Added VirtualModbusClient to Common

AMWD.Protocols.Modbus.Common/Protocols/AsciiProtocol.cs

@@ -92,11 +92,11 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			string request = $":{unitId:X2}{(byte)ModbusFunctionCode.ReadCoils:X2}";
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request += $"{addrBytes[0]:X2}{addrBytes[1]:X2}";
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request += $"{countBytes[0]:X2}{countBytes[1]:X2}";
 
 			// LRC
@@ -151,11 +151,11 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			string request = $":{unitId:X2}{(byte)ModbusFunctionCode.ReadDiscreteInputs:X2}";
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request += $"{addrBytes[0]:X2}{addrBytes[1]:X2}";
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request += $"{countBytes[0]:X2}{countBytes[1]:X2}";
 
 			// LRC
@@ -209,11 +209,11 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			string request = $":{unitId:X2}{(byte)ModbusFunctionCode.ReadHoldingRegisters:X2}";
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request += $"{addrBytes[0]:X2}{addrBytes[1]:X2}";
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request += $"{countBytes[0]:X2}{countBytes[1]:X2}";
 
 			// LRC
@@ -264,11 +264,11 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			string request = $":{unitId:X2}{(byte)ModbusFunctionCode.ReadInputRegisters:X2}";
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request += $"{addrBytes[0]:X2}{addrBytes[1]:X2}";
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request += $"{countBytes[0]:X2}{countBytes[1]:X2}";
 
 			// LRC
@@ -383,7 +383,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			string request = $":{unitId:X2}{(byte)ModbusFunctionCode.WriteSingleCoil:X2}";
 
 			// Starting address
-			byte[] addrBytes = coil.Address.ToBigEndianBytes();
+			var addrBytes = coil.Address.ToBigEndianBytes();
 			request += $"{addrBytes[0]:X2}{addrBytes[1]:X2}";
 
 			// Value
@@ -426,7 +426,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			string request = $":{unitId:X2}{(byte)ModbusFunctionCode.WriteSingleRegister:X2}";
 
 			// Starting address
-			byte[] addrBytes = register.Address.ToBigEndianBytes();
+			var addrBytes = register.Address.ToBigEndianBytes();
 			request += $"{addrBytes[0]:X2}{addrBytes[1]:X2}";
 
 			// Value
@@ -497,11 +497,11 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			string request = $":{unitId:X2}{(byte)ModbusFunctionCode.WriteMultipleCoils:X2}";
 
 			// Starting address
-			byte[] addrBytes = firstAddress.ToBigEndianBytes();
+			var addrBytes = firstAddress.ToBigEndianBytes();
 			request += $"{addrBytes[0]:X2}{addrBytes[1]:X2}";
 
 			// Quantity
-			byte[] countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
+			var countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
 			request += $"{countBytes[0]:X2}{countBytes[1]:X2}";
 
 			// Byte count
@@ -567,11 +567,11 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			string request = $":{unitId:X2}{(byte)ModbusFunctionCode.WriteMultipleRegisters:X2}";
 
 			// Starting address
-			byte[] addrBytes = firstAddress.ToBigEndianBytes();
+			var addrBytes = firstAddress.ToBigEndianBytes();
 			request += $"{addrBytes[0]:X2}{addrBytes[1]:X2}";
 
 			// Quantity
-			byte[] countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
+			var countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
 			request += $"{countBytes[0]:X2}{countBytes[1]:X2}";
 
 			// Byte count

AMWD.Protocols.Modbus.Common/Protocols/RtuOverTcpProtocol.cs

@@ -119,12 +119,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.ReadCoils;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -182,12 +182,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.ReadDiscreteInputs;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -245,12 +245,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.ReadHoldingRegisters;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -305,12 +305,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.ReadInputRegisters;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -432,7 +432,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			// Function code
 			request[7] = (byte)ModbusFunctionCode.WriteSingleCoil;
 
-			byte[] addrBytes = coil.Address.ToBigEndianBytes();
+			var addrBytes = coil.Address.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
@@ -479,7 +479,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			// Function code
 			request[7] = (byte)ModbusFunctionCode.WriteSingleRegister;
 
-			byte[] addrBytes = register.Address.ToBigEndianBytes();
+			var addrBytes = register.Address.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
@@ -542,12 +542,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.WriteMultipleCoils;
 
