remove kwargs PDU messagees.

examples/client_async_calls.py

@@ -137,7 +137,7 @@ async def async_handle_holding_registers(client):
     assert not rr.isError()  # test that call was OK
     assert rr.registers == [10] * 8
 
-    _logger.info("### write read holding registers, using **kwargs")
+    _logger.info("### write read holding registers")
     arguments = {
         "read_address": 1,
         "read_count": 8,

examples/client_calls.py

@@ -138,7 +138,7 @@ def handle_holding_registers(client):
     assert not rr.isError()  # test that call was OK
     assert rr.registers == [10] * 8
 
-    _logger.info("### write read holding registers, using **kwargs")
+    _logger.info("### write read holding registers")
     arguments = {
         "read_address": 1,
         "read_count": 8,

examples/client_custom_msg.py

@@ -36,7 +36,7 @@ class CustomModbusResponse(ModbusResponse):
     function_code = 55
     _rtu_byte_count_pos = 2
 
-    def __init__(self, values=None, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, values=None, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize."""
         ModbusResponse.__init__(self, slave, transaction, protocol, skip_encode)
         self.values = values or []
@@ -68,7 +68,7 @@ class CustomModbusRequest(ModbusRequest):
     function_code = 55
     _rtu_frame_size = 8
 
-    def __init__(self, address=None, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, address=None, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize."""
         ModbusRequest.__init__(self, slave, transaction, protocol, skip_encode)
         self.address = address
@@ -100,12 +100,12 @@ def execute(self, context):
 class Read16CoilsRequest(ReadCoilsRequest):
     """Read 16 coils in one request."""
 
-    def __init__(self, address, **kwargs):
+    def __init__(self, address, count=None, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new instance.
 
         :param address: The address to start reading from
         """
-        ReadCoilsRequest.__init__(self, address, 16, **kwargs)
+        ReadCoilsRequest.__init__(self, address, count=16, slave=slave, transaction=transaction, protocol=protocol, skip_encode=skip_encode)
 
 
 # --------------------------------------------------------------------------- #
@@ -126,12 +126,13 @@ async def main(host="localhost", port=5020):
 
         # new modbus function code.
         client.register(CustomModbusResponse)
-        request = CustomModbusRequest(32, slave=1)
+        slave=1
+        request = CustomModbusRequest(32, slave=slave)
         result = await client.execute(request)
         print(result)
 
         # inherited request
-        request = Read16CoilsRequest(32, slave=1)
+        request = Read16CoilsRequest(32, slave)
         result = await client.execute(request)
         print(result)
 

pymodbus/client/mixin.py

@@ -64,48 +64,42 @@ def execute(self, _request: ModbusRequest) -> T:
         )
 
     def read_coils(
-        self, address: int, count: int = 1, slave: int = 0, **kwargs: Any
-    ) -> T:
+        self, address: int, count: int = 1, slave: int = 0) -> T:
         """Read coils (code 0x01).
 
         :param address: Start address to read from
         :param count: (optional) Number of coils to read
         :param slave: (optional) Modbus slave ID
-        :param kwargs: (optional) Experimental parameters.
         :raises ModbusException:
         """
         return self.execute(
-            pdu_bit_read.ReadCoilsRequest(address, count, slave, **kwargs)
+            pdu_bit_read.ReadCoilsRequest(address, count, slave)
         )
 
     def read_discrete_inputs(
-        self, address: int, count: int = 1, slave: int = 0, **kwargs: Any
-    ) -> T:
+        self, address: int, count: int = 1, slave: int = 0) -> T:
         """Read discrete inputs (code 0x02).
 
         :param address: Start address to read from
         :param count: (optional) Number of coils to read
         :param slave: (optional) Modbus slave ID
-        :param kwargs: (optional) Experimental parameters.
         :raises ModbusException:
         """
         return self.execute(
-            pdu_bit_read.ReadDiscreteInputsRequest(address, count, slave, **kwargs)
+            pdu_bit_read.ReadDiscreteInputsRequest(address, count, slave)
         )
 
     def read_holding_registers(
-        self, address: int, count: int = 1, slave: int = 0, **kwargs: Any
-    ) -> T:
+        self, address: int, count: int = 1, slave: int = 0) -> T:
         """Read holding registers (code 0x03).
 
