First off, the “unknown status” situation is a known issue. The group only sets its state when it executes, so it will sit like that until the first exec. We’ll try to get this fixed for 7.5.1.
Now, as for the null… since you say that they don’t update in the UI either, I suspect something is going on with the subscription. The opc subscription is a bit tricky with scheduling, because if you don’t have a range in your schedule, the rate box isn’t editable. In this case, the group is supposed to manually read- although now that I take another look, this appears to not quite be true right now.
I can deal with an unknown status… thanks for letting me know…
What I was doing before is an always run expression item looking for the time to trigger in a Historical Group. This always worked fine.
To use the built in scheduling, I made a standard group and copied the tags from the historical group into it and set the scheduled times. These tags, which were properly displaying values in the historical group, are what gave me the problems in the standard group with scheduling turned on…