Source code of serial assistant and Modbus host debugging program based on C # 2010

This article will introduce a Windows Forms program developed based on C # 2010, which is a serial port assistant and Modbus host debugging tool aimed at providing effective data communication solutions for industrial automation, equipment maintenance, teaching, and research fields. This program includes key functions of serial communication and Modbus protocol, as well as a packaged program for easy installation and use by users.

Software Overview

This software is a tool that integrates serial port debugging and Modbus host communication. It allows users to send and receive data through a serial port and supports Modbus RTU protocol for device control and testing. The software is based on Developed with NET Framework 4.0 and using C # 2010 as the programming language, it provides an intuitive and easy-to-use graphical user interface.

Main functions

• Serial communication: Supports opening/closing of serial ports, configuring serial port parameters (such as baud rate, data bits, etc.), and sending and receiving data.
• Modbus Function: Implement Modbus RTU protocol, support reading and writing Modbus registers, and test Modbus devices.
• Data Display and Recording: Displays received data, supports different formats (such as hexadecimal display), and can save or load data as a file.
• Packaging Program: Provides a packaging program that facilitates user installation and deployment.

Development Environment and Technology Stack

• Development Environment: Visual Studio 2010
• Programming Language: C #
• Target Framework:. NET Framework 4.0
• Third Party Library: None

Interface Design

The software interface is divided into two parts: the upper part is the serial communication area, and the lower part is the Modbus functional area. Each section contains independent configuration settings, sending and receiving areas, and operation buttons.

Core code analysis

1. Serial port configuration and operation:

• UseSystem.IO.Ports.SerialPortClass performs serial port operations.
• Provide serial port parameter setting function, such as baud rate, data bits, stop bits, etc.
• Implement the function of reading and sending serial data.

1. Modbus RTU communication:

• Implement Modbus RTU host functionality, send requests and process responses.
• Supports commonly used Modbus function codes, such as 0x01 (read coil status), 0x03 (read hold register), etc.

1. Data Display and File Operations:

• Display received serial and Modbus data.
• provides the function of data saving and loading.

1. Packaging Program:

• Use the publishing feature of Visual Studio to generate installation packages.

Application Scenarios

This software is suitable for occasions that require serial communication and Modbus testing, such as industrial equipment debugging, teaching experiments, equipment maintenance, etc.

Conclusion

This serial port assistant and Modbus host debugging program developed based on C # 2010 has comprehensive functions and easy operation, making it very suitable for engineers and technicians to use in their daily work. Through the provided packaging program, users can easily install and run the software in a Windows environment, achieving efficient data communication and device testing.