I am using a LIN R701-R710 stepper motor driver to drive a single stepper motor, but I have having some issues using the NI 9401 and NI 9482 to controller my driver. The issue that I am having is using multiple lines at once to read data as well as write data via DIO of 9401, but when I place my codes into my Main Loop it appears that I am unable to control my relay or change direction. However, this works when I place each section i.e. the relay, direction, and step loops independently on an infinite loop they all work fine. I have attached my code and any help is much appreciated.
LIN R701-R710 Stepper Motor Driver:
http://www.linengineering.com/products/drivers-controllers/r701-710/
I based my program off on some of the NI posts and NI examples, but while I am able to move my motor it is unable to trigger the relay or change direction.
