I'm seeing this exact issue on my power clipper. It has started happening since I factory reset the configuration.
I have yet to work out which setting(s) are responsible but intend to spend time on this next week.
________________________________
From: [email protected] <[email protected]> on behalf of Davis, Mark via Tech-talk <[email protected]>
Sent: 29 April 2019 21:02:57
To: [email protected]
Subject: Re: Coordinated motion of slits
Hi George,
Does it work properly with motor records mapped to the actual motors?
I had this problem early on when first working with the Power Brick controller where I had one motor record per motor (no coordinate systems involved), and eventually someone figured out that I needed to set the InPosBand value for each motor to a small (non-0) value to get the controller status to indicate when the last motion completed.
If, in addition to the motor records mapped to the coordinate axes, you have a motor record mapped to each motor, and THEY show that the motion of each motor has completed, then that is probably NOT the problem.
NOTE: I don't remember exactly where it was, but I just last week I read something (I THINK it was in one of the Power PMAC manuals, but it MIGHT have been about the driver, or even the EPICS Model 3 motor interface) that specified which (few) values that are available for actual motors that were also supported for coordinate system axes. I don't remember if it included the movement-completed status or not, but that is something else to look at.
Hopefully I will have time this week to catch up with where you are at and then there will be one more person looking at the problem.
Mark
Mark Davis NSCL/FRIB Control Systems Software Engineer [email protected]<mailto:[email protected]>
On 4/29/2019 3:13 PM, George Nicolas Kontogiorgos via Tech-talk wrote:
Hi all,
I am working on a slit setup controlled by Power PMAC using EPICS too. By now I could create a virtual axis as Wayne mentioned on cmd and substitutions files and I can drive the motors using the kinematics transformation on delta tau. The setpoints and readbacks are working fine.
My problem is after the first movement, I can’t perform another movement without resetting my IOC or manually stopping movement with SPMG value. I think that the problem is with DMOV, which never return to one (stopped condition) and do not allow another movement. Should I map this variable on my PLC or motion programs? If so, how could I do that?
Thanks a lot
Best regards
George Nicolas Kontogiorgos
Electrical Engineer
Beamline Software Group (SOL)
Brazilian Synchrotron Light Laboratory (LNLS)
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