FRC robot modeling kit
 

I've been using the FRC Robot Modeling kit from 2008 (I didn't have a chance to use during the last build season).
They have no comments on Context Help, so I was testing them individually to figure out what some of the inputs actually meant. I started with the Motor one, and found that it didn't seem to work. At all. The motor speed has no response whatsoever to the input voltage.

Is there an error in the VI itself, or does it have something to do with the "step size, seconds" global variable that I'm not writing to?
What is this step size? Why was the VI written like this?

Here's the motor presets I'm using:


I tried every interger from 0 to 96, and the motor speed was still zero.
I tried running inside a WHILE loop in case it initialized every run during "run continuously".

What am I doing wrong?


NOTE: It seems this modeling kit is out of use for the cRIO, according to this post. I would still like to use it for simulating the drivetrain. Is it feasible to use it like this? Would it be better just to create my own (with proper mechanical forumuli)?