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# node-red-contrib-modbus

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

[![nodemodbus64](images/modbus-icon64.png)](https://www.npmjs.com/package/node-red-contrib-modbus)

[Node-RED][1] contribution package for [Modbus][8]

Based on [modbus-serial][2] with TCP, C701, Telnet, Serial, RTU buffered, and ASCII

* stress tested with Node-RED v1.0.4 and Node.js LTS
* works with queueing per unit and round robin scheduling

Node-RED v1.x versions:
* Node.JS 16.x will be supported with v6.+
* Node.JS 14.x is supported with v5.14.+
* Node.JS 12.x is supported with v5.x
* Node.JS 10.x is supported with v5.x

Node-RED v0.x versions:
* Node.JS 10.x is supported with v4.x
* Node.JS  8.x is supported with v3.x
* Node.JS  6.x is supported with v2.x
* Node.JS  4.x is supported with v1.x

If you like that contributor's package for Modbus, then please **give us your star at [GitHub][12]** !

## 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
    
### modbus-serial, serialport and jsmodbus

The [serialport][14] optional dependency is just to list all ports on your system in the client configuration.
It is not the [serialport][14] version to work with Modbus at runtime. 
For that check the [modbus-serial][2] or [jsmodbus][13] package.json, please!
The [modbus-serial][2] supports and works for TCP connections in that package, too.
The [jsmodbus][13] package is just to provide a simple Modbus Server node. 
All Modbus commands running on [modbus-serial][2].

### TCP or Serial testing
If you get in trouble *with TCP* connections, then check and test with just [modbus-serial][2] first, please!

If you get in trouble *with Serial* connections, then check with just [serialport][14] first, please!

## Update/Upgrade/Downgrade

To update the dependencies or the whole package, you have just to install again.

    npm show node-red-contrib-modbus@* version

To get a special version please set the version with @M.M.F:

    npm install node-red-contrib-modbus@3.6.1

or global by

    npm install -g node-red-contrib-modbus@3.6.1

## How to use

* see [Wiki][10] pages
* use the [Flow example][3] to see how it works ...
* see [YouTube Playlist][9]

![Flow Example](images/Screenshot01V210.png)

## 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},...

see [Wiki][10] pages to get more options in detail

## Contributing

Let's work together! Contributors are welcome.
Please, for the repo and send your pull requests from your repo 
to our develop branch or open issues while you're testing!

## For Developers

See the scripts of the package and the additional Shell scripts to clean, update, or upgrade this NPM package.

* dev-link (local testing with Node-RED)
* testing (unit, integration)
* coverage
* docs generation
* standard-version alpha, beta, release
* git-flow

## For Testers

Report issues, share your experiences, record tutorials,
write Wiki articles and Blogs to share more about this package, please!

## Authors

since April 2016 by [Klaus Landsdorf][4] and Community Driven

### History

* contribution since 2016 by [Contributors][6]
* license changed in 2016 by [Jason D. Harper][7]
* started in early 2015 by [Mika Karaila][5]

[1]:https://nodered.org
[2]:https://www.npmjs.com/package/modbus-serial
[3]:https://flows.nodered.org/flow/bf06a87e84395e4bce276714c6f5f884
[4]:https://github.com/biancode
[5]:https://github.com/mikakaraila
[6]:https://github.com/BiancoRoyal/node-red-contrib-modbus/graphs/contributors
[7]:https://github.com/jayharper
[8]:http://www.modbus.org/
[9]:http://bit.ly/2jzwjqP
[10]:https://github.com/BiancoRoyal/node-red-contrib-modbus/wiki/DEBUG
[11]:https://bianco-royal.space/supporter/
[12]:https://github.com/BiancoRoyal/node-red-contrib-modbus
[13]:https://www.npmjs.com/package/jsmodbus
[14]:https://www.npmjs.com/package/serialport

## Contributors

### Code Contributors

This project exists thanks to all the people who contribute. [[Contribute](CONTRIBUTING.md)].
<a href="https://github.com/BiancoRoyal/node-red-contrib-modbus/graphs/contributors"><img src="https://opencollective.com/node-red-contrib-modbus/contributors.svg?width=890&button=false" /></a>

### Financial Contributors

Become a financial contributor and help us sustain our community. [[Contribute](https://opencollective.com/node-red-contrib-modbus/contribute)]

#### Individuals

<a href="https://opencollective.com/node-red-contrib-modbus"><img src="https://opencollective.com/node-red-contrib-modbus/individuals.svg?width=890"></a>

#### Organizations

Support this project with your organization. Your logo will show up here with a link to your website. [[Contribute](https://opencollective.com/node-red-contrib-modbus/contribute)]

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