 			// Starting address
-			byte[] addrBytes = firstAddress.ToBigEndianBytes();
+			var addrBytes = firstAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
+			var countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -622,12 +622,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.WriteMultipleRegisters;
 
 			// Starting address
-			byte[] addrBytes = firstAddress.ToBigEndianBytes();
+			var addrBytes = firstAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
+			var countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -747,7 +747,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 
 			// Transaction id
 			ushort txId = GetNextTransacitonId();
-			byte[] txBytes = txId.ToBigEndianBytes();
+			var txBytes = txId.ToBigEndianBytes();
 			header[0] = txBytes[0];
 			header[1] = txBytes[1];
 
@@ -756,7 +756,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			header[3] = 0x00;
 
 			// Number of following bytes
-			byte[] countBytes = ((ushort)followingBytes).ToBigEndianBytes();
+			var countBytes = ((ushort)followingBytes).ToBigEndianBytes();
 			header[4] = countBytes[0];
 			header[5] = countBytes[1];
 

AMWD.Protocols.Modbus.Common/Protocols/RtuProtocol.cs

@@ -96,12 +96,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[1] = (byte)ModbusFunctionCode.ReadCoils;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[2] = addrBytes[0];
 			request[3] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[4] = countBytes[0];
 			request[5] = countBytes[1];
 
@@ -156,12 +156,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[1] = (byte)ModbusFunctionCode.ReadDiscreteInputs;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[2] = addrBytes[0];
 			request[3] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[4] = countBytes[0];
 			request[5] = countBytes[1];
 
@@ -216,12 +216,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[1] = (byte)ModbusFunctionCode.ReadHoldingRegisters;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[2] = addrBytes[0];
 			request[3] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[4] = countBytes[0];
 			request[5] = countBytes[1];
 
@@ -273,12 +273,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[1] = (byte)ModbusFunctionCode.ReadInputRegisters;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[2] = addrBytes[0];
 			request[3] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[4] = countBytes[0];
 			request[5] = countBytes[1];
 
@@ -394,7 +394,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			// Function code
 			request[1] = (byte)ModbusFunctionCode.WriteSingleCoil;
 
-			byte[] addrBytes = coil.Address.ToBigEndianBytes();
+			var addrBytes = coil.Address.ToBigEndianBytes();
 			request[2] = addrBytes[0];
 			request[3] = addrBytes[1];
 
@@ -438,7 +438,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			// Function code
 			request[1] = (byte)ModbusFunctionCode.WriteSingleRegister;
 
-			byte[] addrBytes = register.Address.ToBigEndianBytes();
+			var addrBytes = register.Address.ToBigEndianBytes();
 			request[2] = addrBytes[0];
 			request[3] = addrBytes[1];
 
@@ -495,11 +495,11 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 
 			request[1] = (byte)ModbusFunctionCode.WriteMultipleCoils;
 
-			byte[] addrBytes = firstAddress.ToBigEndianBytes();
+			var addrBytes = firstAddress.ToBigEndianBytes();
 			request[2] = addrBytes[0];
 			request[3] = addrBytes[1];
 
-			byte[] countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
+			var countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
 			request[4] = countBytes[0];
 			request[5] = countBytes[1];
 
@@ -565,11 +565,11 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[0] = unitId;
 			request[1] = (byte)ModbusFunctionCode.WriteMultipleRegisters;
 
-			byte[] addrBytes = firstAddress.ToBigEndianBytes();
+			var addrBytes = firstAddress.ToBigEndianBytes();
 			request[2] = addrBytes[0];
 			request[3] = addrBytes[1];
 
-			byte[] countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
+			var countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
 			request[4] = countBytes[0];
 			request[5] = countBytes[1];
 

AMWD.Protocols.Modbus.Common/Protocols/TcpProtocol.cs

@@ -101,12 +101,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.ReadCoils;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -159,12 +159,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.ReadDiscreteInputs;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -217,12 +217,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.ReadHoldingRegisters;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -272,12 +272,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.ReadInputRegisters;
 
 			// Starting address
-			byte[] addrBytes = startAddress.ToBigEndianBytes();
+			var addrBytes = startAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = count.ToBigEndianBytes();
+			var countBytes = count.ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -389,7 +389,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			// Function code
 			request[7] = (byte)ModbusFunctionCode.WriteSingleCoil;
 
