How do I synchronize the 2 analog outputs?

[david79]

Hello,

I am using labview 7.1 with an 6221 M serie device. I would like to generate 2 output signals :

1) A square signal ( changing value every 60 secs for instance )
2) A step signal that has about 8 different constant values that change every 4 min for example ( 4 minutes at 1.5 V, 4 minutes at 3V,4 minutes at 4.5 V ... and so on )

I would like to synchronize these two signals so that they start at the same time. Could anybody give me a hint on how to do this?
Up to now I have used the continous square generator example for the first signal. However, I now have to synchronize it so that it starts with the second signal. If by the way anybody already has an example that I could use to make up that second signal, it would be a great help...

Thanks for any kind of help,

David

[rpursley8]

Try this one. You may have to modify the DAQ Assistant for your card.

[david79]

Hello Randall,

Your VI is EXACTLY what I was looking for ! I have inserted a read to spreadsheet to output the values of the step signal and it works fine.

Thanks a lot for your help and for answering so quickly,

Kind regards,

David