Experimental Physics and Industrial Control System
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For all the people who are interested in using LabVIEW for Channel
Access data display I have created a little demo to show how LabVIEW
could be used. I think it would help deciding on the specs to give to
NI when they will integrate CA and LabVIEW. It is built on top of
Andrei Liyu's CA client and requires virtually no programming to get a
display with live data.
It is very EDM like in that you just put an indicator like a waveform
graph on the front-panel, give it the name of an EPICS PV, save and
close the panel. You can then run the panel by selecting it from a list
in the start screen utility. This utility, creates a background task
that will scan the PVs and send data to the indicators on the
front-panel. It is in the early stages and supports only a limited
number of LabVIEW's graphs and indicators (waveform, chart, table,
single indicators of float type). You can also do settings and add
program code to analyze the data or save to disk. Currently, it can
only scan PVs not monitor. The code should work on Windows, Linux, and
Mac OS X and requires LabVIEW 7.
Dave Purcell can hopefully demo this to the EPICS conference goers.
Willem Blokland
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ANJ, 10 Aug 2010 |
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