We retrieve daily values from flow computers and totalizers via an OPC DA interface. The tags are configured as advise tags. When the values are not changing at the end of the day the OPC DA interface didn't send an new value. Is it possible to retrieve a value when the values hasn't changed? In my opinion ExcMax and CompMax will not work, because there you specify a number of seconds after receiving the last value and not from a specific time (eq. midnight).