node-red-opcua-otmr 3.0.2

OPCUA communication

npm install node-red-opcua-otmr

Node-RED OPCUA-OTMR Node

The @omidteimoori/node-red-opcua Node-RED node allows seamless communication with OPC UA servers. It enables you to read, write, and subscribe to values from specific Node IDs — ideal for industrial automation and IoT applications.

Features

• Connect to any OPC UA server via customizable endpoint URL and port
• Read data from specific Node IDs
• Write data to OPC UA tags
• Subscribe to live changes
• Suitable for use in SCADA, MES, and Industry 4.0 projects

Installation

Run the following command in your Node-RED user directory (typically ~/.node-red):

npm install node-red-opcua-otmr

Then restart Node-RED. The node will appear in the function category as opcua-otmr.

Usage

1. Drag the opcua-otmr node into your Node-RED workspace
2. Configure:
   • Endpoint (e.g., opc.tcp://192.168.0.10:4840)
   • Node ID (e.g., ns=2;s=Temperature)
   • Operation: Read, Write, or Subscribe
3. Deploy the flow and monitor/debug results

Example Use Cases

• Real-time temperature monitoring from a PLC
• Writing setpoints to industrial devices
• Live dashboards for machine data

Author

Developed by Omid Teimoori
GitHub: omidteimoori

GitHub Repository

GitHub: node-red-opcua-otmr

NPM Package

https://www.npmjs.com/package/node-red-opcua-otmr