public void ReadHoldingRegistersPDU_ArgumentRange() { IProtocolDataUnit TestingPDU; try { TestingPDU = new ReadHoldingRegistersPDU(MinAddress - 1, NormQuantity); Assert.Fail("Min Address Error"); } catch (ArgumentOutOfRangeException) { } try { TestingPDU = new ReadHoldingRegistersPDU(MaxAddress + 1, NormQuantity); Assert.Fail("Max Address Error"); } catch (ArgumentOutOfRangeException) { } try { TestingPDU = new ReadHoldingRegistersPDU(NormAddress, MinQuantity - 1); Assert.Fail("Min Quantity Error"); } catch (ArgumentOutOfRangeException) { } try { TestingPDU = new ReadHoldingRegistersPDU(NormAddress, MaxQuantity + 1); Assert.Fail("Max Quantity Error"); } catch (ArgumentOutOfRangeException) { } }
public void RTU_ADU_LifeCycle() { var ClientPDU = new ReadHoldingRegistersPDU(5, 10); var Device = new RTU_Device(1); var ClientADU = new RTU_ADU(Device, ClientPDU); var ServerADU = new RTU_ADU(Device); ServerADU.CheckRequest(ClientADU.BuildRequest()); }
public int[] ReadHoldingRegisters(IModbusDevice Device, int StartAddr, int Quantity) { if (!(Device is RTU_Device)) { throw new ArgumentException("Wrong Type", "Device"); } var PDU = new ReadHoldingRegistersPDU(StartAddr, Quantity); var ADU = new RTU_ADU((Device as RTU_Device), PDU); Query(ADU); return(PDU.Value); }
[TestMethod] // Oficial Example public void ReadHoldingRegistersPDU_DocSampleReq() { var PDU = new ReadHoldingRegistersPDU(107, 3); var ExpectedReq = new byte[] { 0x03, // Function Code 0x00, // Starting Address Hi 0x6B, // Starting Address Lo 0x00, // Quantity of Inputs Hi 0x03, // Quantity of Inputs Lo }; var ActualReq = PDU.BuildRequest(); CollectionAssert.AreEqual(ExpectedReq, ActualReq, "Wrong Request"); }
public Status CheckRequest(byte[] Request) { if (Request.Length < 13) { return(Status.Error); } Header = new MBAP(Request); if (Header.ProtocolID != 0) { return(Status.Error); } switch (Request[1]) { case 0x01: PDU = new ReadCoilsPDU(); break; case 0x02: PDU = new ReadDiscreteInputsPDU(); break; case 0x03: PDU = new ReadHoldingRegistersPDU(); break; case 0x04: PDU = new ReadInputRegistersPDU(); break; case 0x05: PDU = new WriteSingleCoilPDU(); break; case 0x06: PDU = new WriteSingleRegisterPDU(); break; case 0x0F: PDU = new WriteMultipleCoilsPDU(); break; case 0x10: PDU = new WriteMultipleRegistersPDU(); break; default: return(Status.Error); } var PDURequest = new byte[Request.Length - 3]; for (int i = 0; i < PDURequest.Length; i++) { PDURequest[i] = Request[i + 1]; } return(PDU.CheckRequest(PDURequest)); }
public Status CheckRequest(byte[] Request) { if ((Request.Length < 4) || (Request[0] != Device.Address)) // 3 = Address + FuncCode + CRC_Lo + CRC_Hi { return(Status.Error); } if (CRC.Get(Request) != 0) { return(Status.Error); } switch (Request[1]) { case 0x01: PDU = new ReadCoilsPDU(); break; case 0x02: PDU = new ReadDiscreteInputsPDU(); break; case 0x03: PDU = new ReadHoldingRegistersPDU(); break; case 0x04: PDU = new ReadInputRegistersPDU(); break; case 0x05: PDU = new WriteSingleCoilPDU(); break; case 0x06: PDU = new WriteSingleRegisterPDU(); break; case 0x0F: PDU = new WriteMultipleCoilsPDU(); break; case 0x10: PDU = new WriteMultipleRegistersPDU(); break; default: return(Status.Error); } var PDURequest = new byte[Request.Length - 3]; for (int i = 0; i < PDURequest.Length; i++) { PDURequest[i] = Request[i + 1]; } return(PDU.CheckRequest(PDURequest)); }
[TestMethod] // Handling Request on Server public void ReadHoldingRegistersPDU_LifeCycle() { var RandomGen = new Random(); int Address = RandomGen.Next(MinAddress, MaxAddress); int Quantity = RandomGen.Next(MinQuantity, MaxQuantity); #region Build Server and Values var Server = new BaseModbusServer(); var Values = new int[Quantity]; for (int i = 0; i < Quantity; i++) { Values[i] = RandomGen.Next(0xFFFF); Server.AddHoldingRegister(Address + i, Values[i]); } #endregion var ClientPDU = new ReadHoldingRegistersPDU(Address, Quantity); var Request = ClientPDU.BuildRequest(); var ServerPDU = new ReadHoldingRegistersPDU(); var ReqStatus = ServerPDU.CheckRequest(Request); Assert.AreEqual(Status.OK, ReqStatus, "Recognition Error"); Assert.AreEqual(Address, ServerPDU.StartingAddress, "Whong Address recognition in CheckRequest"); Assert.AreEqual(Quantity, ServerPDU.Quantity, "Whong Quantity recognition in CheckRequest"); ServerPDU.Handle(Server); CollectionAssert.AreEqual(Values, ServerPDU.Value, "Whong Address recognition in CheckRequest"); ClientPDU.CheckResponse(ServerPDU.BuildResponse()); CollectionAssert.AreEqual(Values, ClientPDU.Value, "Whong Address recognition in CheckRequest"); }