What would cause very slow updates on a perspective screen?
I have a screen that is looking at tags on the same machine as the gateway and the value on the screen that has the tag binding takes about 60 seconds (57 to be exact). The tag itself updates in 2 seconds in the designer. The tag in question is an MQTT Engine tag.
Are all bound tags like this or just a select few? What is the client poll rate in the project's general properties set to?
The client poll rate is set to 250. They're all bound indirectly to MQTT Engine tags about 70 or so tags on a screen.
I'd say to start trying things like do a direct binding to one or 2 tags, bind to tags on a regular tag provider, etc to see if the issue is only with MQTT Engine tags, if it's the indirect binding, or if you can correlate the slowness to some particular setting/configuration. I've got a lot of tags coming from MQTT on a project, but I have tags in my regular tag provider that reference those MQTT tags in the MQTT Engine provider and I tag everyting on my screens to those referenced tags in my regular tag provider instead of direclty to MQTT Engine, but I wouln't think it should matter much.
Gotcha. There are some direct bindings.
There are some components bounded to reference tags and some to MQTT engine tags.
I found that reference tags take 30+ seconds to update in the designer even though the MQTT engine tags updates in less than 2 seconds.
I currently have 2 open tickets with tech support with problems with reference tags that could be related to this issue as well.