Independent control of analog outputs in 6713 card

[Sam_C]

We were previously using a 6024 E card to independently generate a DC voltage and a pulse train on that card's two analog outputs channels. The two AO channels were independently updated with labview 7.

We had recently purchase a 6713 card and had not been successful in trying to do the same. After generating a pulse train on the 6713 AO channel 1, the pulse train disappears when I tried to update channel 0 with a DC signal. I am not sure if this got to do with the fact that the 6713 has only one AO group and that all AO channels need to be updated simultaneously through one AO write vi. Any help would be much appreciated.

[Spencer S.]

Sam,

You are correct. You will need to update both analog output channels simultaneously with one AO Write.vi. If only one channel needs to be updated, you will need to rewrite the data for the channel that does not need to be updated. Anyway, below I have included a link to an example program that demonstrates this technique:

Continuously Generating a Waveform and a DC Voltage on Multiple AO Channels

Good luck with your application.

Spencer S.