Implementation of the basic functionallity

AMWD.Protocols.Modbus.Common/Enums/ModbusErrorCode.cs

@@ -0,0 +1,76 @@
+using System.ComponentModel;
+
+namespace AMWD.Protocols.Modbus.Common
+{
+	/// <summary>
+	/// List of Modbus exception codes.
+	/// </summary>
+	public enum ModbusErrorCode : byte
+	{
+		/// <summary>
+		/// No error.
+		/// </summary>
+		[Description("No error")]
+		NoError = 0x00,
+
+		/// <summary>
+		/// Function code not valid/supported.
+		/// </summary>
+		[Description("Illegal function")]
+		IllegalFunction = 0x01,
+
+		/// <summary>
+		/// Data address not in range.
+		/// </summary>
+		[Description("Illegal data address")]
+		IllegalDataAddress = 0x02,
+
+		/// <summary>
+		/// The data value to set is not valid.
+		/// </summary>
+		[Description("Illegal data value")]
+		IllegalDataValue = 0x03,
+
+		/// <summary>
+		/// Slave device produced a failure.
+		/// </summary>
+		[Description("Slave device failure")]
+		SlaveDeviceFailure = 0x04,
+
+		/// <summary>
+		/// Ack
+		/// </summary>
+		[Description("Acknowledge")]
+		Acknowledge = 0x05,
+
+		/// <summary>
+		/// Slave device is working on another task.
+		/// </summary>
+		[Description("Slave device busy")]
+		SlaveDeviceBusy = 0x06,
+
+		/// <summary>
+		/// nAck
+		/// </summary>
+		[Description("Negative acknowledge")]
+		NegativeAcknowledge = 0x07,
+
+		/// <summary>
+		/// Momory Parity Error.
+		/// </summary>
+		[Description("Memory parity error")]
+		MemoryParityError = 0x08,
+
+		/// <summary>
+		/// Gateway of the device could not be reached.
+		/// </summary>
+		[Description("Gateway path unavailable")]
+		GatewayPath = 0x0A,
+
+		/// <summary>
+		/// Gateway device did no respond.
+		/// </summary>
+		[Description("Gateway target device failed to respond")]
+		GatewayTargetDevice = 0x0B
+	}
+}

AMWD.Protocols.Modbus.Common/Enums/ModbusFunctionCode.cs

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+using System.ComponentModel;
+
+namespace AMWD.Protocols.Modbus.Common
+{
+	/// <summary>
+	/// List of the Modbus function codes.
+	/// </summary>
+	public enum ModbusFunctionCode : byte
+	{
+		/// <summary>
+		/// Read coils (Fn 1).
+		/// </summary>
+		[Description("Read Coils")]
+		ReadCoils = 0x01,
+
+		/// <summary>
+		/// Read discrete inputs (Fn 2).
+		/// </summary>
+		[Description("Read Discrete Inputs")]
+		ReadDiscreteInputs = 0x02,
+
+		/// <summary>
+		/// Reads holding registers (Fn 3).
+		/// </summary>
+		[Description("Read Holding Registers")]
+		ReadHoldingRegisters = 0x03,
+
+		/// <summary>
+		/// Reads input registers (Fn 4).
+		/// </summary>
+		[Description("Read Input Registers")]
+		ReadInputRegisters = 0x04,
+
+		/// <summary>
+		/// Writes a single coil (Fn 5).
+		/// </summary>
+		[Description("Write Single Coil")]
+		WriteSingleCoil = 0x05,
+
+		/// <summary>
+		/// Writes a single register (Fn 6).
+		/// </summary>
+		[Description("Write Single Register")]
+		WriteSingleRegister = 0x06,
+
+		/// <summary>
+		/// Writes multiple coils (Fn 15).
+		/// </summary>
+		[Description("Write Multiple Coils")]
+		WriteMultipleCoils = 0x0F,
+
+		/// <summary>
+		/// Writes multiple registers (Fn 16).
+		/// </summary>
+		[Description("Write Multiple Registers")]
+		WriteMultipleRegisters = 0x10,
+
+		/// <summary>
+		/// Tunnels service requests and method invocations (Fn 43).
+		/// </summary>
+		/// <remarks>
+		/// This function code needs additional information about its type of request.
+		/// </remarks>
+		[Description("MODBUS Encapsulated Interface (MEI)")]
+		EncapsulatedInterface = 0x2B
+	}
+}

AMWD.Protocols.Modbus.Common/Enums/ModbusObjectType.cs

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+namespace AMWD.Protocols.Modbus.Common
+{
+	/// <summary>
+	/// List of specific types.
+	/// </summary>
+	public enum ModbusObjectType
+	{
+		/// <summary>
+		/// The discrete value is a coil (read/write).
+		/// </summary>
+		Coil = 1,
+
+		/// <summary>
+		/// The discrete value is an input (read only).
+		/// </summary>
+		DiscreteInput = 2,
+
+		/// <summary>
+		/// The value is a holding register (read/write).
+		/// </summary>
+		HoldingRegister = 3,
+
+		/// <summary>
+		/// The value is an input register (read only).
+		/// </summary>
+		InputRegister = 4
+	}
+}