Hello, I have a 9375 DIO cDAQ card on a 4 slot USB chassis. My question is can the card be configured to perform simultaneous read and writes? All the DAQmx channel and task VI's want to either read or write. My goal is to be able to use a digital output to trigger a UUT and use one of the digital inputs to read an output from the UUT. I know I can start and stop the digital in and out tasks in order to perform my test but was wondering if I am missing the mark somehow. Cheers, Emach

Sorry, I made a mistake in my original post (I blame my lunch for distracting me) when I made it seem like you could do one hardware-timed task and one on-demand. You can either do on-demand tasks OR one hardware-timed task in one direction. This means if you want to do DI and DO, you need to use on-demand or two separate modules.

Multifunction DAQ

9375 Simultaneous write and read

Solved!

Hello,

I believe what MarkGrot was trying to say was that if you want to do DI and DO simultaneously on the same module, they need to use on-demand/software timed tasks. You cannot have two hardware timed tasks on the same module.

Nolan H.
Applications Engineer
National Instruments