Fw: Count record that resets by date

["Mooney, Tim M. via Tech-talk" <tech-talk@aps.anl.gov>]

Tim Mooney (mooney@anl.gov) (630)252-5417
Beamline Controls Group (www.aps.anl.gov)
Advanced Photon Source, Argonne National Lab

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From: Mooney, Tim M.
Sent: Wednesday, March 13, 2019 4:49 PM
To: Daniel Cuneo
Subject: Re: Count record that resets by date

 

There's certainly a way to do this with base, but on an APS beamline, I would do it like this:

devIocStats maintains a time-of-day string PV, here called xxx:TOD, which updates every second.  When the _expression_ xxx:TOD=="00:00:00" changes value, the string calc writes that value to the calcout record's B field, and causes it to process.  This sets the calcout record's VAL field to -1 when TOD=="00:00:00", and then to 0 when TOD=="00:00:01".  Otherwise, the calcout record's VAL field increments whenever it's processed.

Tim Mooney (mooney@anl.gov) (630)252-5417
Beamline Controls Group (www.aps.anl.gov)
Advanced Photon Source, Argonne National Lab

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From: tech-talk-bounces@aps.anl.gov <tech-talk-bounces@aps.anl.gov> on behalf of Daniel Cuneo via Tech-talk <tech-talk@aps.anl.gov>
Sent: Wednesday, March 13, 2019 4:07:09 PM
To: tech-talk@aps.anl.gov
Subject: Count record that resets by date

 

Hi all,

I'd like to create a database record that counts based on a forward link. This record would need to reset back to zero 

at 12AM every day. 

Use case, is where a beam line user hits a reset button repeatably (tied to a bo record) as a work around for something that is broken.

I'd like to track these resets.

Is there a way to do this with base?

I'm considering writing a C subroutine for this is it doesn't already exist.

Cheers!

dpc

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