Modbus.Net was opened two years ago when I graduated. The first target of this project is to implement a remote PLC communication with Modbus TCP. But things were going changed after half a year. When the company decide to use a IoT hardware, a universary architech should be required. Then the main platform changed to a universal communication platform. But the name "Modbus.Net" holded back.

The real Modbus Implementation has been moved to Modbus.Net.Modbus. If you want a real Modbus C# implementation, please download "Modbus.Net" and "Modbus.Net.Modbus" at the same time.

There are also "Modbus.Net.Siemens" that can communicate to Siemens S7-200, S7-200 Smart, S7-300, S7-400, S7-1200, S7-1500 using PPI or TCP/IP.

"Modbus.Net.OPC" Implements OPC DA and OPC UA protocal.

Platform Supported

Visual Studio 2017
.NET Framework 4.5
.NET Standard 1.3

RoadMap

Version 1.2.0

Modbus ASCII Support (Complete)
Siemens PPI Support (Complete)
OPC Write Data (Complete)
Get and set bit value (Complete)
Unit test (Complete)
New Document (Complete)
New Samples (Complete)

Version 1.2.2

Address Utility (Complete)
More functions in TaskManager (Complete)
More interfaces (Complete)

Version 1.2.3

Endian Problem Fix (Complete)
Name mode in TaskManager (Complete)

Version 1.2.4

OPC UA Support (Complete)
OPC Regex comparer for tags (Complete)

Version 1.3.0

.NET Core Support (Complete)
Fix a bug in BaseMachine (Complete)

Version 1.3.1

InputStruct -> IInputStruct, OutputStruct -> IOutputStruct (Complete)
Generic Method For ProtocalUnit (Complete)

Version 1.3.2

Add Interface IMachineMethod and IUtilityMethod. Utiltiy and Machine can extend function using interface (Not Tested)

Version 1.3.3

TaskManager Remake (Not Tested)

Version 1.3.4

A Serial Port now can connect to multiple machines using same protocol with different slave address (Not Tested)

Version 1.3.5

New log system using serilog (Not Tested)

Version 1.3.6

Add gereric Type for BaseConnector, now protocol developer can pass any type to BaseConnector not only byte[] (Not Tested)
Add more gereric types in Modbus.Net to support this function (Not Tested)
Add more interfaces to make them completed in Modbus.Net (Not Tested)
Support this function in Modbus.Net.OPC (Not Tested)

Version 1.3.7

AddressCombiner need to add maximum length now. Combiner will consider the maximum length when combining addresses (Not Tested)

Version 1.3.8

Change Resx to app.config or appsettings.json, now you can set default params there (Not Tested)

Version 1.4.0

New Protocal Pipeline System (In Road)
New ComConnector (In Road)
Multi station Modbus RTU, ASCII and Siemens PPI (In Road)
Siemens MPI Support (In Road)
Github wiki Document (In Road)