RE: SoftIOC and Labview

[Kathryn Baker - UKRI STFC via Tech-talk <tech-talk at aps.anl.gov>]

I don’t work for BESSY, but I am a LabVIEW developer as well as too many other languages by now, and I would choose CALab over the native implementations in LabVIEW. I hadn’t noticed a marked improvement in the EPICS implementations, but generally we don’t use it where I work.

 

If we are writing in LabVIEW and talking to something in EPICS, we use CALab. As is often the case it depends on the overall system what the best solution is, but for the problem description you gave, I’d go with CALab myself.

 

Regards,

Kathryn

 

From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of Ralph Lange via Tech-talk
Sent: 27 May 2020 08:36
To: EPICS Tech Talk <tech-talk at aps.anl.gov>
Subject: Re: SoftIOC and Labview

 

My 2cts - your mileage may vary:

 

The NI implementations of CA (client and server) were indeed getting better over time, but they started at a very low level of compatibility.

Their newest versions are pretty much working (at least for scalars), but - especially for their CA server - you are always in for some surprises, and your clients might need special configuration when talking to an NI Channel Access server.

 

I can just underline what Gabriel wrote: In my experience (which is obviously biased as I was working at BESSY for a long time), CALab is the most reliable, robust and stable CA client for LabVIEW.

(Doesn't just look better - it works better, too!)

 

Cheers,

~Ralph

 

 

On Wed, 27 May 2020 at 08:27, Gabriel Fedel via Tech-talk <tech-talk at aps.anl.gov> wrote:

I had the same problem with older versions of Labview. As soon I know
the waveform implementation on Labview is wrong, so you shouldn't trust
on it.

An alternative is CALab
(https://www.helmholtz-berlin.de/zentrum/locations/it/software/exsteuer/calab/index_en.html),
I've tried once and it looks much better than NI solution.

 

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