Send data using modbus tcp protocol from node-red to a PLC

General
22

What a great thread to read - thanks. I am also testing modbus - but get an install error and told to read log. Log just gives me -----------------------------------------------------------
2022-07-01T05:44:20.940Z Install : node-red-contrib-modbus 5.21.2

2022-07-01T05:50:00.978Z Install : node-red-contrib-modbus 5.21.2

The only dependency i could find was optional - serial port and i already had that installed. Any pointers?

23

Please start a new thread for this, as it is an unrelated issue.
Before posting, go into your .node-red directory (that is important) and run
npm install node-red-contrib-modbus
And copy/paste the output here. When posting use the </> button at the top of the forum entry window.

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