Hi gang.

I just re-assembled one loop of track after cannibalizing everything for the Christmas layout.  This includes moving my dcs tiu which while older has been relatively problem free,  I have a 750 w brick hooked up to the aux input, an a 1000 w brick hooked up to the variable input 1., variable out put one to the track.  I do have the fixed and variable inputs jumpered together, although thats unrelated to this issue.

So I wanted to run a longer train, (ie I was too lazy to find a home for everything on the tracks.  I planned to use an existing two unit lashup in my dcs controller.  I fired up each engine individually to make sure they were responding.  Then I scrolled to the inactive engines, found the appropriate existing lashup, selected it, and then started that lash up.  The engine noise came back up on the rear engine like it usually does.  (I believe I am one rev being in my software updates.)  When I gave a forward command the front engine responded and the rear engine did not.  Of course this resulted in a string line derailment.

Thinking there was something wrong with the diesel trying to push on the rear I took that engine off, grabbed another steamer that had previously been lashed with the lead steamer. Following a similar method, again everything was fine until I told the lashup to roll forward.  Once again the lead engine started rolling, but the rear engine did not. 

Am I missing something here, or is my dcs acting screwy?  If its the dcs acting screwy can someone remind me how to reset it?  Does resetting the dcs mean I will have to re program all my engines into the remote?

Disclaimers

- yes I have the dcs companion.  No I don't know where it is right now.

- I have run these locos in these configurations before and never had this issue.

- The tiu is a rev I

 

May God Bless us all.

Original Post

Just an idea, I would run the engines completely around the loop and check signal. Also put a lit car in the train and watch for dimming. It seems like they aren't getting the commands. You should cycle the direction button twice to make sure they're set the same. Watch the rear engine lights for direction changes.

Try isolating the loop in one place. Did you connect a bulb on the older TIU output? 

If you're running DCS 5.x I would upgrade. There were issues with the old versions. 

" on Sour mash and cheap wine " ??

Why go back to DCC when I have DCS!

Several cars had lights,  as well as one o72 switch.   In one case I started the engines individually,  selected all , and had the two engines both roll forward a couple feet with the train split in the middle.  I know I need to update the software, but it was working before....

I can do the signal check exercise,  but the trailing engines were at different spots.   

May God Bless us all.

Still do the signal check. It might turn out to be the lit cars causing signal problems. Hard to tell from here without just guessing.

Usually something gets hooked up wrong in these cases. Double check all polarity wiring.

remove any TMCC/Legacy products from the rails to test.

" on Sour mash and cheap wine " ??

Why go back to DCC when I have DCS!

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