New Talon SRX and CAN with the 2015 Control System

[jhersh]

Originally Posted by FrankJ

The CAN spec calls a line structure. You might get away with a star topology, but it is not recommended by specification.

It also allows for taps up to a foot. I believe this should be acceptable for this application.

http://digital.ni.com/public.nsf/all...25795A000FC025

[FrankJ]

Originally Posted by jhersh

It also allows for taps up to a foot. I believe this should be acceptable for this application.

http://digital.ni.com/public.nsf/all...25795A000FC025

Thanks for the references. The physical layer spec (CiA 102) only says in effect that they should be as short as possible. It is nice to have actual numbers.

[nixiebunny]

I was just looking at a pile of Talon SRXs that we bought for this year's robot. Those green/yellow pigtails sure look like a nuisance to connect!

They want to be daisy chained, so an "in" and an "out" connector as male/female pairs make sense to use.

I'd love a standardized connector for CAN bus on these robots, but it looks like the folks at CTRE didn't think this was important.

Can we make one? I like those crimp terminals that go into Hirose, Molex, TE or whatever housings, but there are unfortunately about a hundred incompatible types out there.

Suggestions? How do you plan to connect Talon CAN wires to each other?

[Alan Anderson]

Originally Posted by nixiebunny

How do you plan to connect Talon CAN wires to each other?

We're going to do our initial wiring using Wago Lever-nuts. Perhaps in a few weeks we'll have come up with an array of Weidmuller terminal blocks on a simple circuit board.

[FRC2501]

Originally Posted by nixiebunny

I was just looking at a pile of Talon SRXs that we bought for this year's robot. Those green/yellow pigtails sure look like a nuisance to connect!

They want to be daisy chained, so an "in" and an "out" connector as male/female pairs make sense to use.

I'd love a standardized connector for CAN bus on these robots, but it looks like the folks at CTRE didn't think this was important.

Can we make one? I like those crimp terminals that go into Hirose, Molex, TE or whatever housings, but there are unfortunately about a hundred incompatible types out there.

Suggestions? How do you plan to connect Talon CAN wires to each other?

Our team is using the PWM cable connectors (2 wire) and crimping them on the SRX CAN wires