         :param address: Start address to read from
         :param count: (optional) Number of coils to read
         :param slave: (optional) Modbus slave ID
-        :param kwargs: (optional) Experimental parameters.
         :raises ModbusException:
         """
         return self.execute(
-            pdu_reg_read.ReadHoldingRegistersRequest(address, count, slave, **kwargs)
+            pdu_reg_read.ReadHoldingRegistersRequest(address, count, slave)
         )
 
     def read_input_registers(
@@ -457,14 +451,15 @@ def readwrite_registers(
         :param kwargs:
         :raises ModbusException:
         """
+        read_address = kwargs.pop("address", read_address)
         return self.execute(
             pdu_reg_read.ReadWriteMultipleRegistersRequest(
                 read_address=read_address,
                 read_count=read_count,
                 write_address=write_address,
                 write_registers=values,
                 slave=slave,
-                **kwargs,
+                **kwargs
             )
         )
 

pymodbus/pdu/bit_read_message.py

@@ -21,7 +21,7 @@ class ReadBitsRequestBase(ModbusRequest):
 
     _rtu_frame_size = 8
 
-    def __init__(self, address, count, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, address, count, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize the read request data.
 
         :param address: The start address to read from
@@ -75,7 +75,7 @@ class ReadBitsResponseBase(ModbusResponse):
 
     _rtu_byte_count_pos = 2
 
-    def __init__(self, values, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, values, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new instance.
 
         :param values: The requested values to be returned
@@ -146,7 +146,7 @@ class ReadCoilsRequest(ReadBitsRequestBase):
     function_code = 1
     function_code_name = "read_coils"
 
-    def __init__(self, address=None, count=None, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, address=None, count=None, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new instance.
 
         :param address: The address to start reading from
@@ -193,7 +193,7 @@ class ReadCoilsResponse(ReadBitsResponseBase):
 
     function_code = 1
 
-    def __init__(self, values=None, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, values=None, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new instance.
 
         :param values: The request values to respond with
@@ -214,7 +214,7 @@ class ReadDiscreteInputsRequest(ReadBitsRequestBase):
     function_code = 2
     function_code_name = "read_discrete_input"
 
-    def __init__(self, address=None, count=None, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, address=None, count=None, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new instance.
 
         :param address: The address to start reading from
@@ -261,7 +261,7 @@ class ReadDiscreteInputsResponse(ReadBitsResponseBase):
 
     function_code = 2
 
-    def __init__(self, values=None, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, values=None, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new instance.
 
         :param values: The request values to respond with

pymodbus/pdu/bit_write_message.py

@@ -49,7 +49,7 @@ class WriteSingleCoilRequest(ModbusRequest):
 
     _rtu_frame_size = 8
 
-    def __init__(self, address=None, value=None, slave=None, transaction=0, protocol=0, skip_encode=0, **_kwargs):
+    def __init__(self, address=None, value=None, slave=None, transaction=0, protocol=0, skip_encode=0):
         """Initialize a new instance.
 
         :param address: The variable address to write
@@ -119,7 +119,7 @@ class WriteSingleCoilResponse(ModbusResponse):
     function_code = 5
     _rtu_frame_size = 8
 
-    def __init__(self, address=None, value=None, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, address=None, value=None, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new instance.
 
         :param address: The variable address written to
@@ -173,7 +173,7 @@ class WriteMultipleCoilsRequest(ModbusRequest):
     function_code_name = "write_coils"
     _rtu_byte_count_pos = 6
 
-    def __init__(self, address=None, values=None, slave=None, transaction=0, protocol=0, skip_encode=0, **_kwargs):
+    def __init__(self, address=None, values=None, slave=None, transaction=0, protocol=0, skip_encode=0):
         """Initialize a new instance.
 
         :param address: The starting request address
@@ -256,7 +256,7 @@ class WriteMultipleCoilsResponse(ModbusResponse):
     function_code = 15
     _rtu_frame_size = 8
 
-    def __init__(self, address=None, count=None, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, address=None, count=None, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new instance.
 
         :param address: The starting variable address written to

pymodbus/pdu/diag_message.py

@@ -69,7 +69,7 @@ class DiagnosticStatusRequest(ModbusRequest):
     function_code_name = "diagnostic_status"
     _rtu_frame_size = 8
 
-    def __init__(self, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a diagnostic request."""
         ModbusRequest.__init__(self, slave, transaction, protocol, skip_encode)
         self.message = None
@@ -131,7 +131,7 @@ class DiagnosticStatusResponse(ModbusResponse):
     function_code = 0x08
     _rtu_frame_size = 8
 
-    def __init__(self, slave=0, transaction=0, protocol=0, skip_encode=False, **_kwargs):
+    def __init__(self, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a diagnostic response."""
         ModbusResponse.__init__(self, slave, transaction, protocol, skip_encode)
         self.message = None
@@ -188,15 +188,15 @@ class DiagnosticStatusSimpleRequest(DiagnosticStatusRequest):
     the execute method
     """
 
-    def __init__(self, data=0x0000, **kwargs):
+    def __init__(self, data=0x0000, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a simple diagnostic request.
 
         The data defaults to 0x0000 if not provided as over half
         of the functions require it.
 
