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!

Yet Another DCC Q - Simultaneous Motion?

1835 views
8 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    May 2006
  • 50 posts
Yet Another DCC Q - Simultaneous Motion?
Posted by southernman on Wednesday, June 7, 2006 10:17 PM
In short, can DCC have, say 3 trains on 3 seperate loops/ovals running at the same time? Or must an engine be still when switching to another unit? I aks because I'm new to DCC, & LOVE having as many trains as possible running at once (love the sound). I love to have trains on loop when I'm working in a switching yard.

Thanks all

Lee
  • Member since
    June 2003
  • From: CANADA
  • 2,292 posts
Posted by ereimer on Wednesday, June 7, 2006 10:54 PM
an engine will continue running at the same speed (assuming level track) until issued another command , in short ... yes
  • Member since
    April 2003
  • 305,205 posts
Posted by Anonymous on Thursday, June 8, 2006 2:09 AM
DCC allows for completely independent movement of engines' speed and direction. It doesn't matter what direction, how fast, or how many.
Moderator
  • Member since
    June 2003
  • From: Northeast OH
  • 17,255 posts
Posted by tstage on Thursday, June 8, 2006 2:12 AM
Lee,

I know what you mean. There's just something very soothing about a train running the loop around the layout.

To answer your question - yes, you can run 3 locomotives on 3 separate loops or even the SAME loop simultaneously. Pretty cool, huh? [tup] Once I read about DCC, there was no way I was going to go down the DC route. It was a no-brainer decision for me.

Tom

https://tstage9.wixsite.com/nyc-modeling

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

  • Member since
    April 2003
  • 305,205 posts
Posted by Anonymous on Thursday, June 8, 2006 3:07 PM
QUOTE: Originally posted by tstage

Lee,

To answer your question - yes, you can run 3 locomotives on 3 separate loops or even the SAME loop simultaneously. Pretty cool, huh? [tup] Once I read about DCC, there was no way I was going to go down the DC route. It was a no-brainer decision for me.

Tom


Ditto for me.
  • Member since
    May 2006
  • From: Northern Illinois
  • 17 posts
Posted by rocketman0739 on Thursday, June 8, 2006 11:52 PM
QUOTE: Originally posted by stuinstra

QUOTE: Originally posted by tstage

Lee,

To answer your question - yes, you can run 3 locomotives on 3 separate loops or even the SAME loop simultaneously. Pretty cool, huh? [tup] Once I read about DCC, there was no way I was going to go down the DC route. It was a no-brainer decision for me.

Tom


Ditto for me.



And me.
  • Member since
    March 2005
  • From: New Brighton, MN
  • 4,393 posts
Posted by ARTHILL on Friday, June 9, 2006 11:02 AM
You can have as many locos running at one time as you can keep track of. I have had four at a time with my two knob throttle and three at a time with three throttles. They work just fine, it is always me that makes the mistake. Doing three trains with three throttles and three operators is easy, if you don't count crashes.
If you think you have it right, your standards are too low. my photos http://s12.photobucket.com/albums/a235/ARTHILL/ Art
  • Member since
    May 2005
  • 7 posts
Posted by ehrliccf on Saturday, June 10, 2006 11:49 AM
I'm planning a reverse loop on my layout. I understand that a reverse loop module will automatically change the polarity to keep the train running in the same direction. I guess it's the track polarity that gets changed (say A to B and vice versa).

What happens in the case where there is a 2nd train on the same loop - how is it affected?
Same thing when the train is reentering the main line - are the other trains affected & how?
  • Member since
    April 2003
  • 305,205 posts
Posted by Anonymous on Saturday, June 10, 2006 11:16 PM
If there are two trains in the loop when it changes polarity, there will be no problem as long as all engines and all metal wheels (including all pickups on cars like lighted passenger equipment) are completely IN the reverse section when the first metal axle crosses the gaps between the reverse and normal sections.

Remember, DCC is not DC -- rail polarity has no meaning as far as engine direction is concerned. That's all done by the decoder. The problem is when the two rails are connected, even briefly.

Try searching the forums for "reverse loop" -- you'll find a whole passel of threads with all sorts of advice, diagrams, and suggestions.

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

There are no community member 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!