Trains.com

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

How do you tell the engine decoder number on used DCC equipped engines?

25018 views
45 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    July 2008
  • 1,206 posts
Posted by mfm37 on Tuesday, February 10, 2015 5:56 AM

Simplest thing to do if you don't know the address is just program it to the address you wish. No real mreason to know what the wrong address is. Just give it one you like and play trains.

Martin Myers

  • Member since
    July 2006
  • From: Bradford, Ontario
  • 15,797 posts
Posted by hon30critter on Tuesday, February 10, 2015 12:14 AM

Hi Productionmanager:

In case nobody has said it so far, Welcome to the forum! Welcome

We can answer your question better if we know which NCE system you have. Then we can walk you through the steps needed to identify the locomotive's address if the above explanations haven't answered your question.

Dave

I'm just a dude with a bad back having a lot of fun with model trains, and finally building a layout!

  • Member since
    July 2006
  • From: Bradford, Ontario
  • 15,797 posts
Posted by hon30critter on Monday, February 9, 2015 11:58 PM

David:

Your answer is correct, but I think you missed the fact that you are responding to a modeler who has, by his own admission, very little experience with DCC.

If you really want to help then I would politely suggest that perhaps you could try being a little less brief. Your expertise is wasted if the OP (and many of the rest of us poor souls) can't understand your answer.

My 2 Cents

Dave

I'm just a dude with a bad back having a lot of fun with model trains, and finally building a layout!

  • Member since
    December 2007
  • 993 posts
Posted by hobo9941 on Monday, February 9, 2015 11:05 PM

Try and read back CV1.

  • Member since
    February 2008
  • 8,877 posts
Posted by maxman on Monday, February 9, 2015 8:33 PM

Steven Otte
*** Correction: There's only one set of contacts on the plug-in panel on our PowerCab. But it can supposedly handle programming-track functions. I don't know how, but it does.

Thank you.  I thought that I was losing it for awhile there.  At our club we have the 5 amp PowerPro command station for the main layout.  We also have a PowerCab connected to a separate track at a bench not connected to the layout in any way.

Down at the lower left corner of the cab is a Prog/Esc button, which takes you to the cab menu.  First press of the button takes you to "program on the main", and fourth press takes you to "use program track".  So if someone has an issue with a loco we put it on the test section and see if it will run there.  We can also make the normal on the main programming.  If for some reason the loco's decoder is "confused", or the loco has not been previously programmed, we switch the cab to the program track mode and perform those functions.

Those individuals who only have the PowerCab can, as Randy said, connect it to the NCE Auto Switch which allows them to have a separate program track.  Now, how it does this I don't know, but somehow it seems to know if program on the main or use program track is selected on the PowerCab.  Like the 5 amp Power Pro command station, one cannot have the programming track and the main in operation at the same time, at least with the basic PowerCab system.  There are add-ons that can expand the PowerCab if more power is required.  I don't know if the addition of these items changes the "you can only use one option" thing.

Possibly a topic for the DCC Corner column?

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Monday, February 9, 2015 7:18 PM

Steven Otte
 
maxman

 Umm, okay.  I stand corrected.  All the PowerCabs we have at the club have a single set of wires that goes to the fascia mounted panel.  You can select on the PowerCab either ops mode or programming track.  I have never seen another set of connection points.

Have they added something new?

 

 

 

I believe the program track contacts are on the back of the fascia-mounted panel, rather than on the cab, which as you noted has only one jack for connecting to the panel.

*** Correction: There's only one set of contacts on the plug-in panel on our PowerCab. But it can supposedly handle programming-track functions. I don't know how, but it does.

 

 It simply switches what signals it sends out, depending on if you are in run mode or a program track mode. Same as the Digitrax DB150 in the Empire Builder sets or the Prodigy Express. The danger, of course, is if you forget to take all the other locos off the track, anything sitting on the rails will be programmed. So you need either a manual switch to disconnect the majority of the layout and leave just a program track live, or you need something like the Auto Switch from NCE, which also works with the Digitrax DB150, which has 2 sets of terminals, one for a program track and one for the main, and automatically disconnects the track part if you go into program mode. Other systems, like the PH Pro and the DCS100 in the Digitrax Super Chief sets, have this built in and have 2 sets of terminals right on the unit, one for program track and one for mainline.

                            --Randy


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    November 2014
  • 14 posts
Posted by Productionmanager on Monday, February 9, 2015 12:14 PM

Thanks for all the information.

I have not bought the engine as yet, but it seems like I do have options to figure out the address number should I make the decision to proceed.

