Experimental Physics and
Industrial Control System

"Konrad, Martin" <[email protected]> · Thu, 29 Aug 2013 18:26:40 +0000

Hi Kevin,
thanks for your detailed explanation of these issues. That in mind, I 
was looking into the behavior of my system again and discovered another 
problem regarding DMOV/DINP:

I need to be able to do the following types of writes to the soft motors:
1. write to soft motor 1
2. write to soft motor 2
3. open gate and write to soft motor 1 immediately followed by a write 
to soft motor 2 (a fanout record triggers two output records to write to 
both soft motors "at the same time")

I also need to be able to directly adjust the real motors:
4. write to real motor 1
5. write to real motor 2

When I implemented the gating logic I thought

realMotor1.DMOV && doneMovingGate_

would be enough. But this does not behave correctly in case 5. So I 
changed it to

realMotor1.DMOV && realMotor2.DMOV && doneMovingGate_

as suggested by Tim 
(http://www.aps.anl.gov/epics/tech-talk/2008/msg00127.php). I think it 
would be worth to compare my implementation with Tim's probably a bit 
more thoroughly tested one.

Regards,

Martin

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System