Experimental Physics and
Industrial Control System

Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov> · Tue, 23 Apr 2024 07:56:46 -0700

On 4/23/24 00:07, whitetiger1123 via Tech-talk wrote:

We are currently using Altekna's watt pilot and controller. In order to use this in epics, we made python code to communicate with epics, and we checked it works.

But here we got a problem. If we move the motor often, epics will have a problem where it accepts and does not accept commands. For example, if you move the motor often, epics will be disconnected, and you have to manually turn the controller off and then run Python code to run epics again.
Can anyone solve this problem? I want to know what kind of problem it is.

Perhaps someone who knows the caproto server python module will comment.

If this were one of the PVA or CA server modules I have used, then I would
suspect that blocking I/O with the moter controller was happening on a
shared thread, preventing network I/O.

EPICS Base : R3.16.1

OS : NAME="Rocky Linux"

VERSION="8.8 (Green Obsidian)"

Linux version 4.18.0-477.27.1.el8_8.x86_64 (gcc version 8.5.0 20210514 (Red Hat 8.5.0-18)

PS. I’m also attaching the code.

https://urldefense.us/v3/__https://github.com/whitetiger112233/watt__;!!G_uCfscf7eWS!bcoJk9XJJIbo4uHVkHOBOQaHvnD_PmM3H-m9QwaZivH-7j4UV-g3hNs3NpzhHSPaHiI91Syt_-ICVapxGJ5dHWZU9g$  <https://urldefense.us/v3/__https://github.com/whitetiger112233/watt__;!!G_uCfscf7eWS!Yg26To4MKrSZN8_khB9V1QCq3kuHG-EPbjZdTM-1ryfD5wGJomSobBedP2vYxYufDqi_A_CNGtEt1bnbdZKDukRdqUg$>

This is my GitHub, you guys can watch about my python code.

Please anyone watch and give me some advice..

Sincerely,

Baeg

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System