@ Krypt, theres a new version
https://mods.factorio.com/mod/programmable-controllers

Scrap that...
Why the hell are there 2 Junk Rail mods where one isn't compatible to Farl but both are 0.16? -.-

somehow we get this error:
https://steamuserimages-a.akamaihd.net/ugc/943959514075768335/19ACBCC0B3BDA7A53E275265D044B502195B5812/?interpolation=lanczos-none&output-format=jpeg&output-quality=95&fit=inside%7C2048%3A1152&composite-to=*,*%7C2048%3A1152&background-color=black

Junk Train 0.0.903 from ...

This needs a tutorial and a testmap, maybe some basic stuff like and/or/rs latches to give us some experience with assembler?
Also how to get signals from the network into the cpu and how to find out adresses of the ram/rom to work with them.

just put them all into the schedule list and the train goes to all the stations from top to bottom.
If that wasn't what you wanted you need to setup some sort of combinator setup.

Here you go Choumiko. Just don't ask me how this works because i totally don't know even if i engineered this.
Oh and sorry about that lack of english in there .

Yay i got my Setup working mostly bugfree now. (Reworked the train requester part from scratch)
I've got 1 station for a collector station like several mines.
It waits at "HQ" until a Mine saying it's full. If it's there and empties the mine it goes to another one if there is a Signal from it.
Also ...

go to station x. a fixed value or signal value?

I've got it working somehow. Looks like a mess but i think i've debugged it.
If anyone want to check
http://www.filedropper.com/trainstation_1

You can do some pretty/fun stuff when using train lines and combinators together:
http://i.imgur.com/HrluRJg.png
http://i.imgur.com/gWPQuSn.png
The above uses smart trainstops with the Goto station # signal value to make trains skip stations when they are full and/or leave a station when the ...