One Task having both Analog Out and Analog input coltage channels

[Vincenttswong_]

Hi, am using USB6009.

Would like to create

1) Analog Out channel to output a predefined waveform

2) Analog Input channel to measure input voltage

Both channel 1 and 2 have to be started simultaneously.

I tried to create both channels(1 and 2) in a same task, but it prompt me error as below:

code:  -200559

message : Measurements: Task cannot contain a channel with the specified channel type, because the task already contains channels with a different channel type.
Create one task for each channel type.

What I would like to achieve here is to use channel (2) to measure signal from channel (1)

Question:

1) Can this be done in 6009?

2) If "No" for question (1), is there any other card(s) that I should choose?

Thanks.

Warmest regards,

Vincent

[xdaf]

You must create two separate tasks, indipendently on which card you have.

To sychronize read and write tasks, I'd trigger them on the transistion of an unused input.

Regards