Messy CV 29

Can anybody explain how to open the menu and submenu of CV 29?. Thanks

There is no menu or submenu that I know of for CV 29.

Here is a link to a look up table.

http://www.tonystrains.com/technews/cv29-lookup.htm

If using one of the checklists that says “Bit 1 does this” etc - it’s REALLY easy. I think people try too hard.

First of all, the bits are labeled right to left. Just like decimal numbers - ones, tens, hundreds, etc.:

Bit: 7 6 5 4 3 2 1 0

Value: 128 64 32 16 8 4 2 1

Mark off the ones you need and add the values. That is the number to program into CV29.

–Randy

CV29=34 or CV29=35 are the most common values.

I made up my own chart of CV 29 values. Just add up the values that you want to use that have a value of 1 in the first 5 bits. Bit 7 selects between a mobile and stationary decoder and is not used often enough to be of concern, and bit 6 is not used.

Bit Value:

32 = 0 Short Address Enabled
32 = 1 Long Address Enabled

16 = 0 Use Default Speed Table
16 = 1 User Loaded Speed Table

8 = 0 Advanced Acknowledgment Disabled
8 = 1 Advanced Acknowledgment Enabled

4 = 0 DCC Operation Only
4 = 1 Dual Mode DC/DCC Operation Enabled

2 = 0 14 Speed Step
2 = 1 28/128 Speed Step

1 = 0 Forward Motor Control
1 = 1 Reverse Motor Direction

EXAMPLE: To set CV 29 for a Long Address and 28/128 Speed Step, add 32 + 2 for a value of 34.