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

Subject: Re: EPICS 7: Equivalent to Channel Access Filters
From: "Williams Jr., Ernest L." <ernesto@slac.stanford.edu>
To: Ralph Lange <ralph.lange@gmx.de>, EPICS Core Talk <core-talk@aps.anl.gov>
Date: Sat, 17 Feb 2018 19:54:02 +0000



Ernest Williams
Dept. Head, Advanced Control Systems
Advanced Instrumentation Research, Technology Innovation Directorate
SLAC National Laboratory, Stanford University



From: core-talk-bounces@aps.anl.gov <core-talk-bounces@aps.anl.gov> on behalf of Ralph Lange <ralph.lange@gmx.de>
Sent: Saturday, February 17, 2018 8:54 AM
To: EPICS Core Talk
Subject: Re: EPICS 7: Equivalent to Channel Access Filters
 
Hi Ernest,

On Sat, Feb 17, 2018 at 3:52 PM, Williams Jr., Ernest L. <ernesto@slac.stanford.edu> wrote:

Will there be an equivalent to Channel Access filters in EPICS 7?


First of all: obviously, Channel Access filters are part of EPICS 7 - i.e., the API is in Base, and all filters provided with Base still work with no changes.

So, assuming that your question is about using server-side filters with pvAccess - what exactly is your use case?

== 
We have started to rely on the Array Filter "arr"
Works beautifully  :)
We also plan to use: Deadband Filter "dbnd"


Do you have existing specific locally developed filter code that you want to use through pvAccess?

===
No, not at this time.

Are you using a specific functionality provided by a filter from Base that is not available using pvAccess?

===
Does pvAccess already have all the features of  EPICS V3 Channel Filters ?


Cheers,
Ernest


Cheers,
~Ralph


References:
EPICS 7: Equivalent to Channel Access Filters Williams Jr., Ernest L.
Re: EPICS 7: Equivalent to Channel Access Filters Ralph Lange

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