Experimental Physics and
Industrial Control System

"Peterson, Kevin M. via Tech-talk" <tech-talk at aps.anl.gov> · Fri, 2 Oct 2020 21:35:16 +0000

Guilherme,

My replies are below.

On 9/30/20 11:13 AM, Guilherme Jovanini Montagner wrote:
> Hello Kevin!
> Thanks a lot!! It worked!

I'm glad to hear that.

> Now I only have a problem that is the virtual encoder channel that I have setup on m11. Apparently EPICS is trying to control this motor, because I got following errors on the PMAC controller on axis 11, and also a DACLimit warning.
> Is it possible to disable m11 actuation?

The motor record should see that m11 is moving, even though the motor 
record didn't issue the command to start motion.  This results in the 
MIP field being set to 0x8000, which indicates an external move.  When 
the move is done, the motor record should sync the target position with 
the readback position.

It is likely that the problems are coming from the motor driver.  I'm 
not familiar with the pmac support, so I can't say what might be happening.

> Also, is there a lower limit to my RDBD value? I wanted to get it as low as 600nm
> Thanks!
> 

The mininum RDBD is the motor's MRES.

Kevin

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System