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What are CVs for?

With CV settings you can change the behavior of vehicles as well as the functions.

The values can be changed using:

For some values, multiple functions can be selected.
The individual values are added together.
e.g. CV27 1 battery test switch off + 2 light sensor switched off: enter value = 3

Most updated CV-List DC07 and DC08

Most updated CV-List DC07 and DC08 as PDF

Hier you will find old lists for previous decoder types like DC01, DC02, DC03, DC04.
[CV-Liste DC04] [wo-ist-was_2009]

Basic settings

Caveat: If you have changes to many settings and you do not know what to do, first, carried out a RESET though (CV59 = 3) are .>br>
With just a few CV changes the behavior of a DC-Car's is extremely variable.
For this purpose, either a Progset is required which connectes to a digital station, communication is done via IR sensors at the front or
a CV-Programmer which communicates through the Update connector with a PC using the free CV programmer software.

There are settings for:

  • Operation e.g. Lights interconnect, servo operation
  • Behavior, for example, Braking, accelerating, flashing light timing
  • Technical Settings e.g. Battery test, trailer connected
  • Technical settings e.g. Address, DC-Car-Booster, PC-Transmitter

The most important are listed her:

0 = Factory setting
1 = Disable battery test
2 = Disable light sensor
4 = -The blue light is replaced from F5 to F3
-Front flashers is replaced from F6 to F4
-F5 and F6 don't have a function anymore
8 = Disable Reed switch

When you disable diferent functions you have to add the separate values.
The result must be programmed in CV27.
Example: Set the value 3 in the CV27, if you want to turn off the battery test and the light sensor.</td></tr>

148 3,6 Volt LIPO
132 3,6 Volt NIC/NIHM (3 cells)
099 2,4 Volt NIC/ NIHM (2 cells)
049 1,2 Volt NIC/ NIHM (1 cell)

Addresses beneath 127 are simply set.
Addresses above 127 are set with 3 parameters.
Take care: just don't use 128 while these bits setting is sensitive for malfunction.
There is a program for calculating CV values.
00 = Short DCC Addresses are used
32 = Long DCC Addresses are used

0 wait for a drive command or
1 Accelerate from speed step 1 etc.</td></tr>
CV1Technical Setting Address up to 127
CV2Slowest speed for speed step 1
CV5Fastest speed for speed step 28
CV19Soft braking and accelerating (from May 2013 software)
CV20Activate towing and IR feedback
CV21Activating receiver for DC-Car-Booster or DC-Car-PC-Transmitter, Servo operation
CV24Lights permanent switched on, Headlights, Blue lights
CV27Technical Settings Reed switch, Battery test, Light sensor etc.
CV28Define battery test voltage settings:
CV29Usage of long or short address
CV48Braking by preceding vehicle
CV53Acceleration in the lower speed steps
CV54Acceleration in the upper speed steps
CV60Light outputs 2, 3, 4 for driving light
CV69Start after power on
CV98Timing +2 or -2 speed steps
CV100Vehicle type
0 = General

1 = Lorry short
2 = Lorry long
3 = Lorry with trailer
4 = Trailer
5 =
6 = Agriculture (Tractor etc.)
7 =
8 = Delivery van (Sprinter usw.)
9 = Car
10 = Emergency vehicle [Transmitter is switch off at the stop]
11 = Emergency vehicle [Transmitter is switch on at the stop]
12 =
13 = Garbage truck , Post etc.
14 = Bus [Transmitter is switch off at the stop]

15 = Bus [Transmitter is switch on at the stop]
CV111Hall sensor activated 1 or 123 with Light 2 active at the stop

Multiple values ​​common benefit

If there are multiple values ​​for a CV these are added.
Bit values ​​means calculating together:
If several settings are possible at a CV, the "bits" are added.
e.g. in CV24 (or CV59)

  • Light Sensor OFF = 1
  • Battery Test OFF = 2

Together makes a value 3 plus

  • Reed switch disabled = 8

adds up to 11 as the value of this CV

In the CV-Programmer with the software for this purpose several fields are simply marked. The summing up the program does.
At the same time it checks for conditions. This can result in:

  • A vehicle decoder is not suitable for this CV value -> Update required.
  • The CV-Programmer software is not up to date and provides the opportunity not. (Update required -> The current CV-list ahead of the software always a few weeks.)


Bus with IR LEDs switch off at the bus stop

With Hall sensor, without IR LEDs and interior light (Light 2) at the bus stop


Note: A second "bus" still responds to the distance signal!

Bus with IR LEDs switch on at the bus stop

With Hall sensor, with IR LEDs and interior light (Light 2) at the bus stop


Gl1-46-7-Engine 2.4V

Use of 2,4 Volt with a diode 1N4001 in series with the motor


Gl1-46-7-Engine 1.2V

Use of 1,2 Volt


Lipo-Akku with 1.2V Motor

Car (Faller®) with Lipo battery 3.6V without diodes, with permanent Light


Activating the battery test

CV270 or 1
CV283,6 Volt with a diode 130
CV282,4 Volt 120
CV281,2 Volt 55
CV190 Vehicle drives with speed step 28, blinks with headlights and brake lights
CV1916 Vehicle stops and blinks with headlights and brake lights

The values are best determined experimentally.
If the value is too high, the brake lights and the headlights go already on slopes or tight corners.
If it is too low, there is no "battery alarm".

CV19=0 : Vehicle is traveling at constant light. The battery is below the limit. Light goes out. Since this increases the battery voltage again no further "light switches". The vehicle starts without further light.

CV19=1 : it may happen that the vehicle stops and the battery recovers.
If the voltage is again high enough, the car jerks ago.

Related subjects

CV-Programmer DC-Car-Booster PC-Transmitter