-			byte[] addrBytes = coil.Address.ToBigEndianBytes();
+			var addrBytes = coil.Address.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
@@ -431,7 +431,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			// Function code
 			request[7] = (byte)ModbusFunctionCode.WriteSingleRegister;
 
-			byte[] addrBytes = register.Address.ToBigEndianBytes();
+			var addrBytes = register.Address.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
@@ -489,12 +489,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.WriteMultipleCoils;
 
 			// Starting address
-			byte[] addrBytes = firstAddress.ToBigEndianBytes();
+			var addrBytes = firstAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
+			var countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -564,12 +564,12 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			request[7] = (byte)ModbusFunctionCode.WriteMultipleRegisters;
 
 			// Starting address
-			byte[] addrBytes = firstAddress.ToBigEndianBytes();
+			var addrBytes = firstAddress.ToBigEndianBytes();
 			request[8] = addrBytes[0];
 			request[9] = addrBytes[1];
 
 			// Quantity
-			byte[] countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
+			var countBytes = ((ushort)orderedList.Count).ToBigEndianBytes();
 			request[10] = countBytes[0];
 			request[11] = countBytes[1];
 
@@ -678,7 +678,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 
 			// Transaction id
 			ushort txId = GetNextTransacitonId();
-			byte[] txBytes = txId.ToBigEndianBytes();
+			var txBytes = txId.ToBigEndianBytes();
 			header[0] = txBytes[0];
 			header[1] = txBytes[1];
 
@@ -687,7 +687,7 @@ namespace AMWD.Protocols.Modbus.Common.Protocols
 			header[3] = 0x00;
 
 			// Number of following bytes
-			byte[] countBytes = ((ushort)followingBytes).ToBigEndianBytes();
+			var countBytes = ((ushort)followingBytes).ToBigEndianBytes();
 			header[4] = countBytes[0];
 			header[5] = countBytes[1];
 

