Yokogawa Button Operated DX2000 - Manual (Page 122)

3-26
IM 04L42B01-01E
When the relay is set to AND logic
ACK ACK
Alarm A
Occurrence
Alarm B
Occurrence
Release
Release
Relay
Activated
Deactivated
Alarm B has occurred, so now all alarms have occurred.
This causes the relay to be activated.
3.12 Using the Alarm Annunciator Function (Release number 3 or later)