Problems with LabView Default Code

[JSzaday]

Originally Posted by MAldridge

First off the help menu is your friend. If you goto help>explain error, you can type in that error and it will tell you what is wrong. In your case, that won't help though because that is an undefined error.

I suggest that you go to the robotdrive palet and get the safety config off the advanced palet. Wire it directly after the refnum get, set mode the enable and the timeout terminal to 5.

Be aware that this makes your safety thread significantly slower, so you will need to be sure that you have a hand near the E-Stop when you are working with the robot and it is not on blocks. Additionally, if it pulsing PWM 3, then somewhere, your code is telling it that that is the correct channel to use. I suggest you go back through and re-read you code. Also, If you say that you HAD working code, perhaps you should improve your backup system.

Good luck and don't hesitate to come back if you have further questions.

Originally Posted by MAldridge

On the original issue, if you are using the KOP ribbon, you should read this:
http://www.usfirst.org/sites/default...structions.pdf
that would explain the mismatch of channels in software and hardware.

The back ups started failing after we drove the robot to a "before the bag competition." I came in to work on it the next morning and everything went wild (the robot started turning on it's own when we enabled it!). With all this talk about bad KoP ribbons, I wouldn't be surprised if that is what is causing all of our problems. Today when I go in, I will look into it. Do you know any places (like nation-wide chains preferably) where we could get a DB37 M/F Cable on the spot?

Originally Posted by plnyyanks

As fast as you tell it to be. The error is caused by the Motor Safety for the drive code (since the error cites RobotDrive as the error's source). That means that the code has exceeded the time limit (defaults to 100 ms) set for the maximum time between updates to a motor's speed (this prevents runaway motors). Each time you set a new value to the motor, the timer is reset until the next update. You can change the timeout for the safety by using the Safety Config VI (WPI Robotics Library->RobotDrive->Advanced) and setting the timeout to whatever value you want.

OK, thanks for this too, I will try and change this in the code.