AMWD.Protocols.Modbus.Common/Protocols/VirtualProtocol.cs

@@ -0,0 +1,478 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using AMWD.Protocols.Modbus.Common.Contracts;
+using AMWD.Protocols.Modbus.Common.Events;
+using AMWD.Protocols.Modbus.Common.Models;
+
+namespace AMWD.Protocols.Modbus.Common.Protocols
+{
+	[System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
+	internal class VirtualProtocol : IModbusProtocol, IDisposable
+	{
+		#region Fields
+
+		private bool _isDisposed;
+
+		private readonly ReaderWriterLockSlim _deviceListLock = new();
+		private readonly Dictionary<byte, ModbusDevice> _devices = [];
+
+		#endregion Fields
+
+		public void Dispose()
+		{
+			if (_isDisposed)
+				return;
+
+			_isDisposed = true;
+
+			_deviceListLock.Dispose();
+
+			foreach (var device in _devices.Values)
+				device.Dispose();
+
+			_devices.Clear();
+		}
+
+		#region Events
+
+		public event EventHandler<CoilWrittenEventArgs> CoilWritten;
+
+		public event EventHandler<RegisterWrittenEventArgs> RegisterWritten;
+
+		#endregion Events
+
+		#region Properties
+
+		public string Name => nameof(VirtualProtocol);
+
+		#endregion Properties
+
+		#region Protocol
+
+		public bool CheckResponseComplete(IReadOnlyList<byte> responseBytes) => true;
+
+		public IReadOnlyList<Coil> DeserializeReadCoils(IReadOnlyList<byte> response)
+		{
+			if (!_devices.TryGetValue(response[0], out var device))
+				throw new TimeoutException("Device not found.");
+
+			ushort start = response.GetBigEndianUInt16(1);
+			ushort count = response.GetBigEndianUInt16(3);
+
+			return Enumerable.Range(0, count)
+				.Select(i => device.GetCoil((ushort)(start + i)))
+				.ToList();
+		}
+
+		public DeviceIdentificationRaw DeserializeReadDeviceIdentification(IReadOnlyList<byte> response)
+		{
+			if (!_devices.TryGetValue(response[0], out var device))
+				throw new TimeoutException("Device not found.");
+
+			var result = new DeviceIdentificationRaw
+			{
+				AllowsIndividualAccess = false,
+				MoreRequestsNeeded = false,
+				Objects = []
+			};
+
+			if (response[1] >= 1)
+			{
+				string version = GetType().Assembly
+					.GetCustomAttribute<AssemblyInformationalVersionAttribute>()
+					.InformationalVersion;
+
+				result.Objects.Add(0, Encoding.UTF8.GetBytes("AM.WD"));
+				result.Objects.Add(1, Encoding.UTF8.GetBytes("AMWD.Protocols.Modbus"));
+				result.Objects.Add(2, Encoding.UTF8.GetBytes(version));
+			}
+
+			if (response[1] >= 2)
+			{
+				result.Objects.Add(3, Encoding.UTF8.GetBytes("https://github.com/AM-WD/AMWD.Protocols.Modbus"));
+				result.Objects.Add(4, Encoding.UTF8.GetBytes("Modbus Protocol for .NET"));
+				result.Objects.Add(5, Encoding.UTF8.GetBytes("Virtual Device"));
+				result.Objects.Add(6, Encoding.UTF8.GetBytes("Virtual Modbus Client"));
+			}
+
+			if (response[1] >= 3)
+			{
+				for (int i = 128; i < 256; i++)
+					result.Objects.Add((byte)i, []);
+			}
+
+			return result;
+		}
+
+		public IReadOnlyList<DiscreteInput> DeserializeReadDiscreteInputs(IReadOnlyList<byte> response)
+		{
+			if (!_devices.TryGetValue(response[0], out var device))
+				throw new TimeoutException("Device not found.");
+
+			ushort start = response.GetBigEndianUInt16(1);
+			ushort count = response.GetBigEndianUInt16(3);
+
+			return Enumerable.Range(0, count)
+				.Select(i => device.GetDiscreteInput((ushort)(start + i)))
+				.ToList();
+		}
+
+		public IReadOnlyList<HoldingRegister> DeserializeReadHoldingRegisters(IReadOnlyList<byte> response)
+		{
+			if (!_devices.TryGetValue(response[0], out var device))
+				throw new TimeoutException("Device not found.");
+
+			ushort start = response.GetBigEndianUInt16(1);
+			ushort count = response.GetBigEndianUInt16(3);
+
+			return Enumerable.Range(0, count)
+				.Select(i => device.GetHoldingRegister((ushort)(start + i)))
+				.ToList();
+		}
+
+		public IReadOnlyList<InputRegister> DeserializeReadInputRegisters(IReadOnlyList<byte> response)
+		{
+			if (!_devices.TryGetValue(response[0], out var device))
+				throw new TimeoutException("Device not found.");
+
+			ushort start = response.GetBigEndianUInt16(1);
+			ushort count = response.GetBigEndianUInt16(3);
+
+			return Enumerable.Range(0, count)
+				.Select(i => device.GetInputRegister((ushort)(start + i)))
+				.ToList();
+		}
+
