Encoders on Drive Train DON'T WORK.

[slijin]

Originally Posted by Matthew Blake

We have tried replacing the encoders, then the encoder wires, and finally the ds; still no results. We have tested all the points of failures as far as we can tell, and we still have no results.

Just to clarify, "ds" here refers to the digital sidecar here, right? (In my experience, DS is used for the Driver Station and DSC for the digital sidecar). It's probably not your problem, but was your ribbon cable checked and fixed correspondingly?

Originally Posted by Matthew Blake

Because we are able to get a reading from each encoder individually, we know both encoders work.

What, if anything, did you change to switch which encoder you can read data from?

Originally Posted by JamesTerm

We are using US Digital... I asked Matt to get the model numbers...
The ones giving failure are mounted on the drive... its yer basic tank drive.

Were they the ones received in the KoP this year or from AM FIRST choice? If the answer is yes to either, then you're using the E4P encoder with a 360 CPR wheel.

Originally Posted by JamesTerm

In regards of what method we are using... We have another encoder problem that I was thinking of posting, but it may be related.

There has been a wealth of discussion on this topic and how to filter encoder data to return a more stable rate. I would suggest doing a forum search and comparing your results with those that others have documented. I doubt it's related to the problem that this thread was created to discuss, as this is a widely documented issue that is commonly expected of encoders, whereas the one that you're experiencing hints of a connection problem.