Can multiple AI tasks be started on the same 6229 DAQ card

[Peter_Bham]

I am establishing DAQmx read tasks to run in 2 independent loops. One is

Continious samples and the other is Hardware Timed Single Point. Run

independently both tasks run and perform as expected. Running both in the

same

VI or 2 independent VI's give me a resource conflict (-50103). Are

multiple

tasks / or timing methods allowed on the same 6229 card? If not, what is

an

alternate solution.

[Peter_Bham]

I have read that multiple tasks are not allowed on the same card.  Does that mean that all the tasks must be the same sample type and rate?

[Travis G.]

Hello Peter,

Take a look at these resources which discuss this issue in more depth:

KB 2WT74JMM: Causes of NI-DAQmx Error 50103 "The Specified Resource is Reserved"

Discussion Forum: Running Multiple DAQmx Tasks Simultaneously

Discussion Forum: DAQmx error -50103 for Concurrent Analog In Tasks

Regarding your second question, with DAQmx 7.3 and later, you can include different types of analog input channels in the same DAQmx Task, but these channels must share the same timing configuration, i.e. sample clock rate.

I hope this helps,

Travis G.
Applications Engineering
National Instruments
www.ni.com/support

[Peter_Bham]

That answered my question, thanks.