How to control steps of a step motor using labview?

[1M2S]

    Hi, I'm really beginner on labview and I need to make a VI to control a step motor. For each n steps, a sensor must observe the position of a mechanism and save in a table based on the number of steps taken. I've already have the sensor's driver, but I don't know how to comunicate labview with the step motor.

   I've seen some samples here, but they weren't enough. I need to buy some specific hardware? What's the difference between using VISA and Motion NI 77xx? Where I write how much steps I want it moves?

[Abel_Souza]

HI 1M2S,

You have many ways to communicate LabVIEW with a step motor. Are you using a IC step motor driver or a NI module step motor driver?

If you a using an IC step motor driver you can use serial port or DAQ digital output to control the step motor steps.

If you are using a NI step motor module you need use NI Motion functions.

Best regards,