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We appreciate your patience as we improve our online experience.
03-07-2013 05:38 PM
Hi Im trying to log select data when any of 24 signals rises above 5 V which I have done with Greater or Equal Express VI. I'm having a hard time getting this data to my file via Write to Measurement File. A waveform plot that I have connected to this signal has no problem extracting the channel names from the signal. However they aren't as easy to get into my data file. I have been searching quite a bit and I know I need to convert to array to get names then back to dynamic for the file making. I'm not having any luck with this approach. I have quite a few dummy channels involved and I thought about extracting channel names from mx, but obviously I'm only interested in the selected signals of specific channels that have specific voltages.
Thanks.
03-07-2013 07:45 PM
03-07-2013 08:39 PM
What Express VI does that? Snippet attached. Thanks Dennis.
03-08-2013 12:50 PM
Okay here's the other approach I tried. I'm not sure what to do with the channels terminal on the read data expres vi. It has a storage format, but I think the channel names are in there. I need them to go into my rows on the csv. What I have runs but doesn't work. Any hints appreciated.
03-08-2013 01:02 PM
That last VI does not make any sense to me.
The Express VI to set a signal name is called Set Dynamic Data Attributes. The set waveform attribute function probably would have worked if you gave it an actual name instead of a tab character, which is something I already mentioned.
03-08-2013 04:11 PM
I had a bunch of uneccessary VI's. Results are getting better in that each channel goes to a column in the data file but still no time column or channel labels.