Experimental Physics and
Industrial Control System

Gabriel Fedel via Tech-talk <tech-talk at aps.anl.gov> · Tue, 18 Jul 2023 11:11:45 +0200

Hi Florian,

I'm not sure about Phoebus, but you could solve this on IOC level using

one acalcout record

(https://epics-modules.github.io/calc/aCalcoutRecord.html), and the

function SUM. This way you could have a new PV that will have the sum

you are looking for.

Cheers
Gabriel

On 7/17/23 09:13, Florian Feldbauer via Tech-talk wrote:

Hey all,

I have a short question on Phoebus:

I have an array PV of uint32's. Each element represents an error counter

for a single channel.

For an overview OPI of our system, I'd like to have a Text Entry widget

displaying the sum of all elements of our array for each device.

Looking at the Documentation [1] I see a lot of formulas in Phoebus for

arrays, but it seems none for calculating the sum of the elements.

I know it could be done via a script, but I was wondering if there is

also another way (e.g. formulas).

Cheers,
Florian

[1]

https://control-system-studio.readthedocs.io/en/latest/core/formula/doc/index.html

--
Gabriel Fedel
Embedded Software Developer  / Integrated Control System Division

European Spallation Source ERIC
P.O. Box 176, SE-221 00 Lund, Sweden
Visiting address: Partikelgatan 2, 224 84 Lund
Mobile: +46 72 179 23 01
E-mail: gabriel.fedel at ess.eu
ess.eu

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System