Experimental Physics and Industrial Control System
Guilherme,
It isn't possible to implement the closed loop control the way you
describe with just the motor record, but you can do it if you add other
EPICS records.
The epid record, which is in the std module, could be used for this purpose:
https://cars.uchicago.edu/software/epics/epidRecord.html
The fb_epid support in the optics module could also be used for this
purpose:
https://epics.anl.gov/bcda/synApps/optics/fb_epid/index.html
The motor being controlled in this way should have RTRY=0 and BDST=0,
since the both would interfere with the records closing the loop.
Kevin
On 9/30/20 1:14 PM, Guilherme Jovanini Montagner wrote:
> Hi Kevin and all.
> Is it possible to implement this closed loop in such a way that, whenever the motor is taken out of its initial position, EPICS commands it to move back to the original position? This is not happening in the current setup.
> Also, when I try to move, the RCNT increases up to ~50, and it takes a long time for the motor to reach the position RDBD deadband. Does arithmetic mode help here?
> Thanks again.
>
> Guilherme Jovanini Montagner
> +55 19 99806.9117
> +55 19 2517.8911
> guilherme at setup.com.br
>
> Labview Certified Developer
>
- References:
- Implementing closed loop on EPICS level Guilherme Jovanini Montagner via Tech-talk
- Re: Implementing closed loop on EPICS level Peterson, Kevin M. via Tech-talk
- Re: Implementing closed loop on EPICS level Guilherme Jovanini Montagner via Tech-talk
- Re: Implementing closed loop on EPICS level Peterson, Kevin M. via Tech-talk
- Re: Implementing closed loop on EPICS level Guilherme Jovanini Montagner via Tech-talk
- Re: Implementing closed loop on EPICS level Guilherme Jovanini Montagner via Tech-talk
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