Non Powered Devices

Way back at the beginning it was pretty well a rule that all nodes on a CAN
bus should be powered.  With Steve Corrigan from TI no longer with us I
don't have access to a CAN driver designer to ask that question.   And there
are way more drivers out there than there were 25 years ago.
 
What's the general rule on that now?   Will an unpowered CAN driver
adversely affect the CAN bus signals and/or are there some that can even be
damaged?
 
Thanks
John Dammeyer
 
 
 
 
"ELS! Nothing else works as well for your Lathe"
Automation Artisans Inc.
www dot autoartisans dot com