EPICS Home

Experimental Physics and Industrial Control System


 
1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  <2025 Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  <2025
<== Date ==> <== Thread ==>

Subject: Does P4P Support Channel Access (CA) with a Provider Flag?
From: "Kim, Kuktae via Tech-talk" <tech-talk at aps.anl.gov>
To: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Thu, 23 Jan 2025 16:00:00 +0000
Hello everyone,

I have a question about P4P and its support for Channel Access (CA) with a provider flag. The pvget command includes an option to select the provider, with 'pva' being the default.

Here’s an example:

$ caget IOC:IN20:EV01:IOC_CPU_LOAD  
IOC:IN20:EV01:IOC_CPU_LOAD     9.82578  

$ pvget IOC:IN20:EV01:IOC_CPU_LOAD  
Timeout  

$ pvget -p ca IOC:IN20:EV01:IOC_CPU_LOAD  
IOC:IN20:EV01:IOC_CPU_LOAD 10.2621  


I want to implement something similar using P4P, but I haven’t been able to find a way to do so. Could someone clarify this for me? Thank you for your help!

Best regards,
Kuktae




Replies:
Re: Does P4P Support Channel Access (CA) with a Provider Flag? Williams Jr., Ernest L. via Tech-talk
Re: Does P4P Support Channel Access (CA) with a Provider Flag? Michael Davidsaver via Tech-talk

Navigate by Date:
Prev: Re: Phytron support for EPICS motor (pull request #8) Lutz Rossa via Tech-talk
Next: Re: Does P4P Support Channel Access (CA) with a Provider Flag? Williams Jr., Ernest L. via Tech-talk
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  <2025
Navigate by Thread:
Prev: Re: RE: Re: Question Regarding HLS/LLS Settings and DIR Values Zhibang Shen via Tech-talk
Next: Re: Does P4P Support Channel Access (CA) with a Provider Flag? Williams Jr., Ernest L. via Tech-talk
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  <2025