I am seeing a behavior in the system where if the tag binding breaks (showing red broken binding) for some reason (low pull rate from the client, time-out, etc.), it doesn’t get refreshed automatically. When a user re-navigates to that screen, binding seems to be refreshed. Any idea ?
I am using 8.0.17
Any help is appreciated,
Thanks.
I’m seeing a similar behaviour. v8.1.9
However the overlays disappear in a couple of seconds
Running 14 Omron PLCs (NJ driver) at a total of ca 50000 tags (ca half of which is polling at 1/sec)
Have not yet managed to figure out what is the root cause… Possibly it is a timeout issue in the PLC is my best guess
There were a number of changes to binding initial value handling that caused this sort of thing. I thought it was fixed by 8.1.9, but might have been more recent. Also, with a very heavy tag load on an unoptimizable driver, you might also get stale timeouts before the first value arrives.