Bad Tag Data in Ignition

Problem 1: Previously published MQTT tags remain in the tag browser

If you change the configuration on your RediGate after initially publishing tag names, you may see old tags in the tag browser:

Solution:

This has to do with the internal cache of tags that MQTT Engine keeps in order to change the state/quality of the tags when the RediGate loses it's connection. If you want the tag fully removed you will need to delete the tag and then restart the MQTTEngine module via the Ignition console:

• Delete old tag: 
• Restart MQTT Engine module: 

Problem 2: Inconsistency in the MQTT tags that are showing up under your RediGate object in Ignition

Solution:

You may need to adjust the MQTT settings in your ACE configuration. Changing the “RBE Data at Restart” property on the “Subscriptions” object so that it says “All data registers after SYSTEM-BIRTH” should address this issue. If your setting is “Only Non-Zero data registers after SYSTEM-BIRTH”, you will see a bunch of tags show up as red on Ignition: those tags have 0 values so they aren’t getting republished when the MQTT session reconnects.

This problem is particularly noticeable on RediGates with Verizon modems, as Verizon modems tend to reconnect to their local cell tower every ~24 hours or so.