On Thu, 26 Jan 2006, Bruins, Stefan wrote:
> When using de waveform record as an output array, how can the array
> being filled with values through MEDM. A subarray does not support
> writing values to a waveform record.
Yes, this is a difficulty and I'm still working on how best to solve it
for my particular application where a number of waveforms need to be
modified or tuned regularly as part of routine operations.
I will likely end up using gensub records (
http://www.observatorysciences.co.uk/client/epics.asp ) to dynamically
populate / modify the waveform values based on some number of scalar
values which can be entered through the medm interface. The various
snapshot tools (we use burt) can also read / write waveforms so I plan to
use that approach for saving / restoring waveforms for particular machine
setups once they have been created via the gensub records.
Depending upon how you plan to create your waveforms, another possibility
is to use a host based tool along the lines of caput to write to the
waveform records, for instance matlab and mcaput.
If you just need to load the waveform once at initialization and not
modify it, things are much simpler. Search tech-talk on "initialize
waveform".
--
Steve Hartman
[email protected] || 919-660-2650
Duke Free Electron Laser Laboratory
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