Experimental Physics and Industrial Control System
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Hey Ulrik,
Do I have to have EPICS base installed on the machine with LabView? Or CA Lab has everything I need?
thanks, Pavel
On Thu, Jun 28, 2012 at 2:26 PM, <[email protected]> wrote:
Hi Steve,
A while ago (a couple of years) I went through this process and tried out a few different EPICS-LabVIEW integration libraries. My first choice was also this
NI supplied LabVIEW add-on. However, I had trouble getting this working well:
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There is a significant lack of documentation even to help you get started, let alone to understand how it does Channel Access I/O.
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I have had some trouble to get the add-on installed and working – and others have reported the same. See
http://www.aps.anl.gov/epics/tech-talk/2010/msg00277.php
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Once running I found that I couldn’t get array/waveform to work (possibly not supported at all)
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Setting up shared variables is far too complicated for some of our novice LabVIEW users
I had a lot better experience with the CA Lab library
http://www-csr.bessy.de/control/SoftDist/CA_Lab/ This worked straight out of the box for me and the documentation is excellent to get you started. Also it uses the native EPICS ca and Com libraries
and makes the source code available so you can understand how it really works. I recommend going with that for any new project.
Cheers,
Ulrik
I am trying to connect an existing LabVIEW VI to EPICS via the freely available LabVIEW add-on EPICS Client I/O Server (http://joule.ni.com/nidu/cds/view/p/id/2533/lang/en).
I am running LabVIEW 2011 and have a 3-14-11 soft IOC running on the same system with a few test PVs. My first aim is to make a connection between these PVs and elements of the LabVIEW VI (currently just a test VI). I wondered whether anyone had successfully
used this LabVIEW add-on or the full version as in the DSC/RT add-ons and could offer me advice on how to make the connection.
I have the following in my test LabVIEW VI; Create EPICS VI, Deploy EPICS Client VI and List Records VI. I was hoping that the latter would display a list of records
in my soft IOC if the connection had been established. I get no errors but it doesn’t seem to display any records.
Any advice would be appreciated, perhaps including whether I should be trying to use this LabVIEW add-on or one of the other options e.g. CA Lab or the Oak Ridge
CA client.
-- Best regards,
Pavel Maslov, MS Controls Engineer at Pulsed power Lab Efremov Institute for Electro-Physical Apparatus St. Petersburg, Russia
Mobile: +7 (951) 672 22 19
Landline: +7 (812) 461 01 01
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ANJ, 18 Nov 2013 |
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