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!

QSI Automatic Headlight and Reverse Light Configuration, CV 55.70.1 & 55.73.1

2015 views
10 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    September 2003
  • 10,582 posts
Posted by mlehman on Wednesday, February 27, 2013 6:12 PM

Mike,

Thanks for your help. It broke the logjam some on figuring out QSI. I'm digging into other things now I wanted to fiddle with, so your assistance has been a very welcome.

Mike Lehman

Urbana, IL

  • Member since
    September 2003
  • 10,582 posts
Posted by mlehman on Wednesday, February 27, 2013 9:10 AM

Joe,

Yeah, I haven't made the leap to Decoder Pro yet. If I was all-Tsunami, I wouldn't even worry about that, but things like this do make me think you need some crystal ball or savant medium to intercede with the Gods of DCC.Left HugDevilRight Hug

Mike Lehman

Urbana, IL

  • Member since
    July 2006
  • From: Pittsburgh, PA
  • 1,796 posts
Posted by JoeinPA on Wednesday, February 27, 2013 8:03 AM

Mike:

Now you know why JMRI is so popular.

Joe

  • Member since
    September 2003
  • 10,582 posts
Posted by mlehman on Tuesday, February 26, 2013 11:58 PM

Mike,

Great, very useful. Thanks! I think I can mangle my way through. I've already shut down things for the evening, but should have a chance to give it a try tomorrow.

Mike Lehman

Urbana, IL

  • Member since
    April 2012
  • From: Denver, CO
  • 771 posts
Posted by middleman on Tuesday, February 26, 2013 11:52 PM

For your rear light:

 First figure out what you want your REAR light to do by adding the numbers from below.

moving forward:              off = 0    dim =1   bright =2       (Choose one)

stopped from forward:     off = 0    dim =4  bright =8                  "

moving in reverse            off = 0    dim =16   bright = 32            "

stopped from reverse      off = 0     dim =64   bright =128           "

Add up the values that you chose.

Set cv 49 to 73

Set cv 50 to 1

Set cv 55 to the number you came up with from the four running conditions.

"Hope I haven't muddied the waters,

Mike

  • Member since
    April 2012
  • From: Denver, CO
  • 771 posts
Posted by middleman on Tuesday, February 26, 2013 11:27 PM

One more thing,Mike;

'Not sure about the programming track,but if you do this on the main,and cv 62 is set to 1,the speaker will read back what your doing."CV (x) = (y)" etc.  Also,if you want to know what value a cv curently has,set cv 64 to the # of the cv you want to know about.For instance,if you want to know what value is in cv3(Acceleration),set cv 64 to 3. Engine will say "CV3 = whatever value it currently has.  To do this for the headligtht cv set cv 49 to 70,set cv 50 to 1,then set cv 64 to 55. Engine should say "cv 55.70.1 = 86 or whatever it's currently programmed for..

  • Member since
    September 2003
  • 10,582 posts
Posted by mlehman on Tuesday, February 26, 2013 11:13 PM

Mike,

Hey, thanks! that's helpful, as at least I know where to put numbers to make this work. I hate to sound like I'm whining, but QSI brings that out in me (I've managed to get over whining about Digitrax...mostlySad)

What I want for the reverse lights is for anything in reverse to be dim or completely out. I understand brightness is adjustable, but would rather not touch anything beyond the simple stuff with QSI at first (in the likely vain hope that I'll eventually figure it out.)

Mike Lehman

Urbana, IL

  • Member since
    April 2012
  • From: Denver, CO
  • 771 posts
Posted by middleman on Tuesday, February 26, 2013 10:54 PM

Mike:

I use the prodigy advance,but I think this should work for your's,too,as long as Nce can handle decimal values for cv's.

This assumes that cv 55.70.0 is already set to 1 (which is the default setting)

For the headlight:

Set cv49 to 70.   or 01000110 (if binary)

Set cv50 to 1.     or  00000001

set  cv55 to 86.  or  01010110

This should give you a front headlight that  is bright when moving forward,and dim when reversed or stopped. If you want the light off when stopped,set cv 55 to 18  (00010010).

What do you want your rear light to do when (A)going forward -(B)stopped from forward- (C)moving in reverse -(D) stopped from reverse?

 I agree - their explanations could be clearer. All that warehouse stuff instead of saying "before setting this value in cv55,first set cv 49 to 70,and cv 50 to 1...

Mike

  • Member since
    September 2003
  • 10,582 posts
QSI Automatic Headlight and Reverse Light Configuration, CV 55.70.1 & 55.73.1
Posted by mlehman on Tuesday, February 26, 2013 10:19 PM

OK, I'll admit it right off. I do NOT want to learn how to manage my own way through the 400+ pages of the QSI DCC Ref Manual. Sigh

I just want the lights on my Atlas C420s to go On when in forward and Dim when in reverse. That's all, nothing about programming a trip to the moon or anything else exotic, which I'm sure QSI does wonderfully for those few who can appreciate all the bells, whistles, dilithium-flux-capacitor management, etc.

I also haven't a clue about getting anywhere past the first 2 digits for the wacky long CVs that QSI uses once I have the suitable string. Can someone also explain how to enter whatever string is needed? I vaguely understand about the existence of some warehouse accessed through CV 49, but after reading through that several times, I'm more confused than when I started, when I thought I could just change a couple of numbers, like in all those other less Olympian decoders.

My DCC system is NCE.

Mike Lehman

Urbana, IL

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!