I have a few IoT setup at different sites, local Ignition edge running at site PC, talking to cloud Ignition gateway via MQTT.
For over the last 6 months, there are a few incidents when the site process values stop updating on the gateway, but ignition didn’t show any error or alarm. I will have to login local edge unit and refresh MQTT transmission control to get the connection back to normal.
Did anyone have the same issue before?
My question is:
- there’s no alarm/warning when the MQTT stopped refreshing the values. Is there any way to detect this abnormal connection?
- Anyway to prevent this issue from happening again?