Re: channel and pv deadband

["Mezger Anton Christian \(PSI\) via Tech-talk" <tech-talk at aps.anl.gov>]

Hi Michael,

many thanks. I tested it out with the changes in dbnd.c and it works perfectly well.

epics is great!

best regards

Anton

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From: Michael Davidsaver <mdavidsaver at gmail.com>
Sent: Sunday, October 3, 2021 5:18:59 PM
To: Mezger Anton Christian (PSI)
Cc: EPICS tech-talk; Johnson, Andrew N.; Ralph Lange
Subject: Re: channel and pv deadband

 

On 10/3/21 2:28 AM, Mezger Anton Christian (PSI) via Tech-talk wrote:
> ... Should not the real value 0 then be given later from the monitor when 0 is written?

It should, but until recently this wasn't possible.  A filter
did not have access to the event mask (DBE_*), and so could
not distinguish DBE_VALUE from DBE_VALUE|DBE_ALARM.

This is now possible.  If you would care to test:

https://github.com/epics-base/epics-base/pull/204