CVs with dot in the number (1.300) are “indexed CVs” Which is a fancy way of saying it is really a group of 3 CVs that need to be changed like a combination lock.
The first two numbers “unlock” the CV you need to program. The third number is what you are really changing.
- Ensure CV 31 is set to a value of 16.
- Enter a value of 1 into CV 32 to select Indexed CV Page 1.
- Select CVs 257-512 from your command station.
From page 13 of the attached Soundtraxx manual:
Indexed CVs The term “indexed CVs” tends to cause confusion and consternation. Simply put, indexed CVs are located on ‘pages’ to help manage the total number of CVs. This is required by the NMRA DCC Standard and works like this: Indexed CVs are accessed with the use of two CVs: CV 31 enables indexing when set to a value of 16 (the default value) and CV 32 selects the desired indexed page. You do not need to type “1.” Into the command station when programming indexed CVs. Because of the number of features and options contained within Econami decoders, three pages of indexed CVs are provided: To access CVs 1.257-1.512: 1. Ensure CV 31 is set to a value of 16. 2. Enter a value of 1 into CV 32 to select Indexed CV Page 1. 3. Select CVs 257-512 from your command station. To make things easier, Econami CVs are grouped by like function as follows: CVs 1.257-1.512 are used for configuring Flex-Map function mapping CVs. CVs 1.257-1.384 are used for function mapping CVs and CVs 1.385-1.512 are used for automatic effect configuration. Refer to “Configuring Function Mapping” for more information.