Some machine failure can make a bunch of alarm ON. How to interlock these alarm with a main alarm.
For example if a HT power failure happens in a machine, it pops up 'HT power failure alarm' as well as several sensor alarms(in the machine), to avoid this we need to interlock these sensor alarms with 'HT power failure alarm'. So that if a HT power failure occurs the sensors neither pop up its alarm nor record its alarm in log list. Only 'HT power failure alarm' pop up and recorded in the log list.
How can we do it in PcVue?
Hi,
There is exactly what you need in PcVue.
The relevant topic in the online help is named 'Configuring Alarm Masking'.
You can do what you need by configuring your alarms to be masked by (another) bit variable. The same bit variable can be used to mask dozens or hundreds of alarms as per your requirement.
When your masking bit turns True, your masked alarms will turn 'Masked by dependency'. It all plays on the status/quality (not the value).
The game is also to configure filters on alarm viewers correctly (and data export if any) to make sure the alarm list for 'regular' users do not display such masked alarms (you exclude them). But maybe you show them to 'maintenance' users or another profile of users.
It also should play nice in conjunction with user masking (of individual alarms), and masking by program.
It is a very long time since I played with it, but no doubt someone from the tech support will pick up and help you if needed.
Hope this helps


