I was asked if there was a way to get a notification from PI when a certain tag starts having bad values. This tag is used to monitor the communication with a PLC. If the PLC loses the communication, we have bad values ("No Data" or other digital state).
I created an Event Frame that looks like this (see attached). Basically, as soon as the PI Tag will send a bad value, the event frame will start and it will end when the value is back to normal.
I was wondering how to capture the start time of the event in an Attribute. In addition to receiving a notification, the user would like to display the last time a Event of that sort happened.
Thank you for your help,