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cfp-quad-510 count max

I've got a loaner cFP-QUAD-510 and connected it today to see how it will work with the cFP_1804 module.
 
I've got external power wired to the cFP-CB-1 V and C terminals as prescribed.
 
The first thing I do in my simple VI is to send the Command = 1 to reset the count.  This does not appear to be working.
 
The next read of the counts taken shows 1616969568.  This does not change when I do not rotate the 60 PPR encoder.
 

When I rotate the encoder the counts seems to wrap to 4294967136 and then only the last 4 digits change count, but not steadily and I get 4294967136 showing up quite bit after the encoder counts down by a couple hundred.

 

What could be causing this?  Does the cFP-QUAD-510 work with the cFP-1804 backplane?

 
Ryan Vallieu
Senior Systems Analyst II
NASA Ames Research Center
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Lesson: Always check the pins on the loaner equipment - found a bent one - unit works.
Ryan Vallieu
Senior Systems Analyst II
NASA Ames Research Center
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Message 2 of 2
(4,285 Views)