node-red-contrib-modbus

node-red-contrib-modbus

The all in one Modbus TCP and Serial contribution package for Node-RED.

Node-RED contribution package for Modbus

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Based on modbus-serial with TCP, C701, Telnet, Serial, RTU buffered, and ASCII

• stress tested with Node-RED v0.17.5 and Node.js v6 LTS
• works with queueing per unit and round robin scheduling
• Node.JS 4.x is supported with v1.x
• prepared for the next LTS of Node.js v8.x

Install

Run the following command in the root directory of your Node-RED install

npm install node-red-contrib-modbus

Run the following command for global install

npm install -g node-red-contrib-modbus

try these options on npm install to build, if you have problems to install

--unsafe-perm --build-from-source

Update/Upgrade

To update the dependencies or the whole package, you have just to install again. To get a special version please set the version with @M.M.F:

npm install node-red-contrib-modbus@1.3.0

or global by

npm install -g node-red-contrib-modbus@1.3.0

How to use

see Wiki pages

use the Flow example to see how it works ...

see YouTube Playlist

Debug

Debug will be activated by starting Node-RED with debug mode:

DEBUG=contribModbus*,modbus-serial node-red -v

or

DEBUG=contribModbus:{option},contribModbus:{option},...

Options

• core
  • core:client
• read
• write
• server
• response
• flex
  • flex:getter
  • flex:write
  • flex:connector
  • flex:server
• modbus-serial

see Wiki pages to get more options in detail

Authors

since April 2016 by Klaus Landsdorf

History

• contribution in 2016 by iurly

• license changed in 2016 by Jason D. Harper

• started in early 2015 by Mika Karaila