error during writing digital output in usb-6343

[d_2014]

hello.....

i have a trask to produce some digital waves... so i am using daq-6343 usb. for starting it, i am trying to write 1 simple value (i.e  1) to first pin of port. but i am getting error.. here i am attaching error png and vi of code... plz help me out here..

thanks & regards,

[d_2014]

hello i tried some modification and i am getting different error.... plz some look into it and help me out here.

[vkatre]

Hello!

Here is the solution to both your queries:
Query 1:
http://digital.ni.com/public.nsf/allkb/370BD28D3D81EB95862572D0000B1C48?OpenDocument

Query 2:
You must write to the buffer before starting the task. i.e. in the virtual channel, DAQmx Write function should come before the DAQmx Start function.

Hope this helps!

[d_2014]

hey thanks for reply....

your answer realy helps me. 

but now it shows error regarding buffer size.. but as per my knowledge labview itself select buffer size...

regards,

[vkatre]

1. Could you please post a snapshot of the error and also the vi? 

2. Is it necessary to use hardware timing? Software timed output might help. 

[d_2014]

i am using same vi with altered position of write and start Vi... right now i am not able to post png file...

but says error of buffer size.. expected is 2 but set value is 1.

[d_2014]

continue..

No.. there is no need to use hardware time.

[vkatre]

http://digital.ni.com/public.nsf/allkb/34B9B5A331DE0E18862571F80072FAEA?OpenDocument

[vkatre]

For a single point output create task, write to buffer, stop task, clear task. No need to have a hardware time for single sample. 

For a waveform output, use software timing. 

PFA the examples for Digital Output. 

[d_2014]

hey vkatre...  thanks for help.. can u repost Vi in labview 10...? that would be so gratefull.