modbus_client

Modbus TCP Client Simulator

This is a simple command-line based Modbus TCP client simulator, useful for testing and simulating Modbus TCP devices. It allows you to perform various Modbus operations such as reading and writing coils and registers.

Features

Perform Modbus TCP read and write operations Support for signed and unsigned register values Repeat operations at specified intervals Easily configurable through command-line flags

Installation

To build the program, make sure you have Go installed on your machine. Then, clone the repository and build the binary:

git clone https://github.com/torosalmonpink/modbus_client
cd modbus_client
go build -o modbus-client

This will create an executable called modbus-client.

Usage

You can run the program using the generated binary. Use the following command to see available options:

./modbus-client --help

Example

To perform a read operation for holding registers starting from address 0 with a count of 10:

./modbus-client -s 192.168.1.10 -p 502 -o read_holding_registers -u -start 0 -count 10

This will read holding registers from the Modbus server at IP address 192.168.1.10 on port 502. The -u flag indicates that the values should be treated as unsigned.

License

This project is licensed under the MIT License - see the LICENSE file for details.