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Consisting: Using same decoder address

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Posted by Brammy on Monday, August 26, 2019 7:52 AM
I run at a club, and we have a range of 99 addresses to use. We have a unique number for the first 2 numbers of an address. So, say my number is 11, I have 11xx free. This can lead to a lot of duplicate numbers if I use the last 2 digits of the road number. Plus, I have run into some weird consisting issues especially if I forget to kill the consist before I take it off the layout. And a few times if I hit a short a certain way it causes issues. Therefore my general rule is: any pair of locomotives I always run together I give the same address and flip the bit for the trailing locomotive. Locomotives that don’t always get run together get their own address. I don’t care about the horns and the bells, and actually like how loud it is with both of them blaring.
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Posted by rrinker on Sunday, August 25, 2019 9:13 PM

 My drawbar coupled FTs have the same address. There's no reason not too. I can't easily separate them in the middle of operation. There's noot much to worry about in terms of lights, there's none on the B unit. Only one has sound, so I'm not worried about 2 horns and 2 bells, although if I did put a sound decoder in the B unit, I would just turn the bell and horn volume to 0, or just disable those F keys. No sense wasting a consist address.

                              --Randy

 


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Posted by RR_Mel on Saturday, August 24, 2019 9:42 PM

Tom
 
I run two sets of E7-ABB locomotives (Cary E7 bodies on Athearn SD40-2 frames) for my passenger service.  Both sets of the ABB configuration are identical, both As and both #1 Bs are powered, the 2nd Bs in each set are not powered (dummy) but have like decoders for the EMD 567 sound.  The 2nd Bs in both configurations are my 4 volt power source for the passenger car lighting.  I have all three decoders in each set configured with the lead A locomotive equipment number as the DCC address.
 
I use F4 on the 2nd B in each set to turn on and off the passenger car lighting.  I only have the sound on for the bell and horn on the lead locomotives but motor sound from all three.  The only special functions in the two E7-As are the MARS light, I can turn the MARS light on and off individually.  The headlights on and off are normal, on in forward and dim in reverse.
 
As both ABB sets are configured as drawbar connected they do not need individual DCC addresses that would need consisting by DCC programming.  I do have individual locomotives that I occasionally run in a consist by DCC consisting but not very often.
 
 
Mel
 
 
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Posted by richg1998 on Saturday, August 24, 2019 9:05 PM

I have done that with a F3 A/B F7 B/A.

The F3 had a decoder in the A that ran the motor and speaker in the A and motor and speaker in the B.

THe F7 had a decoder in each for motor and speaker.

I did it both ways. Always as ABBA. Only three decoders to deal with but CV consisting was nice. I like the different sounds.

The F3 A/B both had the same sound though.

Rich

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Posted by tstage on Saturday, August 24, 2019 8:36 PM

I use the lead locomotive road number for the consist so it makes sense to use the same for addressing both the A- & B-unit.

Tom

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Posted by Autonerd on Saturday, August 24, 2019 8:09 PM

If the locos are always together, and if you'll remember they have one address, then there is no disadvantage to having one address (and a key advantage -- you don't have to worry about the system "losing" the consist as sometimes happens).

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Posted by York1 on Saturday, August 24, 2019 8:03 PM

I use both.  I have an E8 A & B.  They will never run separately, so I have them with the same number.

I also have a consist of two locomotives that will sometimes run separately.  It takes about 5 seconds to make the consist or run them separately.

John  --  Saints Fan  

sol
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Posted by sol on Saturday, August 24, 2019 7:56 PM

CGW121

Creating a consist .with Digitrax is extreemly easy with Digitrax as well. I do not care about sound as I do not use it. I see no advantage to consisting

 

 

Consisting is perfect for when a train has two or more locos that get joined together to drive that specific train but the locos can be used independently when required with their normal address.

 

Ron

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Posted by CGW121 on Saturday, August 24, 2019 6:07 PM

Creating a consist .with Digitrax is extreemly easy with Digitrax as well. I do not care about sound as I do not use it. I see no advantage to consisting

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Posted by tstage on Saturday, August 24, 2019 4:51 PM

PennCentral99
tstage

would it make sense to just program both decoders to the same address?  

if you plan on keeping them together, sure. don't forget you might need to change CV 29 for the rear loco as to “normal forward“

Terry

Terry,

The FTB-units had a definite front and rear because of the exhaust stacks: It was at the rear of the A-unit and towards the front of the B-unit.  So, AFAIK, you would never flip around and operate an FTB like you could an F3B or F7B.  Since they will never be operated separately it just seemed to make sense to program them to the same address rather than two destinct addresses.

 

All,

I'm using a motor-only decoder in both units: A TCS MC2P-UK.  The FTA & FTB operate very smoothly and evenly programmed to different addresses; therefore I know they will operate the same whether consisted together or programmed to the same address.

Tom

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Posted by MisterBeasley on Saturday, August 24, 2019 4:42 PM

That's my reason for consisting, too.  I only want one horn to sound.

On my Lenz system, I can use any loco address in the consist or the consist address to run all locos, but if I use the front engine address, I get the sound and headlight behavior I want.

I don't have to remember consist addresses, and if I break up a consist I don't have to reprogram the decoders.

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Posted by cuyama on Saturday, August 24, 2019 4:02 PM

An advantage to consisting is that the headlights will operate correctly in either direction, etc. Since it is so easy to build a consist with NCE (which I think I remember that you are using), I don't see a good reason not to do so.

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Posted by PennCentral99 on Saturday, August 24, 2019 3:52 PM

tstage

would it make sense to just program both decoders to the same address?  

if you plan on keeping them together, sure. don't forget you might need to change CV 29 for the rear loco as to “normal forward“

Terry

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Posted by CGW121 on Saturday, August 24, 2019 3:51 PM

I use the same address on all locomotives I run together. They run very welll for me.

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Posted by RR_Mel on Saturday, August 24, 2019 3:17 PM

Tom
 
I have like decoders in two sets of E7 ABs connected with a drawbar using the same address and they run very nice, Yes they operate very good.
 
I find it much easier not having to fool around with consisting.
 
Mel
 
 
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Consisting: Using same decoder address
Posted by tstage on Saturday, August 24, 2019 3:06 PM

Greetings -

I have a Stewart FTA-B consist that has the exact same decoders installed in each locomotive but each programmed to different addresses.  Since the NYC operated the FTA-Bs together with a draw bar, would it make sense to just program both decoders to the same address?  Or, is there an advantage to having them with different addresses?

I will ultimately operate them consisted with an NYC F2 (on a Stewart F3 chassis), or maybe with another FTA-B combo for a four-locomotive consist.  The B-units with the latter would be connected together with a coupler.

Tom

http://www.newyorkcentralmodeling.com

Time...It marches on...without ever turning around to see if anyone is even keeping in step.

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