If it’s a Zimo (likely on a modern Roco loco), then further CV’s (starting with CV7) will get to both the Zimo software revision and the decoder hardware description.
?
There is a fair chance that the specific version in the loco isn’t in JMRI.? But, that doesn’t matter as 99% of Zimo features are common over a lot of hardware
and software revisions, so picking something close in the JMRI list will work fine.???? The task of keeping up with the rate of releases from Zimo is difficult (dozens of software releases, every decoder being end-user upgradeable to any new software version),
so quite a lot of small releases don’t get noted and/or don’t get to Zimo definition files in JMRI.
As Marc just said, CV 7 only gives the Zimo Software version number (currently 37 or higher), the decoder model itself is stored in CV250. Thus JMRI should tell you to chose the model depending on the Zimo SW version.
