Node-RED Code Samples

These examples will help you get started using Node-RED with your Opto 22 controller.

• Subscribe and Publish with MQTT Nodes, groov & SNAP PAC
  • Shows how to acquire data over MQTT using Node‑RED, groov, and a SNAP PAC R- or S-series controller
• Read and Write to Opto 22 I/O
  • Shows how to read and write to Opto 22 digital I/O modules
• Get WAN IP Address
  • A one-step method to get a controller’s WAN IP address and write it to a tag in PAC Control
• Using Conditions in a Flow (Switch Node)
  • Uses a switch node to perform an action based on the value of a property

For more samples and tips, visit:

• OptoForums Node-RED
• OptoForums Code Samples and Tips