I’m using Ignition 8.3.3 and we have very similar tags between plc projects. I had gotten tags off a plc we use to develop code. A co-worker had added some new tags to our existing tags and put them on a new CompactLogix 5069-L320ER running v37. I connected to the PLC and tried browsing for the new tags, but could not find them. When I put them in manually to my UDT, the tags were read correctly so I can go that route, but I was wondering why the tag browser doesn’t work.
If you can read them manually then the driver must know about them.
Give us more information - screenshots from Ignition browse, screenshots of the tags in Studio 5000, UDT def, datatypes, anything.
Ignition won't automatically make any tags for you when the PLC changes. You are responsible for that.
If the tag doesn't show up in the OPC Browser, after refresh, then there might be a problem.
(What you show suggests someone dragged and dropped the entire processor's OPC items to make Ignition tags. This is a newbie mistake that will crush your comms performance.)
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My screen shot of the browser is in the Allen Bradley tag browser in Ignition. I’ve never had to define tags in the OPC Browser before.
How did your _AllenBradley_ folder of tags come to exist in the Ignition Tag browser? Tag creation in Ignition is never automatic. It looks like a drag-n-drop from Ignition's OPC browser, right down to the driver's diagnostics and virtual folders. (Don't do that.)
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Ah. I did that back when I was learning Ignition. Somehow I thought that the link between the Allen Bradley and Ignition would auto update. More specifically I assumed that new tags in Allen Bradley would show under the Allen Bradley tag section. I see now that it doesn’t.
You should delete all the tags you aren't actually using, to free up the comms to your PLC. Add tags in Ignition when you actually need them. Also, it is best to not limit yourself to the PLC's folder/type structure. Make Ignition tag folders and subfolders, and rename tags, as needed to support parameterized user interfaces.
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I use my UDTs exclusively for HMI development, but I will try to prune down the PLC tags I don’t need.
edit: I deleted the AllenBradley folder. Thanks for your help.
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