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Hi everyone,   I am currently programming a machine using a Compact GuardLogix 5380, PanelView 5310, and a Festo drive. I am using the tag based alarm in the PLC. I would like to know if there is a way to read in the PLC when the acknowledge button is pressed in the HMI? I added the HMI in the I/O configuration of the PLC. It adds a tag with two Booleans. I looked up creating a XIO in a routine if I could read the acknowledgement on a tag such as ::THIS.@AlarmSet…. But the only Boolean available indicates if there is unacked alarms. Why do I want to do this? I am using a Festo drive. In the exchange table there is a fault active bit and a reset drive bit. If there is a fault on the drive I want to raise an alarm and acknowledge it in the drive at the same time as the acknowledge button is pressed on the HMI.   Similarly, is there a way to read from the PLC the login level or user active on the HMI? I remember it was possible to read the active page number. It was even possible to open a page by giving its number to a tag.   Any clue would be appreciated. Cheers.