This is baffling me no end.Right,where to start?I bought this Class 18.1 C...was 3614 if i remember right.It ran on address 20 and i had it on my mobile station at first and then onto the Central station.I packed the mobile station away.

I traded this loco with Koert for another BR41 and all was dandy.I ran the 3614 around my layout here before he took it.It went lovely.

He took it home,and his CS is in for repair so he is using the old 6021 or whatever they call it.The one with all the little colored buttons....nada,the train did not want to register or run on adress 20.

So he whipped his mobile station out....adress 20,still nothing.I thought that maybe between here and his place it fell or something and that was that.He brought it back here yesterday,we put it on my layout...it goes awesomely.

So how do you smart people explain this?Can a train only be registered on adress 20 a certain amount of times,or (as i would believe)is 20 20????

Anyone had this before?Thanx in advance.

Ta Ray.The adress is 20.Runs on my mobile station on 20 and on my CS as 20.

But it wont run on Koert's mobile station at that adress.All his other trains are running fine,so its not a wiring problem at his place.

It runs neither on his MS nor his 6021.You pack it in the box....bring it back here,it works fine.

Maybe it likes it here...

Regarding the 6021, if running with the DIP switches 1,2 & 3 on - the LME03 chip (which it is in the 3614) in the decoder will not understand what's on the track.

I did some thorough testing with the 6021 many years ago, and the 3614 was the LME03 loco I used...
See https://www.marklin-user...tal/6021dipsettings.html

DIP 1,2,3 on is the optimum setting for newer decoders (6090 and onwards) but older stuff have problems with that setting...

I suppose your friend should select 3614 from the MS database and then change the address of that entry to 20. First make sure no other loco has 20, which also might be the case here... I suppose the MS database contains the protocol parameters for the really old decoders too, so if you have a "modern" loco on the address 20 - it may as well simulate "6021 1,2,3 On"... I suspect the MS sets the "new" MM protocol by default when registering an ad-hoc address...

Now I have checked. If I select 3614 and change the address to 20, the MS sends "new" Motorola packets on address 20, with a spacing of approximately 6.1 ms. So the MS isn't smart enough (not mine at least) to switch to the "old" Motorola format for the old loks. This might be different between MS program versions. Mine says 1.0 4010.