OPC Disconnects and long read/write periods

[witman]

Not a white paper, but this thread has some good info (don't stop at first post):

Difference Gateway Event vs Tag Event Scripts

I have already seen some posts on this topic, but none of them answered my questions. I want to monitor tag changes and react to them. This monitoring has to be robust (It is a heartbeat. I added some margin and can handle some lost events, but if I regularly loose events this will cause alarms all the time) Now there are 2 ways to do this: Tag Change scripts in Gateway Events I really like this solution because all the scripts are in the project scope. They are all in one place, easily ma…