Contents
Cirrus Link Resources
Cirrus Link Website
Contact Us (Sales/Support)
Forum
Cirrus Link Modules Docs for Ignition 7.9.x
Inductive Resources
Ignition User Manual
Knowledge Base Articles
Inductive University
Forum
Page History
...
| Note |
|---|
For ease of control we recommend setting a Primary Host ID in both MQTT Engine and in the MQTT Transmission. Removing the Primary Host ID from MQTT Engine will simulate the primary backend application going offline and cause MQTT Transmission to store data to the History Store. Restoring the Primary Host ID to MQTT Engine will simulate that the primary backend application is online and cause MQTT Transmission to flush the stored data. |
In this example, I have a History Store set up with 30,000 tags for both Edge Node and Device Tag Capacity
At the Edge, I have 10 tags associated with the Edge Node, 20 tags associated with Device 1 and 8 tags associated with Device 2. Whilst fully connected, the Transmission Info > History Store folder looks as below:
Once I remove the Primary Host ID from MQTT engine, we can see the metrics update real time
| View file | ||||
|---|---|---|---|---|
|
Overview
Content Tools