error 200018 on Analog Output

[John_P1]

Hi kmc,

Have you tried setting the data transfer mechanism to DMA?

Also, you might want to change the counter task up a bit.  Right now the CO is running continuously, so it's quite possible that immediately after the AO Task restarts it receives a sample clock edge before it has a chance to transfer the data from your computer to the on-board FIFO.  If you have the second counter available, you could configure the counter to output a finite number of pulses, triggered off of the AO Start Trigger with a programmable Initial Delay.  Counter Outputs may be set to Retriggerable with a DAQmx Trigger Property Node.

Best Regards,

[kmc]

Hi John,

I have tried setting the transfer mechanism to DMA and still had the same results.  When does the transfer occur, is it after the call to Write or after the call to Start?  If what you are saying is the issue why don't I see the same problem when I run with the M-Series? 

thanks