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MQTT to Modbus Bridge

I use a PLC (CLICK series from AutomationDirect) to control all lighting at my home. Although the PLC and the basic lighting functionality operates independently, I needed a bridge between the PLC and the embedded Linux computer for my automation tasks implemented on a higher level. This is a simple implementation of the MQTT to Modbus bridge written in C language that allows to easily control the lights using the MQTT publish commands.

Basic Usage

MQTT publish commands:

mosquitto_pub -t plc/y709/set -m true

mosquitto_pub -t plc/y709/set -m false

mosquitto_pub -t plc/y709/toggle -n

MQTT publish responses:

plc/y709/set/ok (null)

plc/y709/toggle/ok (null)

Requirements

Installing

The software has been tested on Debian 9.3 (amd64).

Clone the repository:

git clone [email protected]:hubpav/mqtt2modbus.git

Go to the repository:

cd mqtt2modbus

Build the program:

make

Running

Currently the program does not take any arguments. The parameters can be adjusted in the beginning of main.c.

Run the program:

./mqtt2modbus

You can use PM2 process manager to keep this program starting on the boot.

pm2 start mqtt2modbus

Contributing

Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests to us.

Versioning

We use SemVer for versioning. For the versions available, see the tags on this repository.

Authors

License

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

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