Implemented Modbus Serial Client

AMWD.Protocols.Modbus.Serial/Enums/RS485Flags.cs

@@ -0,0 +1,31 @@
+using System;
+
+namespace AMWD.Protocols.Modbus.Serial.Enums
+{
+	/// <summary>
+	/// Defines the flags for the RS485 driver state.
+	/// </summary>
+	[Flags]
+	internal enum RS485Flags
+	{
+		/// <summary>
+		/// RS485 is enabled.
+		/// </summary>
+		Enabled = 1,
+
+		/// <summary>
+		/// RS485 uses RTS on send.
+		/// </summary>
+		RtsOnSend = 2,
+
+		/// <summary>
+		/// RS485 uses RTS after send.
+		/// </summary>
+		RtsAfterSend = 4,
+
+		/// <summary>
+		/// Receive during send (duplex).
+		/// </summary>
+		RxDuringTx = 16
+	}
+}