problems with time scale of arb wave form

[db2nc]

Hello,

I created an arb waveform. Within Labview I can also change the time constant. However, on the hardware (USB-6361 with 10MHz DIO) I receive only 1ms impulses instead of 100µs impulses.

Currently I am working on a Labview Evaluation Licence. The  full labview licence is installed and available at the licence manager, however there are some problems. I am working on that. I mention this as this might also be the reason for my hardware problem.

I included the VI. The first two analog signals are for creating a certain reference and supply voltage. The sencond one is the digital output which should be 100µs instead of 1ms which I measure with the ocsilloscope.

Thanks. 

[GerdW]

Hi db2nc,

to create 100µs pulses you should use a dt of 0.0001! (Timebase is given in seconds…)

[db2nc]

Hi,

I checked everything, I corrected the timescale, but I always get a 1ms impuls.

The hardware is NI-USB 6351 (it should have 10MHz DIO)?!

Currently, the evaluation version is runnig - although I have labview full licence - there seems to be another bug?!

Thanks.

[GerdW]

Hi db2nc,

did you try to set timing to "use waveform" in the DAQmx part of your VI?

For the licensing you should call your NI support, I guess it's Munich in Germany: 089-7413130!

[AnMu]

Hi db2nc,

have you solved your issue? I saw in this forum a similar post by you which you claimed it has been solved.

Regards Anoj