Subject: |
Problem with LabVIEW Shared Memory Interface to EPICS IOC |
From: |
"Brand, Holger" <[email protected]> |
To: |
"EPICS tech-talk" <[email protected]> |
Date: |
Tue, 28 Oct 2008 08:43:33 +0100 |
Hi,
I encountered problems with the LabVIEW Shared Memory Interface to EPICS
IOC.
I downloaded and installed following packages:
- EPICS Shared Memory Ver 3.14.7
- Beta 2 Installer of SNS Template
I followed the instructions in "LabVIEW Shared Memory Interface.doc" Version
2.3 Beta June 2005.
I am using LabVIEW 8.5. I had to correct for some Path2String conversion and
then the Example VIs were executable. I also started the caRepeater.
Then I started the server VIs of the examples first. The EPICS IOC was
started successfully and "dbl" displayed the expected PVs. Next I started
the client Vis. I changed the "DAC" and "Coefficient" valued and could
observer that this vales were received and processed by the server VI. In
parallel I was monitoring the PVs using caMonitor.
The problem is that the value of the "ADC" PV is not updated, neither in the
LV client nor in the caMonitor process. The same is true for the "Readback"
values. Stopping the server VI and restarting (I killed the running IOC)
results in updating the "ADC" and "Readback" values once only.
I guess that there is a problem with triggering the record processing in the
IOC via SM.
Questions:
- Does anybody has an idea how to solve the problem?
- Is a released version (not beta status) of the software available? I did
not found any newer.
- Is a LabVIEW 8.x version for the LabVIEW libraries available?
Thanks Holger
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Dr. rer. nat. Holger Brand
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