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There are several Modbus TCP libraries available on npm. We created a GitHub repository that uses a few of the libraries and mentions a few other interesting Modbus libraries called node-modbus_library_testing.

Modbus Libraries used:

  1. Modbus-Stack that is used by iobroker.modbus
  2. Modbus-TCP

Other interesting npm packages to explore:

  1. JSModbus
  2. Modbus-RTU
  3. Modbus-WS
  4. Modbus

Search for more Modbus related modules on npm.


Run the following commands:

  1. git clone
  2. cd node-modbus_library_testing
  3. npm install

Look at the project's file for more details.