Re: Phytron Phymotion reset on IOC boot

[Torsten Bögershausen <torsten.bogershausen@esss.se>]

Hej Nilson,
good to hear that there is progress.

The missing .RBV update may be fixed in monster commit:

<https://github.com/EuropeanSpallationSource/motor/commit/abaf485143b5be60ae93338ceb45412f1da39e99>

This includes different changes to improve asyn-ish motors,
and works here for our controllers.

You can try to integrate that into your version,
or take it "as is" and integrate your changes.

/Torsten



On 02/02/18 10:00, Nilson Pereira wrote:
> Hello Torsten,
>
> Sorry for the delay. Thank you very much for the advice.
>
> Your solution worked. The controller does not reboot as expected by not
> sending the "reset" command and it connects without problems.
>
> The only issue that I noticed is that the .RBV values does not update
> after reboot. Everything comes back to normal if I try to move a motor
> or just process the motor record by sending the 1 to .PROC. Any idea why?



> I will take a look into that, but it is safe to say that my original
> problem is solved.
>
> Thanks for the quick fix.
>
> Answering your question about why booting the IOC: we are still under
> development phase and I am trying the best combination of initial and
> autosave settings for those records to guarantee a successful come back
> in case of future issues/reboots. Any shared expertise will be highly
> appreciated :)
>
> Best,
>
> Nilson
>
>
> On 01.02.2018 07:51, Torsten Bögershausen wrote:
> > Hej Nilson,
> > I don't have a Phytron controller, so I can't test.
> > But trying to be helpful:
> >
> > You can actually try t remove the reset command in the driver.
> > motorApp/PhytronSrc/phytronAxisMotor.cpp
> >
> > Remove these lines:
> >
> >     //RESET THE CONTROLLER
> >     sprintf(this->outString_, "CR");
> >     phyStatus = sendPhytronCommand(this->outString_, this->inString_,
> > MAX_CONTROLLER_STRING_SIZE, &response_len);
> >     if(phyStatus){
> >       asynPrint(this->pasynUserSelf, ASYN_TRACE_WARNING,
> >             "phytronController::phytronController: Could not reset
> > controller %s\n", this->controllerName_);
> >     }
> >
> >     //Wait for reset to finish
> >     epicsThreadSleep(10.0);
> >
> > And see what is happening ;-)
> >
> > Out of curiosity:
> > Why do you need to reboot the IOC ?
> >
> >
> >
> >
> >
> > On 31/01/18 11:48, Nilson Pereira wrote:
> > > Dear all,
> > >
> > > I have a Phytron stepper controller (I1AM01) with 16 axis with
> > > incremental encoders, and I using EPICS Motor module to control all axis
> > > since it supports this controller.
> > >
> > > I noticed that the IOC for that specific model resets the controller on
> > > connection (IOC boot). The reset erases the count on all encoders
> > > forcing me to "home" all 16 axis again every time I have to reboot
> > > the IOC.
> > >
> > > Is there a way to avoid this controller reset at IOC boot time to avoid
> > > loosing the encoder counts? Anyone using this controller that could help
> > > me with the settings?
> > >
> > > Versions:
> > >   - EPICS Base R3.15.5
> > >   - asyn R4.31
> > >   - autosave R5.7.1
> > >   - motor-R6-9
> > >
> > > Best regards,
> > >
> > > Nilson
> > >
> > >
> > > ________________________________
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>
> ________________________________
>
> Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
>
> Mitglied der Hermann von Helmholtz-Gemeinschaft Deutscher Forschungszentren e.V.
>
> Aufsichtsrat: Vorsitzender Dr. Karl Eugen Huthmacher, stv. Vorsitzende Dr. 
> Jutta Koch-Unterseher
> Geschäftsführung: Prof. Dr. Bernd Rech (kommissarisch), Thomas Frederking
>
> Sitz Berlin, AG Charlottenburg, 89 HRB 5583
>
> Postadresse:
> Hahn-Meitner-Platz 1
> D-14109 Berlin
>
> http://www.helmholtz-berlin.de