No quit for alarm
The system is 800xA V6.0 with advant connection. I have read the event sets from an old OS and put them into the PU410. All the process alarms that come into 800xA are blinking but don't have a quit availible. The system alarms are ok.
Not all permutations of AL_TOBLK, AL_FRBLK and PERSISTB are allowed in System 800xA.
Read about supported permutations in the Event Treat section of the 800xA for Advant Master Configuration User's Guide.
System 800xA is not fully compatible with what you could accomplish in previous versions of ABB HMI. The biggest contributing factor is OPC AE compliancy - previous HMIs were not compliant; to become OPC AE compliant some permutations had to be removed.
This is typically the case when the Alarm Acknowledge check box is not presented in an alarm list for 800xA for Advant Master.
Try selecting Event Treat 3 or 4 on an MB300 AI. If this gives acknowledgement possibility your custom event treat configuration is not supported. Please check above referenced table for supported configurations of event treat.