Tetrix 180 Servos do not work in LabVIEW 2012 for Mindstorm

[tab24]

Tetrix 180 Servos do not work in LabVIEW 2012 for Mindstorm, Driver Control mode.

Tetrix Continuous Servos work.

Tetrix 180 Servos work in Schematic Editor.

However, Tetrix 180 Servos do work in LabVIEW 2010 for Mindstorm, Driver Control mode.

Any suggestions ?

[mikeporter]

What happens when you try?

1. Nothing
2. Errors
3. A hole is torn in the fabric of the space-time continuum

(ok, the last one is probibly not likely)

Mike...

[tab24]

Nothing happens.

Continuous Servos and Tetrix Motors respond as expected, but 180 Servos do not.

perplexted FTC  coach

[mikeporter]

If I understand, the continuous motion servo works, but not the one that has its motion limited to 180 degrees, correct? And it sounds like you have tried more than one of the 180 servos, also correct?

Well, the fact that the continuous servo works would tend to exonerate the controller. Is there any sort of configuration utility to tell the controller what sort of servo is attached to it? Could it be as simple as the servo has run all the way to one limit and can't go any further? 

MIKE...

[tab24]

Yes, Continuous Servos work in two directions and at various speeds.

I have tried 3-4 controllers and 5-6 180 Servos.

I have prepositioned the 180 Servos in numerous locations.

The Schematic Editor allows you to select 180 or Continuous Servos.

In the Schematic Editor you test the servo thru it's full operational range.

The 180 Servos respond properly.

The 180 Servos all work properly if programmed using the LabVIEW 2010 for Mindstorm.

I can even program in LabVIEW 2010 for Mindstorm and open in LabVIEW 2012 for Mindstorm and the 180 Servos work.

I have tried all the simple solutions I and the team could think of.

My first response when the FTC Team Members say "It doesn't work" is "Plug it in" or "Turn on the power"

Thanks for the time and effort.

[mikeporter]

Ok, that answered my next question: Does it work in an earlier version -- and it does. I have to admit I am not familier with the MindStorm product, but is there a way you can get inside its blocks to see what they are doing, or not doing?

Which brings up another question: is this an NI problem or a Lego problem?

Does Lego have a support forum to see if this is a problem that others have experienced?

Mike...

[tab24]

FIRST Tech Challenge has a forum, but for some reason I can not log in.

I'll get with Customer Service Monday and resolve the issue.

There is one post that seems very close, but was using MATRIX vs TETRIX and their DC Motors also were not working.

I thought I had marked it last night, but can not find it to reference or quote, sorry.

Thanks for trying.