Experimental Physics and
Industrial Control System

George Nicolas Kontogiorgos via Tech-talk <[email protected]> · Thu, 2 May 2019 18:05:25 +0000

Hi Giles,

I could solve the problem od DMOV not returning to stopped status by changing the condition on callback function on pmacCSController.cpp. There is a if that compare type with pmacMessageBroker::PMAC_PRE_FAST_READ (the values are 2 and 3 respectively) and the result is false. It results that the code inside this if (which get the coordinate system status) is never executed. As consequence, EPICS can not get CS status and DMOV never come back to stopped state.

To solve the problem I supposed that we are talking about a fast read, not pre fast read (the difference is that they have the same rate but variables on pre are read  first, according to comments on pmacMessageBroker.cpp) since the variable type has value 2.

After this modification DMOV work fine, since status is being refreshed. 

I did a pull request on dls repo in order to fix this issue. Feel free to suggest better modifications.

Hi Mark,

After all this studies I figured out that DMOV or MOVN doesn't need to be mapped manually, this is made by program itself (the system polls the status). 

I could solve the problem of slits at all by Wayne method.

Regards 
George

-----Mensagem original-----
De: [email protected] <[email protected]> 
Enviada em: terça-feira, 30 de abril de 2019 04:07
Para: George Nicolas Kontogiorgos <[email protected]>; Davis, Mark <[email protected]>
Assunto: Re: Pmac Slits

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 18:31:52
To: George Nicolas Kontogiorgos; [email protected]
Subject: Re: Pmac Slits

Hi George,

I haven't yet had a chance to try a configuration like one Wayne described (and Giles helped me understand).  Hopefully I will have time this week to give it a try.

The behavior you describe for the DMOV and MOVN does sound like an issue that needs to be addressed.

Are you also using a Delta Tau Power Brick (or some other Power PMAC model) controller as I am?

Regarding your Tech-Talk subscription:  I would expect that once you are subscribed, you should be able to include the Tech-Talk list email in your To or Reply-To list (we will see momentarily, as I included it in the To list for this email).

Mark

Mark Davis NSCL/FRIB Control Systems Software Engineer [email protected]<mailto:[email protected]>
On 4/29/2019 7:30 AM, George Nicolas Kontogiorgos wrote:
Hello Davis!

I am George and I and @Luciano Carneiro Guedes<mailto:[email protected]> are working with coordinated motion on a 2 motor slit controlled by PowerPMAC and integrated with EPICS (The same setup as you).

I saw your message on EPICS techtalk<https://urldefense.proofpoint.com/v2/url?u=https-3A__epics.anl.gov_tech-2Dtalk_2019_msg00684.php&d=DwMFAg&c=nE__W8dFE-shTxStwXtp0A&r=D7ZiziuMQuq40HlGYOZPBg&m=k7CLCJno5gjAruO8gtDsAKM9ugfmt3N1wib_vy4Mcn8&s=TuASR5lFnez6KMJ0vYQrq8TzXXQvv2A_q-ps57L7SFg&e=> and I would like to know you if your setup is running well.

Here we achieved  the point that we can drive a virtual motor using motor record as Wayne Lewis sad. The problem is that the DMOV (or MOVN) is not set to 1 (not moving) when all motors reach the setpoint specified by the kinematics.

I could not reply the message on techtalk because I subscribed on it after you send those messages (and I don't know if it is possible to reply now.)

Best regards
George Nicolas Kontogiorgos
Electrical Engineer
Beamline Software Group (SOL)
Brazilian Synchrotron Light Laboratory (LNLS) www.lnls.cnpem.br<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.lnls.cnpem.br_&d=DwMFAg&c=nE__W8dFE-shTxStwXtp0A&r=D7ZiziuMQuq40HlGYOZPBg&m=k7CLCJno5gjAruO8gtDsAKM9ugfmt3N1wib_vy4Mcn8&s=bn2OpbndTqv8qG1bvTHojoFLoD_4u5TpWmPDvtkn--s&e=>

Aviso Legal: Esta mensagem e seus anexos podem conter informações confidenciais e/ou de uso restrito. Observe atentamente seu conteúdo e considere eventual consulta ao remetente antes de copiá-la, divulgá-la ou distribuí-la. Se você recebeu esta mensagem por engano, por favor avise o remetente e apague-a imediatamente.

Disclaimer: This email and its attachments may contain confidential and/or privileged information. Observe its content carefully and consider possible querying to the sender before copying, disclosing or distributing it. If you have received this email by mistake, please notify the sender and delete it immediately.

--
This e-mail and any attachments may contain confidential, copyright and or privileged material, and are for the use of the intended addressee only. If you are not the intended addressee or an authorised recipient of the addressee please notify us of receipt by returning the e-mail and do not use, copy, retain, distribute or disclose the information in or attached to the e-mail.
Any opinions expressed within this e-mail are those of the individual and not necessarily of Diamond Light Source Ltd. 
Diamond Light Source Ltd. cannot guarantee that this e-mail or any attachments are free from viruses and we cannot accept liability for any damage which you may sustain as a result of software viruses which may be transmitted in or with the message.
Diamond Light Source Limited (company no. 4375679). Registered in England and Wales with its registered office at Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System