The Pain of Automation!
So...here's the story....as I may have mentioned, the New Quinntopia will have an elevated, two track 'metro' line that will 'wind' its way through the city. There will be one station (there should be enough large buildings in the city so that you don't get the sense this is merely a 'loop'). I want the metro trains - each going opposite directions - to automatically stop for the station, wait a few minutes to passengers to load/unload, and then accelerate away from the station. I would also like a couple of signals to handle minimal signally duty.
Easy, right? Well, part of my problem is my interest in using newer / different technology from Europe. So after doing some initial browsing of potential solutions to how I could accomplish the above solution, I ignored all the logical and practical solutions I read (Lenz ABC, Computer Control, etc... for various reasons) and decided to try and use the signalling system from Viessmann.
So I've acquired two Viessmann 5224 Signal Control Modules and two 5228 Train Control Relays to go with them to control signals, which I've connected to small loop of track with appropriate 'gaps' and contact points to activate these relays (thus the photo at top!). But these are not enough (apparently, as I'm learning).
Its funny how wiring diagrams always make things look sooooo simple!
Here's what I think might work.
A DCC Bitswitch Basic Brake On DC Signal Generator and a DCC Bitswitch Timed Stop Bitswitch.
These are 'on order' and apparently will take some time to get to me as they are in the process of manufacturing. Which means rather that figuring out the precise electrical and wiring arrangement I need for my two track elevated line, I'll have to wait and work on other projects. Which will likely be the station and the elevated structure itself, which still has plenty of work needed. I'm looking forward to providing an update on my attempt to get some automation 'the hard way' (in retrospect, the Lenz ABC system is probably the easier and more standard way to go, but I'm too deeply invested in my own dumb solution to turn back now!) so stay tuned!
NOTE: Why I chose not to use the Lenz ABC method: they require decoders from Lenz and others that can detect the right asymmetric signal (whatever that means! People put up diagrams of an 'asymmetric symbol' which I suppose they think is helpful, but is meaningless to me!), but since I have decoders from various producers, I didn't want to start removing/reinstalling decoders if I could avoid it.