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

Subject: Re: PV Access
From: Ralph Lange via Tech-talk <tech-talk at aps.anl.gov>
To: EPICS Tech Talk <tech-talk at aps.anl.gov>
Date: Thu, 26 Mar 2020 07:09:36 +0100
Hi Niko,

The key is the second sentence in the documentation you refer to:
The IOC continues to support the older link types that do not use JSON to specify their link addresses.

Cheers,
~Ralph



On Wed, 25 Mar 2020 at 23:33, Kivel Niko (PSI) via Tech-talk <tech-talk at aps.anl.gov> wrote:

Hi Andrew


may I piggyback on this question? I got another documentation related question.

Some time ago I tried to use JSON input links, but failed w/ anything but pva.

DB example is below, based on this doc https://epics.anl.gov/base/R7-0/3-docs/links.html


record(ai, "${SYS}:constFloatPi") {

  field(INP,  3.14159265358979)

  field(PREC, 9)

  field(PINI, "NO")

  field(DESC, "ai, holding Pi, PINI=0")

}


# db input link

# not working: error --> dbJLinkInit: Link type 'db' not found

record(ai, "${SYS}:dbInput") {

  field(INP, {db:"${SYS}:constFloatPi"})

}


Can you please point out were the current documentation of the JSON link feature can be found? Or comment on the error "Link type 'db' not found" I receive?


Replies:
Re: PV Access Ben Franksen via Tech-talk
References:
PV Access Rolf Keitel via Tech-talk
Re: PV Access Johnson, Andrew N. via Tech-talk
Re: PV Access Kivel Niko (PSI) via Tech-talk

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