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NCE Advanced Consisting

Posted by on Mar 6, 2017 in Tips DCC Systems, Tony's Tips |

Printed with permission by Dave Heap and the NCE Yahoo Group

Setting up an Advanced Consist with NCE

  1. Assume you have three locos, numbered A, B & C you wish to consist.
    1. On the NCE throttle press <CONSIST SETUP>
    2. Press <ENTER> to select an advanced consist
    3. Press <ENTER> and proceed to the next step
    4. Follow the prompts to set up the three locos in consist with loco A as the lead, Loco C as the rear and loco B as mid-consist.
  2. The system will suggest a consist address X. You should NEVER change this and you should NEVER remember it. For a technical justification of these assertions see the addendum towards the bottom of this page.
  3. Let us assume the loco decoders only support three functions; headlight, bell and horn. These three functions are all only relevant to whichever loco in the consist currently is driving the consist, i.e. contains the crew to manipulate the lights, bell or horn.
  4. In this case you should have already programmed CVs 21 & 22 in all three locos to a value of 0. If not, never too late, you can do it with POM now [Program on Main].
    1. For the slightly more complicated situation of how to handle decoders with other functions applicable to all locos in the consist, such as dynamic brakes or sound mute, see addendum.

NCE Pro Cab

Controlling an Advanced Consist with NCE

Assume the consist will be hauling a train with loco A leading and loco C coupled to the train. Climb aboard loco A with your scale crew.

  1. Press <SELECT LOCO A>
  2. Press <ENTER>
    1. The throttle should display <CON: A>
  4. Turn on the bell, blow the horn, turn on the headlights and head off down the track.
    1. Loco A is the only loco that will respond to the function commands you just gave.
    2. Locos B and C will remain dark and no horn will sound.

Assume you have reached your destination and you wish to run around your train prior to returning with the train (maybe after some loading, unloading or switching). Do exactly what a real loco crew would do; grab your grip (not forgetting to turn the headlight off first), disembark loco A with your scale crew, walk to the other end of the consist and climb aboard loco C.

To do this you:

  1. Press <SELECT LOCO C>
  2. Press <ENTER>
  3. The throttle should display <CON: C>
  5. Uncouple, back off from your train, run around and couple up to your train
  6. When ready to depart, select DIRECTION FWD, turn on the bell, blow the horn, turn on the headlights and head back up the track.
    1. Loco C is the only loco that will respond to the function commands you just gave.
    2. Locos A and B will remain silent and dark.

That is all there is to it. You have operated the consist in a prototypical fashion, simulating climbing aboard each end of the consist in turn by selecting the appropriate loco address displayed on the loco cab side. Note that the FWD direction is defined by which loco your crew is aboard, and the headlights, bell and horn function only on the loco the crew is currently aboard.


How to set CV21/22 correctly for consist-wide function commands

  2. Configure the bits in CV21/22 in every loco so that only those functions applicable to whole-of-consist are on. Leave the rest off.

For example, with LokSound diesels with Full Thottle, the functions applicable to whole-of-consist are:

  1. F4 dynamic brakes
  2. F7 Switching Mode
  3. F8 prime mover startup/shutdown
  4. F9 Drive Hold
  1. Using JMRI, configure cv21 & cv22 with the functions you want to respond to the consist address and it does the hard work for you. We [Tony’s] rarely program using the throttle. It is too difficult when there is a much easier way.

Why you should never remember or need to use the short consist address <X>

  1. You should never change the consist address suggested by the NCE throttle when setting up a consist. The command station knows better than you. It keeps track of which consists you have set up and makes sure you do not accidentally try to set up two consists with the same short address.
  2. When you wish to break up a consist, you simply press:
    1. CONSIST CLEAR followed by either the lead or rear loco address.
    2. The command station looks up its internal consist table, determines the short consist address and sends an NMRA standard Consist Clear instruction to that address.
  3. If you wish to remove an individual loco from a consist:
    1. Press CONSIST DEL <loco number>
    2. Press <ENTER>
    3. The command station simply sends an NMRA standard Consist Clear instruction to <loco number>, even if it does not think the loco is in a consist.

If you wish to take your consist to another layout, you should always re-create the consist on that layout so that layout’s command station knows about it and you are not using an address conflicting with a consist already on that layout. Even if that layout does not have a consist aware command station, the host should have a list of in-use consists and can advise you accordingly.

If you bring a consist onto your layout from another layout, either your own consist returning or a guest’s consist, you should firstly attempt a CONSIST CLEAR <lead loco> instruction (in case it is yours returning) and then recreate the consist.

If you have decoders which to not honor the NMRA standard Consist Clear instructions (such as some MRC decoders), you can still use POM CV19 commands addressed to the loco address. Locos always respond to both normal and consist addresses with POM.

If you really want to know the short consist address, you can always do a BROWSE CONSISTS (shortcut is PROG 9) and it will tell you all you need to know.

If you try to operate the loco by selecting the short consist address (and you have correctly set up CV21/22 as NMRA RP9.2.2 intended) you will not be able to control functions such as lights or bell or horn.

Why waste time and effort keeping paper records when the NCE command station is already keeping records for you?

You can recover from any situation by using solely the loco address already displayed on the loco itself (unless you have somehow changed the normal loco address and in that case is back to the program track.