  • Member since
    December 2004
  • From: Bedford, MA, USA
  • 21,483 posts
Posted by MisterBeasley on Monday, February 9, 2015 10:27 AM

If you have a train shop nearby, you could take it there and explain the problem to them.  They will likely have a system already set up, and they can guide you through the process.  The same goes for a train club or even a train show.

It takes an iron man to play with a toy iron horse. 

Moderator
  • Member since
    May 2009
  • From: Waukesha, WI
  • 1,764 posts
Posted by Steven Otte on Monday, February 9, 2015 10:12 AM

maxman

 Umm, okay.  I stand corrected.  All the PowerCabs we have at the club have a single set of wires that goes to the fascia mounted panel.  You can select on the PowerCab either ops mode or programming track.  I have never seen another set of connection points.

Have they added something new?

 

I believe the program track contacts are on the back of the fascia-mounted panel, rather than on the cab, which as you noted has only one jack for connecting to the panel.

*** Correction: There's only one set of contacts on the plug-in panel on our PowerCab. But it can supposedly handle programming-track functions. I don't know how, but it does.

--
Steven Otte, Model Railroader senior associate editor
sotte@kalmbach.com

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Monday, February 9, 2015 10:11 AM

 Only if you also add the Auto Switch they sell, that gives you a seperate connection for the program track that automatically switches when you select a program mode.

              --Randy


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    February 2008
  • 8,877 posts
Posted by maxman on Monday, February 9, 2015 10:06 AM

richg1998
If he has the Power Cab, there is one set of contacts used also with the program track option. I have the Power Cab.

Umm, okay.  I stand corrected.  All the PowerCabs we have at the club have a single set of wires that goes to the fascia mounted panel.  You can select on the PowerCab either ops mode or programming track.  I have never seen another set of connection points.

Have they added something new?

  • Member since
    October 2006
  • From: Western, MA
  • 8,571 posts
Posted by richg1998 on Monday, February 9, 2015 9:37 AM

maxman

 

 
Steven Otte
On your DCC system, there should be two sets of contacts for wires to the track: one for the mainline, and one for a programming track.

 

Well, yes and no.  If he has the 5 amp PowerPro system, then yes.  If he is at this point an armchair model railroader, it is more likely that he has the PowerCab system.  In that case the answer is no. 

 

If he has the Power Cab, there is one set of contacts used also with the program track option. I have the Power Cab.

Rich

If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.

  • Member since
    February 2008
  • 8,877 posts
Posted by maxman on Monday, February 9, 2015 9:30 AM

Steven Otte
On your DCC system, there should be two sets of contacts for wires to the track: one for the mainline, and one for a programming track.

Well, yes and no.  If he has the 5 amp PowerPro system, then yes.  If he is at this point an armchair model railroader, it is more likely that he has the PowerCab system.  In that case the answer is no. 

Moderator
  • Member since
    May 2009
  • From: Waukesha, WI
  • 1,764 posts
Posted by Steven Otte on Monday, February 9, 2015 9:19 AM

Almost all DCC decoders come from the manufacturer pre-programmed to address 3, as you noted. If it's been changed by a previous user, almost all modelers program the address to the cab number, for simplicity. If the loco doesn't respond to address 3, try the cab number.

If neither works, you still have options. On your DCC system, there should be two sets of contacts for wires to the track: one for the mainline, and one for a programming track. If you temporarily hook up a short section of track to the programming track contacts, and put your engine on it, you should be able to use your DCC system to read the locomotive's decoder address. You can also use the programming track to change the address to whatever you want without having to know the previous address first, or force the decoder to reset to factory settings (address 3 again). Then it will be good as new. Check your DCC system's manual to see how to set up and use a programming track. Good luck!

--
Steven Otte, Model Railroader senior associate editor
sotte@kalmbach.com

  • Member since
    November 2014
  • 14 posts
How do you tell the engine decoder number on used DCC equipped engines?
Posted by Productionmanager on Sunday, February 8, 2015 3:51 PM

I am still exclusively an arm chair modeler as I learn more and begin to formulate a game plan for a layout.

Along the way, I have been buying scenery supplies, cars and other things that I will need when things actually begin.

I was at a local club open house and at their flea market they had a used Proto 2000 GP7 II factory equipped with DCC and sound. The price is fair and it is a road name that I want. They got it from a member estate.

I have a NCE system that I got for Christmas awaiting it's first engine to try.

I know that a new engine has the factory setting defaulted to #3. If I buy this used engine how do I know what the previous owner had it's decoder set to?

Thank You

 

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Users Online

Search the Community

ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
Model Railroader Newsletter See all
Sign up for our FREE e-newsletter and get model railroad news in your inbox!