PWM PCI-6251

[zacha]

Hello Andrew W

Thanks for your reply.

Best regard

zacha

[zacha]

Hello Andrew W

Thanks for your reply.

i got a problem .i don't measurement and save real time for analog voltage input when generate PWM.

How i do.

Best regard

zacha

[zacha]

Hello Andrew W

i sory .a first one it wrong a program.

this reply is true progam for use.

i got a problem .i don't measurement and save real time for analog voltage input when generate PWM.

How i do.

Best regard

zacha

[LV_junkie]

Zacha,

I'm interested in your code, but could you clarify the problem you're having with the VI?  Is the DAQ Assistant not behaving in the way you want?  Is the sequence of events in your application incorrect?  With a little more information maybe I can help you out!

[zacha]

Hello LV_junkie

Thanks for yous reply.i'm sory. i'm not clear the problem in my program.

In my program .i'm use DAQ Assistant measurement the analog input from position sensor and calculate the positon in degree.

i'm use the position (deg) to check condition in case structure. the program in case structure [1] are generate the PWM to drive

the solenoid valve.

the fomula are check the condition in case structure is:

//condition to Position//
/* a is an input from position sensor and b is a insirt position input */

/* y = 0 decrease angle
    y = 1 increase angle 
    y = 2 hold position    */

if (a[0]>=b)        /* if array a[0] >= input*/
y=0;                   /*y is default condition =0*/
else y=1;          /*if array a[0] < input .y is codition =1 are increase position angle*/ 

if ( abs(a[0]-b) <=5)
y=2;

The problem in my program is:

1.When generate the PWM in port0/line0:7 the DAQ are not measurement a analog input in real time.

   but it measurement a one value only.

2.It not calculate the position (deg) to check condition in case structure becuase it not real time.

In my program i'm want twice the measurement in real time and generate the PWM to drive solenoid valve.

How i do

Best regard

zacha