node-red-contrib-cip-st-ethernet-ip 2.0.2
A Node-RED node to interact with Allen Bradley / Rockwell PLCs using the EtherNet/IP Protocol
node-red-contrib-cip-ethernet-ip
A Node-RED node to interact with Allen Bradley / Rockwell PLCs using the EtherNet/IP protocol. Based on the awesome work of cmseaton42/node-ethernet-ip.
This node was created as part of the ST-One project.
Install
You can install this node directly from the "Manage Palette" menu in the Node-RED interface.
Alternatively, run the following command in your Node-RED user directory - typically ~/.node-red
on Linux or %HOMEPATH%\.nodered
on Windows
npm install node-red-contrib-cip-ethernet-ip
NodeJS version 10 or greater and Node-RED version 1.0 or greater is required.
Usage
Each connection to a PLC is represented by the ETH-IP Endpoint configuration node. You can configure the PLC's Address, the variables available and their addresses, and the cycle time for reading the variables.
The ETH-IP In node makes the variable's values available in a flow in three different modes:
- Single variable: A single variable can be selected from the configured variables, and a message is sent every cycle, or only when it changes if diff is checked.
msg.payload
contains the variable's value andmsg.topic
has the variable's name. - All variables, one per message: Like the Single variable mode, but for all variables configured. If diff is checked, a message is sent everytime any variable changes. If diff is unchecked, one message is sent for every variable, in every cycle. Care must be taken about the number of messages per second in this mode.
- All variables: In this mode,
msg.payload
contains an object with all configured variables and their values. If diff is checked, a message is sent if at least one of the variables changes its value.
Disclaimer
The Software is provided "AS IS", without warranty of any kind. The Licensor makes no warranty that the Software is free of defects or is suitable for any particular purpose. In no event shall the Licensor be responsible for loss or damages arising from the installation or use of the Software
Bugs and enhancements
Please share your ideas and experiences on the Node-RED forum, or open an issue on the page of the project on GitHub
Support
Community support is offered on a best-effort basis via GitHub Issues. For commercial support, please contact us by sending an e-mail to [email protected].
License
Copyright: (c) 2016-2020, ST-One Ltda., Guilherme Francescon Cittolin [email protected]
GNU General Public License v3.0+ (see LICENSE or https://www.gnu.org/licenses/gpl-3.0.txt)