         :param data: The data to send along with the request
         """
-        DiagnosticStatusRequest.__init__(self, **kwargs)
+        DiagnosticStatusRequest.__init__(self, slave=slave, transaction=transaction, protocol=protocol, skip_encode=skip_encode)
         self.message = data
 
     async def execute(self, *args):
@@ -213,12 +213,12 @@ class DiagnosticStatusSimpleResponse(DiagnosticStatusResponse):
     2 bytes of data.
     """
 
-    def __init__(self, data=0x0000, **kwargs):
+    def __init__(self, data=0x0000, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Return a simple diagnostic response.
 
         :param data: The resulting data to return to the client
         """
-        DiagnosticStatusResponse.__init__(self, **kwargs)
+        DiagnosticStatusResponse.__init__(self, slave=slave, transaction=transaction, protocol=protocol, skip_encode=skip_encode)
         self.message = data
 
 
@@ -235,12 +235,12 @@ class ReturnQueryDataRequest(DiagnosticStatusRequest):
 
     sub_function_code = 0x0000
 
-    def __init__(self, message=b"\x00\x00", slave=None, **kwargs):
+    def __init__(self, message=b"\x00\x00", slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new instance of the request.
 
         :param message: The message to send to loopback
         """
-        DiagnosticStatusRequest.__init__(self, slave=slave, **kwargs)
+        DiagnosticStatusRequest.__init__(self, slave=slave, transaction=transaction, protocol=protocol, skip_encode=skip_encode)
         if not isinstance(message, bytes):
             raise ModbusException(f"message({type(message)}) must be bytes")
         self.message = message
@@ -263,12 +263,12 @@ class ReturnQueryDataResponse(DiagnosticStatusResponse):
 
     sub_function_code = 0x0000
 
-    def __init__(self, message=b"\x00\x00", **kwargs):
+    def __init__(self, message=b"\x00\x00", slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new instance of the response.
 
         :param message: The message to loopback
         """
-        DiagnosticStatusResponse.__init__(self, **kwargs)
+        DiagnosticStatusResponse.__init__(self, slave=slave, transaction=transaction, protocol=protocol, skip_encode=skip_encode)
         if not isinstance(message, bytes):
             raise ModbusException(f"message({type(message)}) must be bytes")
         self.message = message
@@ -290,12 +290,12 @@ class RestartCommunicationsOptionRequest(DiagnosticStatusRequest):
 
     sub_function_code = 0x0001
 
-    def __init__(self, toggle=False, slave=None, **kwargs):
+    def __init__(self, toggle=False, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new request.
 
         :param toggle: Set to True to toggle, False otherwise
         """
-        DiagnosticStatusRequest.__init__(self, slave=slave, **kwargs)
+        DiagnosticStatusRequest.__init__(self, slave=slave, transaction=transaction, protocol=protocol, skip_encode=skip_encode)
         if toggle:
             self.message = [ModbusStatus.ON]
         else:
@@ -323,12 +323,12 @@ class RestartCommunicationsOptionResponse(DiagnosticStatusResponse):
 
     sub_function_code = 0x0001
 
-    def __init__(self, toggle=False, **kwargs):
+    def __init__(self, toggle=False, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize a new response.
 
         :param toggle: Set to True if we toggled, False otherwise
         """
-        DiagnosticStatusResponse.__init__(self, **kwargs)
+        DiagnosticStatusResponse.__init__(self, slave=slave, transaction=transaction, protocol=protocol, skip_encode=skip_encode)
         if toggle:
             self.message = [ModbusStatus.ON]
         else:
@@ -434,9 +434,9 @@ class ForceListenOnlyModeResponse(DiagnosticStatusResponse):
     sub_function_code = 0x0004
     should_respond = False
 
-    def __init__(self, **kwargs):
+    def __init__(self, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize to block a return response."""
-        DiagnosticStatusResponse.__init__(self, **kwargs)
+        DiagnosticStatusResponse.__init__(self, slave=slave, transaction=transaction, protocol=protocol, skip_encode=skip_encode)
         self.message = []
 
 
@@ -816,9 +816,10 @@ class GetClearModbusPlusRequest(DiagnosticStatusSimpleRequest):
 
     sub_function_code = 0x0015
 
-    def __init__(self, slave=None, **kwargs):
+    def __init__(self, data=0, slave=0, transaction=0, protocol=0, skip_encode=False):
         """Initialize."""
-        super().__init__(slave=slave, **kwargs)
+        super().__init__(slave=slave, transaction=transaction, protocol=protocol, skip_encode=skip_encode)
+        self.message=data
 
     def get_response_pdu_size(self):
         """Return a series of 54 16-bit words (108 bytes) in the data field of the response.