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node-red-contrib-modbus/modbus/modbus-basics

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Readme

Node-RED Modbus

node-red-contrib-modbus

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

Node-RED contribution package for Modbus

Support for the project straight away!

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

stress tested with Node-RED v0.16.2 and Node.js (4.7/6.9 LTS)
works with queueing per unit and round robin scheduling

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@1.0.16

npm install -g node-red-contrib-modbus@1.0.16

How to use

see Wiki pages

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

see YouTube Playlist

Flow Example

Debug

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

DEBUG=node_red_contrib_modbus node-red -v

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