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<== Date ==> <== Thread ==>

Subject: RE: force record processing for same parameter value in asyn port driver
From: "Kim, Kukhee" <khkim@slac.stanford.edu>
To: Mark Rivers <rivers@cars.uchicago.edu>, EPICS Tech Talk <tech-talk@aps.anl.gov>
Cc: "Kurty, Thomas Charles" <tkurty@slac.stanford.edu>, "Weaver, Matt" <weaver@slac.stanford.edu>
Date: Fri, 30 Mar 2018 21:02:25 +0000
Hi Mark,

My colleague, Mitch informed me, there was similar discussion in 2016. 
Thanks Mitch.

https://epics.anl.gov/tech-talk/2016/msg00941.php

I should search the tech-talk archiver first.
I will follow your comment in the discussion.


Thank you.
Best regards,
Kukhee
--------------------------------------------
Kukhee Kim
SLAC National Accelerator Laboratory
2575 Sand Hill Rd, MS 64
Menlo Park, CA 94025
Email: khkim@SLAC.Stanford.EDU
Phone: (650)926-4912
Fax:   (650)926-3800


-----Original Message-----
From: Kim, Kukhee 
Sent: Friday, March 30, 2018 1:12 PM
To: 'Mark Rivers'; EPICS Tech Talk
Cc: Straumann, Till; Kurty, Thomas Charles; D'Ewart, J. Mitch; Williams Jr., Ernest L.; Weaver, Matt (weaver@slac.stanford.edu)
Subject: force record processing for same parameter value in asyn port driver

Hi Mark,

 

I am using asyn port driver for LCLS1 mission readiness project,

and now am trying to integrate it with our Beam Synchronous Acquisition (BSA) system.

 

The BSA assumes, data source PV is processed every time, even the PV has same value with the previous processing, the PV should be processed and should have new timestamp.  The new timestamp is an index key for the BSA.

 

I am using asyn port driver for the data source PVs.

In asyn port driver, if parameter has same value (no change),  it does not make record processing.

Is there any option to make force record processing even no change on the parameter?

 

 

Thank you for your help.

 

Best regards,

Kukhee

-------------------------------------------

Kukhee Kim

SLAC National Accelerator Laboratory

2575 Sand Hill Rd, MS 64

Menlo Park, CA 94025

Email: khkim@SLAC.Stanford.EDU <mailto:khkim@SLAC.Stanford.EDU> 

Phone: (650)926-4912

Fax:   (650)926-3800

 


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