© 2022 Digitrax, Inc.
www.digitrax.com
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7.2 Read and Write Configuration
Variables:
There are many different CVs that have been
defined to control the operating characteristics
of your locomotives. The decoder manual
and product Instruction Sheets have added
information for CVs that are available in spe-
cific decoders, what they do and suggested
values for each CV. Programming these CVs is
straightforward:
1. Be sure that only the locomotive you want
to program is on the programming track.
If using Operations mode CV program-
ming, the loco will need to be on the pow-
ered mainline RAILA/B, and you will only
be able to write CV values).
2. For CV Programming, press the
key
then the
key to start the CV
Programmer.
3. You will now see CV Program Menu A.
From this menu use the number key to
select the method of CV programming you
wish to use:
• 1-Po; Ops on Mainline
• 2-Pd; Direct on Prg Trk
• 3-Pg: Paged on Prg Trk
• 4-Ph: Physical on Prg Trk
Note: Direct programming (
key) is the
Digitrax preferred Service Mode method
4. Once you have selected a programming
method, it will now show the CV number of the CV you are changing. CV
data is the value you are programming to that CV number.
5. To change the CV number you are editing press the
“CVNUM”, then
use the number keys to enter the CV number you want to change.
6. Once you have the CV number entered press the
“CVDATA” key. The
soft keys will change to “WRITE”, “READ”, and “BACK”. Press the
“READ” to read the current value of the CV number you have selected.
Now the number keys enter the value you wish to program to the CV num-
ber you have selected. Press the
“WRITE” to save the data entered.
The
Scrolling Help Text
line will read “Program Task OK” if it has suc-
cessfully programmed the value.
7. Press
“BACK” to exit to the previous menu to select another CV num-
CV Program Menu A:
2- Pd; Direct on Prg Trk
CV Number:
CV data:
0001
0001
CVNUM CVDATA
DONE
CV Program Menu A:
0- Last Menu
1- Po; Ops on Mainline
2- Pd; Direct on Prg Trk
3- Pg; Paged on Prg Trk
4- Ph; Physical on Prg Trk
k
5-
6-
7-
8-
9-
CVNUM CVDATA
DONE
