struct.pack('>BBB', 1, 1, 3)

    assert isinstance(create_function_from_response_pdu(resp_pdu, req_pdu),
                      ReadCoils)

Example #4

File: test_functions.py Project: AdvancedClimateSystems/uModbus

def test_create_function_from_response_pdu():
    read_coils = ReadCoils()
    read_coils.starting_address = 1
    read_coils.quantity = 9

    req_pdu = read_coils.request_pdu
    resp_pdu = struct.pack('>BBB', 1, 1, 3)

    assert isinstance(create_function_from_response_pdu(resp_pdu, req_pdu),
                      ReadCoils)

Example #5

def parse_response_adu(resp_adu, req_adu=None):
    """ Parse response ADU and return response data. Some functions require
    request ADU to fully understand request ADU.

    :param resp_adu: Resonse ADU.
    :param req_adu: Request ADU, default None.
    :return: Response data.
    """
    resp_pdu = resp_adu[7:]
    function = create_function_from_response_pdu(resp_pdu, req_adu)

    return function.data

Example #6

File: tcp.py Project: AdvancedClimateSystems/uModbus

def parse_response_adu(resp_adu, req_adu=None):
    """ Parse response ADU and return response data. Some functions require
    request ADU to fully understand request ADU.

    :param resp_adu: Resonse ADU.
    :param req_adu: Request ADU, default None.
    :return: Response data.
    """
    resp_pdu = resp_adu[7:]
    function = create_function_from_response_pdu(resp_pdu, req_adu)

    return function.data

Example #7

File: rtu.py Project: MashaSamoylova/secure-modbus-rtu

def parse_response_adu(resp_adu, req_adu=None):
    """ Parse response ADU and return response data. Some functions require
    request ADU to fully understand request ADU.

    :param resp_adu: Resonse ADU.
    :param req_adu: Request ADU, default None.
    :return: Response data.
    """
    aes = AES.new(key, AES.MODE_CBC, IV)
    resp_pdu = aes.decrypt(resp_adu[1:-2])

    validate_crc(resp_adu)

    req_pdu = None

    if req_adu is not None:
        req_pdu = req_adu[1:-2]

    aes = AES.new(key, AES.MODE_CBC, IV)
    req_pdu = aes.decrypt(req_pdu)

    function = create_function_from_response_pdu(resp_pdu, req_pdu)

    return function.data