CV 14

From Train Control Systems Documentation
Revision as of 21:47, 16 July 2021 by TCSDanM (talk | contribs) (1 revision imported)
Jump to navigation Jump to search
CV 14
DC Mode Lights F0 & F9-F12
Range of Values0-255
Accepted Values0-255
Default Value255

NMRA CV 14 - Alternate Mode Function Status F9-F12

Indicates the status of each function (F9 through F12, & FL) 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 FL in the forward direction is controlled by bit 0, FL in the reverse direction is controlled by bit 1, bit 2 corresponds to F9, and Bit 5 corresponds to F12. See the chart below:

Feature Value
Function 0 Forward 1
Function 0 Reverse 2
Function 9 4
Function 10 8
Function 11 16
Function 12 32

The SUM of the desired functions active while operating in DC mode must be programmed into CV 14. A value of 255 enables all light functions on DC power.