Implementation of the basic functionallity

AMWD.Protocols.Modbus.Serial/AMWD.Protocols.Modbus.Serial.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFrameworks>netstandard2.0;net6.0;net8.0</TargetFrameworks>
+    <LangVersion>12.0</LangVersion>
+
+    <AssemblyName>amwd-modbus-serial</AssemblyName>
+    <RootNamespace>AMWD.Protocols.Modbus.Serial</RootNamespace>
+
+    <Product>Modbus RTU/ASCII Protocol</Product>
+    <Description>Implementation of the Modbus protocol communicating via serial line using RTU or ASCII encoding.</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AMWD.Protocols.Modbus.Common\AMWD.Protocols.Modbus.Common.csproj" />
+  </ItemGroup>
+
+</Project>

AMWD.Protocols.Modbus.Serial/README.md

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+# Modbus Protocol for .NET | Serial
+
+The Modbus Serial protocol implementation.
+
+## Example
+
+A simple example which reads the voltage between L1 and N of a Janitza device.
+
+```csharp
+string serialPort = "COM5";
+
+using var client = new ModbusSerialClient(serialPort);
+await client.ConnectAsync(CancellationToken.None);
+
+byte unitId = 5;
+ushort startAddress = 19000;
+ushort count = 2;
+
+var registers = await client.ReadHoldingRegistersAsync(unitId, startAddress, count);
+float voltage = registers.GetSingle();
+
+Console.WriteLine($"The voltage between L1 and N is: {voltage:N2}V");
+```
+
+
+## Sources
+
+- Protocol Specification: [v1.1b3]
+- Modbus Serial line: [v1.02]
+
+
+---
+
+Published under MIT License (see [**tl;dr**Legal])
+
+
+
+[v1.1b3]:         https://modbus.org/docs/Modbus_Application_Protocol_V1_1b3.pdf
+[v1.02]:          https://modbus.org/docs/Modbus_over_serial_line_V1_02.pdf
+[**tl;dr**Legal]: https://www.tldrlegal.com/license/mit-license