aquiring two analog signals from DAQ but not getting correct waveforms

[hussain]

hi everyone

right now i am acquiring two analog signals in terms of voltage, now my problem is that i use split signal for spliting both signals, and then i use Pulse and transition Measurment vi  to analyse both signals separately, before when i was doing with one aquired signal i was getting exact waveform which i required but after inserting the other signal it is not giving the right output . i am using Labview 8.6 with NI USB-6212. i am attaching this vi to have a look and please suggest me how could i fix this problem,

 thanks

[VENKATESH.J]

Hi Hussain,

Can u upload your code in Labview 8.5 version.

Rgds,

Venky

[hussain]

thanks for reply venky here is the vi in 8.5 compatible

looking forward  to your kind suggestions

[Coq_Rouge]

I think your problem is that the timing information is lost in the translation. I have made a picture. Just double click on the symbol to open the menu

[hussain]

thanks, i have tried with making it single waveform but still if i change one wave form it also changes the others with same amplitude and frequency, i am using two function generators that are connected with NI-USB-6212 DAQ. and i am using channels ai0 and ai1, when i change input signal from one form to other like from square to sine wave in function generator the other waveform also shows the same change, even though it is connected with other function generator. i hope u understand what i am saying, 

looking forward to your kind reply 

[VENKATESH.J]

Hi hussain,

you need to change the Resulting data type in Convert dynamic data to 2D Array of scalars.Try this out and let me know.

Note : for changing the data type double click on the convert dynamic data block and select.

Rgds,

Venky

[VENKATESH.J]

Hi Hussain ,

Check out this link.

http://zone.ni.com/devzone/cda/tut/p/id/3016

Sampling rate and samples to read shud not be same.

Rgds,

Venky

[hussain]

i tried with ur solution by labling it as two dimensional array bt then i got problems with this pulse and transition measurment vi block in my code because that eccept only double 64 bit real data..

can u plz have a look on my vi i posted in my last reply, i shall be grateful, venky

thanks