Effects programming (and function mapping) examples
Ditch lights:
What we want to do:
➡
Use outputs 3 and 4 for the left and right ditch lights
➡
They will be controlled by F2 which is the HORN button on most DCC systems
➡
They should continue flashing for 5 seconds after the HORN button is released
How to do it:
✓
Program outputs 3 and 4 to both be activated by F2. Set the F2 mapping CV (CV36) to 12.
We get the value of 12 by adding the ‘values for output 3 and output 4 on the F2 line of the
CV
mapping table
on page 6.
✓
Program outputs 3 and 4 for ditch light operation. Set CV122 to 56 and CV123 to 60. Using
these values the lights will be ‘qualified’ by the headlight AND function 2. The headlight must
be on for the ditch lights to be activated by F2. Type 1 ditch lights are on constantly on when
the headlight is on and alternately flash when the horn is blown. Type 2 ditch lights are
normally off until the horn is blown. This example is for the more common Type 1. If you
prefer Type 2 use EFX values 52 and 48 instead of 60 and 56.
✓
CV118 sets the amount of time the ditch lights stay flashing after the horn (F2) is deactivated.
The time is measured in 1/4 second intervals, for a hold time of 5 seconds put a value of 20 in
the CV118.
✓
One last thing: Set CV35 to 0 so output 3 is not also controlled by F1
Mars Light:
What we want to do:
➙
Use output 3 (marked A on decoder) for a Mars light.
➙
It is to be on in the forward direction only
How to do it:
✓
Output 3 is already activated by F1 (factory default setting of CV35=4).
✓
Configure output 3 as a forward only Mars light. Set CV122 to 9. We get the value of 9 by
using 8 (Mars Light) plus 1 (output operates only in forward direction)
Rule 17 lighting:
Rule 17 refers to how the locomotive engineer operates the locomotive headlights during the
running of the train. The rule varies from road to road but generally requires the dimming of the
headlight(s) when in a siding waiting to meet another train, passing through passenger stations o r
moving within yard limits.
What we want to do:
➙
Use output 1 for the Headlight
➙
The headlight is to be on bright in both directions of locomotive travel
➙
We also want to be able dim the headlight
➙
Use output 2 for the rear light. It is to come on in reverse, off in forward
How to do it:
✓
Output 1 is already activated by F0 (factory default setting of CV33 =1).
✓
Configure output 1 as a standard output, on in both directions, yet dimmable when F4 is
activated. Set CV120 to 32 (20 hex). You can optionally set CV120 to 36 is you want F8 to
control the dimming instead of F4.
✓
Configure the rear light to be on in reverse and off in forward operation: Set CV121 to 2
Switcher:
What we want:
➙
Headlights that dim in the opposite direction that the locomotive is travelling
➙
Use output 1 as Headlight and output 2 as Rearlight
How to do it:
✓
Outputs 1 and 2 are already activated by F0 due to the factory default settings.
✓
Configure output 1 as bright in forward dim in reverse . Set CV120 to 44 (2C hex)
✓
Configure output 2 as bright in reverse dim in forward . Set CV121 to 40 (28 hex)
**Last revised: 17 November 2003
Page 4
D15SR
