led matrix control using pwm

I'm designing probe of fiber optics for my medical research project.  My plan is to use the controlled gain 50 high power LED. For this, I buy USB 6509 data acquisition card, SH100 cable and box of CBS puts 100 output terminal digital. I know the rest of the electronic circuits for LED current control, but I do not know how to control PWM using View(means PWM of each channel) Lab, which is given for the power transistor. and this common power control transistor through means of the LED on the LED intensity.
 
I have following problems help me for this
 
1. how to control each digital output PWM.
2 both only single-output will be ONE other will be off (Zero) (means a will ON state, 49 will be out of State). Then after 2 seconds it goes off State and next will be ON the State.
3. THE time is very low (about 2 to 3 seconds)
4 ON OFF time between two switching LED is very fast.

Kind regards

Rajesh

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Hi Renon,

This is what happens when you schedule without the actual hardware to test it. What result do you get on the outputs digital real?

Try this new version of the file.

Kind regards

Tags: NI Hardware

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