KB12: Programming CVs Other Than Addresses with DT402

This article was last updated on Nov. 28, 2011, 4:28 p.m. | Print Article | Leave Feedback

There are 1024 different CVs that have been defined to handle many characteristics you might want to use for your locomotives.

Your decoder manual has a complete listing of CVs that are available in specific decoders, what they do and suggested values for each CV.


1.
Place the decoder equipped locomotive you want to program on the programming track. If you are using operations mode programming, the loco you want to program can be anywhere on the layout but it must have a decoder that is capable of ops mode programming installed.

2.
Enter Program Mode by pressing the PROG key. The display will show the last CV and CV Value you programmed. In the case below, it is the last loco address:

3. Select the programming mode you wish to use by pressing the PROG key until the method you want appears in the Mode Indicator. Digitrax recommends using the Pd, or Direct mode for programming Digitrax decoders when using service mode on the programming track.

4.
Turn the L Throttle to begin selection of the CV# you want to program. You will see the semaphore icon displayed on the left of the DT402 display when you are entering CV Numbers. You can dial up the number using the L Throttle or you can use the keypad to enter CV#s 01 through 1024.

5.
Press the R Throttle to activate the CV value. You will see the semaphore icon displayed on the right of the DT402 display when you are entering CV Values. Use the R Throttle to dial up or the keypad to enter the CV value you want. CV values are displayed as decimal numbers (0-255) by default.

Remember that you can press the R Throttle knob to toggle the CV value display between decimal and hex as shown below.

6. Press the ENTER key to program the selected CV value into the selected CV number.

7.
Press the EXIT key to quit programming mode and return to normal operations. You can program as many CVs and their values as you want in a session. When you are finished, press Press the EXIT key to quit programming mode and return to normal operations.

8.
If your command station is a DB150 and you are using any method other than Operation mode for programming, you will need to turn track power back on after you complete programming. Press the PWR key, then press the Y / + key, then press the PWR key to exit power mode. DCS100 does not require this step.

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