Experimental Physics and
Industrial Control System

Tong Zhang via Tech-talk <[email protected]> · Thu, 21 Mar 2019 10:48:37 -0400

Hello,

As you can see from the attached screenshot, the warning messages from

ca module of pyepics happened when I was doing tasks described as below:

1. I created many epics.PV objects (few hundreds to a thousand);
2. Capture all the readings from these created PV objects in a for loop.

It looks like I can use caget_many(<PV list>) to achieve the goals, but

the whole logic needs to be well refactored, so what if I want do this

in the for-loop way, how can I avoid this UserWarnings, anyone can help

me understand this issue?

Thank you,
Tong

Screenshot from 2019-03-21 10-07-45.png

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System