Re: What is the valueAlarm.active field?

[Michael Davidsaver via Tech-talk <tech-talk@aps.anl.gov>]

On 12/2/25 3:06 PM, David Bracey via Tech-talk wrote:

What is the “valueAlarm.active” field?

A leftover in a specification document which was written without a clear statement of how it would be used.  So it has not been.

  Is it backed by any database field?

No.

fyi. you can tell this by passing 'pvget -vv' and noticing that 'active' is not shown, meaning that the server never pushes a value for this field.  When a server does not push an initial value for a field, it will probably never push any value.

 -m -vv:            Monitor in Raw mode.  Highlight fields marked as changed, show all valid fields.

 

 

dbracey@somebox:~$ pvget -v dbracey:xxxExample

dbracey:xxxExample epics:nt/NTScalar:1.0 

  double value 0

  alarm_t alarm MAJOR DEVICE LOLO 

    int severity 2

    int status 1

    string message LOLO

  structure timeStamp

    long secondsPastEpoch 1764694785

<SNIP>

    double minStep 0

  valueAlarm_t valueAlarm

    boolean active false

    double lowAlarmLimit 2

    double lowWarningLimit 4

...