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Bachmann Online Forum

Discussion Boards => General Discussion => Topic started by: richd286 on November 01, 2016, 04:03:16 PM

Title: CV Read always returns a value of 255
Post by: richd286 on November 01, 2016, 04:03:16 PM
When I read any CV on the service track I get a value of 255.   I have programmed different values in various CVs and can see the expected effect in engine performance so I believe the CV values are changing.  Does anyone have experience with this CV read problem.  I have a ProBox wired correctly.  Thanks.
Title: Re: CV Read always returns a value of 255
Post by: Hunt on November 03, 2016, 04:56:50 PM
What decoder is in your engine?
Title: Re: CV Read always returns a value of 255
Post by: WoundedBear on November 03, 2016, 05:18:18 PM
Some decoders don't support "read back".

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