Table of Variables

[E1cid]

Not sure if i understand fully, but it sounds like you need to create a llok up table.

This can be done by creating a JSON with keys as device names and values as the information corresponding to the device. This can be stored in context storage as a global or in a database/textfile also.
Context would be easier and fairly simple.
https://nodered.org/docs/user-guide/context
Maybe this will help you with lookup table
https://www.reddit.com/r/nodered/comments/9q7v3n/how_to_create_a_lookup_table/

How to access a lookup table from ```Function``` Node

I am wondering where to begin if I want to access a lookup table on my computer (example .csv) that would have two columns and I could match up a know variable passing through a function node on the payload and assign a new variable to the payload after a match is made. For example my table has a column "ip address" and a column "location". I would fill out the table with the ip address and associated location, and as my function node runs, it will be able to output the location based on the i…