switch from dc to analog generation with hardware trigger

[Dixie]

Hi there, I would like to do the following:

-Set a  terminal to a user defined dc voltage

-Switch to waveform based voltage generation when a hardware trigger is received

Is there a way to do this with a multifunctional DAQ board? I am under the impression that seitching from dc to waveform generation can only be done in software. This would lead to a certain dead time. How long will the dead time be? Will the DC voltage be stable during this dead time?

All comments welcome

[CasperK · Accepted solution]

Hello Dixie,

See the attached screen shot, this could be an option. First you can make a DAQmx task which sends out a DC voltage, when you directly clear the task the dc output will remain on the level you selected before. Then you will create a DAQmx task to send out a waveform and waits on a trigger to do that. The output will be on the DC level until there's an trigger then the waveform will be outputted.

Cheers Casper

Message Edited by CasperK on 02-04-2010 04:40 AM

[Dixie]

Hi Casper, thanks for the tip!