Experimental Physics and
Industrial Control System

Michael Davidsaver via Tech-talk <[email protected]> · Wed, 6 Nov 2019 09:19:38 -0800

On 11/6/19 4:48 AM, Lucas Russo via Tech-talk wrote:
> Hi again,
> 
> As a workaround to the problem I FLNK'ed the "waveform" record to an "ai" record that fetches its .NORD value. The "ai" send the monitors correctly and I can monitor them from the other IOC.

This was a common workaround with Base 3.14.x, which shouldn't be necessary with later versions.
Between this, and better handling by CA of array size changes, I find it unnecessary these days.

waveformRecord was fixed in 3.15.0.1 by [1] and for other record types in Base
by [2] in 3.15.6 (also changes waveformRecord slightly to post a monitor only
when NORD changes).

[1] https://github.com/epics-base/epics-base/commit/037e5f6a9def88cc5e1422788999fe3299c24c31

[2] https://bugs.launchpad.net/epics-base/+bug/1730727
    https://github.com/epics-base/epics-base/commit/ec351c5e2f995770b3fc6788b63cf76990fbb2f3

> Cheers!
> 
> Lucas
> 
> 
> 
> On Thu, Oct 31, 2019 at 7:51 AM Lucas Russo <[email protected] <mailto:[email protected]>> wrote:
> 
>     Hello everyone,
> 
>     I've been trying to use the .NORD field value to trigger a change in a subArray record. I'm doing it like this: https://github.com/lnls-dig/tune-epics-ioc/blob/master/tuneApp/Db/tune.db#L519
> 
>     And the waveform I'm monitoring from is this one: https://github.com/lnls-dig/rsfsx-epics-ioc/blob/master/rsfsxApp/Db/rsfsx.db#L1670
> 
>     I can see that the Trace-Mon record is correctly sending monitors on the .VAL field. Also, the value of .NORD changes correctly as well, but it's just not sending any monitors (tested with camonitor).
> 
>     I'm using epics base 3.15.5. From the release notes it seems this has been fixed in 3.15.0.1.
> 
>     Am I missing something here?
> 
>     Thanks a lot!
> 
>     Lucas
> 
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System