The TCP server client architecture based on Modbus protocol is a common automation control system architecture. In this architecture, Modbus TCP servers and clients communicate using the TCP/IP protocol. A Modbus TCP server is an application that listens to TCP ports, accepts requests from clients, and processes them. The client can be any device or application that supports the TCP/IP protocol, such as a PC, PLC, or embedded system.
Modbus TCP servers typically support multiple TCP connections, each of which is an independent Modbus session. Each session can contain multiple Modbus requests and responses. The client can communicate with the server by sending Modbus requests, and the server will return Modbus responses in response to the requests. Modbus requests and responses typically include a function code that indicates the type of request or response, as well as one or more data register addresses used to store data.
TCP Server Client Source Code (C #) Download based on Modbus Protocol:
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