Diesel Version 5:CV 13
NMRA CV 13 - DC Mode Function Status F1-F8
Indicates the status of each function (F1 through F8) when the unit is operating in alternate power (DC) mode, which cannot control the functions. If a function can be controlled, then the corresponding bit is ignored.
If the bit for a function output is "cleared," this indicates the function is disabled on DC power. If the bit for a function output is "set," this indicates the function is enabled on DC power. CV 12 is a bitwise CV, where Bit 0 corresponds to F1, while Bit 7 corresponds to F8. See the chart below:
The SUM of the desired functions active while operating in DC mode must be programmed into CV 13. A value of 255 enables all light functions on DC power.