how to make a PWM pulse without DAQmx

[alikondori]

hi

im new in labveiw,how can i make PWM,without DAQmx?i need it to control a dc motor but i got my own card not national's DAQ cards

[srikrishnaNF]

hi alikondori,

  Does your system has any serial ports?

Thanks and regards,

srikrishnaNF

[falkpl]

What card did you get.  Chances are that there is an api for communication with the card via a dll or activeX or .net object.  I would start with your card manufacturers manuals.

[alikondori]

hi again...i have conected the card with RS485 to the laptop....i also have analog input and output on the card and i want to control the motor's position with a potential meter

[alikondori]

the daq card has the input and output driver,and i have them both(the blocks)on labview...i actually didnt get your answer but i attach them below

[falkpl]

485 implys serial communication to the device, which looks like the missing subvis encapsulate the exact communication strings you need for setting the analog output to control the DC motor.  Without the card type and docs there is not much to suggest, sorry.