How to control HP 33120A and output a DC signal?

[happybird]

Hellow!
I'd like to control HP 33120A function generator,right now i have use the HP 33120A-WFM Config EX.VI and i can output Sin,Squart...wave,but when i try to output the DC signal,the amplitude control seems not work,what shall i do to output a DC signal and control its amplitude,Thanks!

[Bob_Y.]

I haven't worked with this generator or its driver, but sometimes the DC level is controlled by changing the offset instead of the amplitude. You might want to check this out.

Hope that this helps,
Bob

[happybird]

That works,Thanks!