Experimental Physics and
Industrial Control System

Hi -
We're setting up an alarm handler tree, and plan to use the FORCEPV feature for temporarily disabling alarming for branches of the tree.  All is working wonderfully.
  
Except...when I start a new alarm handler display while a group FORCEPV has been previously set to forceValue (i.e. group disabled).  The group mask of the disabled group is set to the proper force mask at startup, but its alarm severity on the display and the alarm severities of the parent groups still show an alarm state.  The only way the group severity gets set properly is to change its FORCEPV to resetValue, and then back to forceValue.  I.e., the FORCEPV for a group is only picked up upon transition from resetValue to forceValue while alh is running, not at alh startup.

Is there a way to trigger the proper group alarm severities at startup?  

I did notice that the force severity at startup works properly at the channel level.

Sorry if I've missed something really obvious!

thanks for your help,
Judy, et al at SLAC

Replies:

Re: alarm handler question: group FORCEPVs and severities at alh startup Brian Bevins

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