+		public (ushort FirstAddress, ushort NumberOfCoils) DeserializeWriteMultipleCoils(IReadOnlyList<byte> response)
+		{
+			if (!_devices.TryGetValue(response[0], out var device))
+				throw new TimeoutException("Device not found.");
+
+			ushort start = response.GetBigEndianUInt16(1);
+			ushort count = response.GetBigEndianUInt16(3);
+
+			for (int i = 0; i < count; i++)
+			{
+				var coil = new Coil
+				{
+					Address = (ushort)(start + i),
+					HighByte = response[5 + i]
+				};
+				device.SetCoil(coil);
+
+				Task.Run(() =>
+				{
+					try
+					{
+						CoilWritten?.Invoke(this, new CoilWrittenEventArgs(
+							unitId: response[0],
+							address: coil.Address,
+							value: coil.Value));
+					}
+					catch
+					{
+						// ignore
+					}
+				});
+			}
+
+			return (start, count);
+		}
+
+		public (ushort FirstAddress, ushort NumberOfRegisters) DeserializeWriteMultipleHoldingRegisters(IReadOnlyList<byte> response)
+		{
+			if (!_devices.TryGetValue(response[0], out var device))
+				throw new TimeoutException("Device not found.");
+
+			ushort start = response.GetBigEndianUInt16(1);
+			ushort count = response.GetBigEndianUInt16(3);
+
+			for (int i = 0; i < count; i++)
+			{
+				var register = new HoldingRegister
+				{
+					Address = (ushort)(start + i),
+					HighByte = response[5 + i * 2],
+					LowByte = response[5 + i * 2 + 1]
+				};
+				device.SetHoldingRegister(register);
+
+				Task.Run(() =>
+				{
+					try
+					{
+						RegisterWritten?.Invoke(this, new RegisterWrittenEventArgs(
+							unitId: response[0],
+							address: register.Address,
+							highByte: register.HighByte,
+							lowByte: register.LowByte));
+					}
+					catch
+					{
+						// ignore
+					}
+				});
+			}
+
+			return (start, count);
+		}
+
+		public Coil DeserializeWriteSingleCoil(IReadOnlyList<byte> response)
+		{
+			if (!_devices.TryGetValue(response[0], out var device))
+				throw new TimeoutException("Device not found.");
+
+			var coil = new Coil
+			{
+				Address = response.GetBigEndianUInt16(1),
+				HighByte = response[3]
+			};
+			device.SetCoil(coil);
+
+			Task.Run(() =>
+			{
+				try
+				{
+					CoilWritten?.Invoke(this, new CoilWrittenEventArgs(
+						unitId: response[0],
+						address: coil.Address,
+						value: coil.Value));
+				}
+				catch
+				{
+					// ignore
+				}
+			});
+
+			return coil;
+		}
+
+		public HoldingRegister DeserializeWriteSingleHoldingRegister(IReadOnlyList<byte> response)
+		{
+			if (!_devices.TryGetValue(response[0], out var device))
+				throw new TimeoutException("Device not found.");
+
+			var register = new HoldingRegister
+			{
+				Address = response.GetBigEndianUInt16(1),
+				HighByte = response[3],
+				LowByte = response[4]
+			};
+			device.SetHoldingRegister(register);
+
+			Task.Run(() =>
+			{
+				try
+				{
+					RegisterWritten?.Invoke(this, new RegisterWrittenEventArgs(
+						unitId: response[0],
+						address: register.Address,
+						highByte: register.HighByte,
+						lowByte: register.LowByte));
+				}
+				catch
+				{
+					// ignore
+				}
+			});
+
+			return register;
+		}
+
+		public IReadOnlyList<byte> SerializeReadCoils(byte unitId, ushort startAddress, ushort count)
+		{
+			return [unitId, .. startAddress.ToBigEndianBytes(), .. count.ToBigEndianBytes()];
+		}
+
+		public IReadOnlyList<byte> SerializeReadDeviceIdentification(byte unitId, ModbusDeviceIdentificationCategory category, ModbusDeviceIdentificationObject objectId)
+		{
+			if (!Enum.IsDefined(typeof(ModbusDeviceIdentificationCategory), category))
+				throw new ArgumentOutOfRangeException(nameof(category));
+
+			return [unitId, (byte)category];
+		}
+
+		public IReadOnlyList<byte> SerializeReadDiscreteInputs(byte unitId, ushort startAddress, ushort count)
+		{
+			return [unitId, .. startAddress.ToBigEndianBytes(), .. count.ToBigEndianBytes()];
+		}
+
+		public IReadOnlyList<byte> SerializeReadHoldingRegisters(byte unitId, ushort startAddress, ushort count)
+		{
+			return [unitId, .. startAddress.ToBigEndianBytes(), .. count.ToBigEndianBytes()];
+		}
+
+		public IReadOnlyList<byte> SerializeReadInputRegisters(byte unitId, ushort startAddress, ushort count)
+		{
+			return [unitId, .. startAddress.ToBigEndianBytes(), .. count.ToBigEndianBytes()];
+		}
+
