E Series Fails GRIDview Update

Solution:

In one occurrence of this error a DO Device Tag had a 10 second Scan delay* but also had a 10 second Max delay*. This was found in View / Data Summary where this tag had unusually large number of records.

This explains the problem as this was sending the same data every 10 seconds 24-7. When the Tags were exported others were found. There is no reason that any tag’s  Max delay* should not be disabled.

A new csv with all Max delay* disabled was uploaded and the CE was rebooted. It then worked properly.