One tag in UDT has a Bad Quality

[pturmel]

You will need access to the code. If the param is InOut, you can simply point at the real source of that data. If the AOI member has External Access == None, you simply cannot read that member. You should also look at this discussion of AOIs:

Cannot read some tags inside Rockwell AOI

I am trying to see tags inside an AOI. I went back to basics and dragged and dropped the tags from the OPC browser into the Tags Folder, but the quality is bad and there is a red x next to them. What is more confusing is that some are working and some are not. I cannot see any similarities between the few that aren’t working. Data type, In and Out types are working and not working. I can create a new UDT as an In/Out but this seems cumbersome. In this case, I would need to create tags only fo…