+		public IReadOnlyList<byte> SerializeWriteMultipleCoils(byte unitId, IReadOnlyList<Coil> coils)
+		{
+			ushort start = coils.OrderBy(c => c.Address).First().Address;
+			ushort count = (ushort)coils.Count;
+			byte[] values = coils.Select(c => c.HighByte).ToArray();
+
+			return [unitId, .. start.ToBigEndianBytes(), .. count.ToBigEndianBytes(), .. values];
+		}
+
+		public IReadOnlyList<byte> SerializeWriteMultipleHoldingRegisters(byte unitId, IReadOnlyList<HoldingRegister> registers)
+		{
+			ushort start = registers.OrderBy(c => c.Address).First().Address;
+			ushort count = (ushort)registers.Count;
+			byte[] values = registers.SelectMany(r => new[] { r.HighByte, r.LowByte }).ToArray();
+
+			return [unitId, .. start.ToBigEndianBytes(), .. count.ToBigEndianBytes(), .. values];
+		}
+
+		public IReadOnlyList<byte> SerializeWriteSingleCoil(byte unitId, Coil coil)
+		{
+			return [unitId, .. coil.Address.ToBigEndianBytes(), coil.HighByte];
+		}
+
+		public IReadOnlyList<byte> SerializeWriteSingleHoldingRegister(byte unitId, HoldingRegister register)
+		{
+			return [unitId, .. register.Address.ToBigEndianBytes(), register.HighByte, register.LowByte];
+		}
+
+		public void ValidateResponse(IReadOnlyList<byte> request, IReadOnlyList<byte> response)
+		{
+			if (!request.SequenceEqual(response))
+				throw new InvalidOperationException("Request and response have to be the same on virtual protocol.");
+		}
+
+		#endregion Protocol
+
+		#region Device Handling
+
+		public bool AddDevice(byte unitId)
+		{
+			Assertions();
+			using (_deviceListLock.GetWriteLock())
+			{
+				if (_devices.ContainsKey(unitId))
+					return false;
+
+				_devices.Add(unitId, new ModbusDevice(unitId));
+				return true;
+			}
+		}
+
+		public bool RemoveDevice(byte unitId)
+		{
+			Assertions();
+			using (_deviceListLock.GetWriteLock())
+			{
+				if (_devices.ContainsKey(unitId))
+					return false;
+
+				return _devices.Remove(unitId);
+			}
+		}
+
+		#endregion Device Handling
+
+		#region Entity Handling
+
+		public Coil GetCoil(byte unitId, ushort address)
+		{
+			Assertions();
+			using (_deviceListLock.GetReadLock())
+			{
+				return _devices.TryGetValue(unitId, out var device)
+					? device.GetCoil(address)
+					: null;
+			}
+		}
+
+		public void SetCoil(byte unitId, Coil coil)
+		{
+			Assertions();
+			using (_deviceListLock.GetWriteLock())
+			{
+				if (_devices.TryGetValue(unitId, out var device))
+					device.SetCoil(coil);
+			}
+		}
+
+		public DiscreteInput GetDiscreteInput(byte unitId, ushort address)
+		{
+			Assertions();
+			using (_deviceListLock.GetReadLock())
+			{
+				return _devices.TryGetValue(unitId, out var device)
+					? device.GetDiscreteInput(address)
+					: null;
+			}
+		}
+
+		public void SetDiscreteInput(byte unitId, DiscreteInput discreteInput)
+		{
+			Assertions();
+			using (_deviceListLock.GetWriteLock())
+			{
+				if (_devices.TryGetValue(unitId, out var device))
+					device.SetDiscreteInput(discreteInput);
+			}
+		}
+
+		public HoldingRegister GetHoldingRegister(byte unitId, ushort address)
+		{
+			Assertions();
+			using (_deviceListLock.GetReadLock())
+			{
+				return _devices.TryGetValue(unitId, out var device)
+					? device.GetHoldingRegister(address)
+					: null;
+			}
+		}
+
+		public void SetHoldingRegister(byte unitId, HoldingRegister holdingRegister)
+		{
+			Assertions();
+			using (_deviceListLock.GetWriteLock())
+			{
+				if (_devices.TryGetValue(unitId, out var device))
+					device.SetHoldingRegister(holdingRegister);
+			}
+		}
+
+		public InputRegister GetInputRegister(byte unitId, ushort address)
+		{
+			Assertions();
+			using (_deviceListLock.GetReadLock())
+			{
+				return _devices.TryGetValue(unitId, out var device)
+					? device.GetInputRegister(address)
+					: null;
+			}
+		}
+
+		public void SetInputRegister(byte unitId, InputRegister inputRegister)
+		{
+			Assertions();
+			using (_deviceListLock.GetWriteLock())
+			{
+				if (_devices.TryGetValue(unitId, out var device))
+					device.SetInputRegister(inputRegister);
+			}
+		}
+
+		#endregion Entity Handling
+
+		private void Assertions()
+		{
+#if NET8_0_OR_GREATER
+			ObjectDisposedException.ThrowIf(_isDisposed, this);
+#else
+			if (_isDisposed)
+				throw new ObjectDisposedException(GetType().Name);
+#endif
+		}
+	}
+}