Experimental Physics and
Industrial Control System

Florian Feldbauer via Tech-talk <tech-talk at aps.anl.gov> · Thu, 10 Jun 2021 12:00:31 +0200

Hey all,

I have a question regarding waveform records. So far I never really

worked with waveform or any other array-type record.

The Situation is:
- Our DAQ collects the data coming from our Pixel sensor.

- Every 10s an IOC reads the stored data and fills a waveform record

with the hits (index of array = pixel, value = number of hits in the run)

- I use an image widget in Phoebus to display the hit map of the pixel

sensor

Now, for testing the sensors after bonding, we can perform charge

injections to individual pixels. We can also mask individual pixels if

they are too noisy.

As we need to always send the information for all pixels to the sensor,

I thought about using a second waveform record holding the per pixel

configuration.

Using the cursor X/Y PVs from the image widget in phoebus I could select

a pixel I want to inject a charge for testing (or I want to mask b/c

it's noisy) and get calculate the index within the waveform record from

these two PV's using a CALC record.

So now my actual question: Let's say I want to mask pixel 42, is it

possible to just write to val[41] from my config waveform record from a

CALC(OUT) record without touching the other values of the array?

Cheers,
Florian

--
Ruhr-Universität Bochum
AG der Experimentalphysik I
Dr. Florian Feldbauer
NB 2/131 / Fach 125
Universitätsstr. 150
D-44801 Bochum

Office: NB 2/134
Phone:  (+49)234 / 32-23563
Fax:    (+49)234 / 32-14170
https://paluma.ruhr-uni-bochum.de

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System