Experimental Physics and
Industrial Control System

Mark Rivers via Tech-talk <tech-talk at aps.anl.gov> · Sun, 14 Feb 2021 12:58:03 +0000

Hi Abdalla,

At the APS most of us are using Aerotech air-bearing rotation stages and Aerotech Ensemble or A3200 NDrive drivers. We use the Position Synchronized Output (PSO) from these drives to trigger the detector while doing continuous rotation.

You may be interested to know that we have recently developed a Python package called tomoscan that uses EPICS PVs to control all aspects of the tomography data collection.  It is easily adapted to different cameras and motion hardware.

https://github.com/tomography/tomoscan

https://tomoscan.readthedocs.io/en/latest/

Assuming that there is not an existing EPICS driver, you will need to write one.  Which specific Gold ServoDrive model do you have.  Do you have the documentation for how to control it via a socket?  This link seems to suggest that they provide a .NET library, which would be only for Windows.

https://www.elmomc.com/products/application-studio/download-resource-center/

They also mention EtherCAT.  Do they provide way of controlling it over TCP so it can easily be run from Linux?

Mark

________________________________
From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Abdalla Ahmad via Tech-talk <tech-talk at aps.anl.gov>
Sent: Sunday, February 14, 2021 4:35 AM
To: tech-talk at aps.anl.gov
Subject: ELMO motion control using EPICS

Hello community

Is there an EPICS driver for the ELMO motion controller? specifically the Gold ServoDrive series? This motion controller will control the air bearing stage of the tomography beamline.

Best regards
Abdalla

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System