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node-red-contrib-s7comm

A Node-RED node to communicate with Siemens S7 PLCs.

Version: 1.1.6Weekly Downloads: 4,170Author:SEUpdated: Feb 18, 2026

node-red-contrib-s7comm

A Node-RED node to communicate with Siemens S7 PLCs.

About


The Hilscher Node-RED node-red-contrib-s7comm node is designed to communicate with a SIMATIC S7-300/1200/1500 PLC of SIEMENS based on the RFC1006-communication protocol. The S7comm node can build up a connection with the SIMATIC-S7. Furthermore it can Read/Write Addresses of the PLC with specific S7-Datatype.

It is using the Open-Source Library nodeS7 as its Framework which is able to handle the communication with the PLC. Special thanks to plcpeople for creating nodes7.

Install


Install the node directly from the management palette of Node-RED.

or run the following command in your Node-RED user directory (typically: %HOMEPATH%.nodered for Windows or ~/.node-red for Linux ):

    npm install node-red-contrib-s7comm

or clone the repository within a specific folder in the Node-RED user directory and run the package.json:

    git clone https://github.com/Hilscher/node-red-contrib-s7comm

    cd node-red-contrib-s7comm

    npm install

Getting Started


See USAGE.md for more details.

Contributing


Patches/Pull-requests are always welcome. For simple typos and single line fixes please just raise an issue pointing out our mistakes. Clearly describe the issue including steps to reproduce when it is a bug.

For further help, or general discussion, please use the Node-RED mail group on GoogleGroups.


Copyright 2017, Hilscher Gesellschaft für Systemautomation mbH, under the MIT license.

Additional Resources


Installation

Install in Node-RED via the palette manager.

Node-RED Palette Manager dialog with the node selected and the Install button visible.

Quick Stats

Current Version1.1.6
Weekly Downloads4,170
First PublishedMar 28, 2017
Last UpdatedFeb 18, 2026

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