How can I switch fuel types at depots through my circuit network?

[Bushdoctor]

Good day,

I've got stations at my LTN depots that request fuel for my trains. I would like to be able to control/switch the requested fuel type 'from a distance', through my circuit network. How do I do this?

Thank you.

[steinio]

That's no Ltn problem at first.

Either you build a circuit network over your whole train network to transmit the fuel signal from a central constant combinator or you use one of several wireless circuit signal transmitters.

Can't recommend you one specific as I have not tested one yet.

Cu, steinio.

[Bushdoctor]

Yes, you are correct, this is not an LTN specific question, but I started searching for LTN depots and fuel and I figured this might be a good section.

Indeed, what I would like is a central combinator (at my HQ) where I can set the type of fuel that my depots should request. The problem is that I don't know how to do that and so I'm hoping for some smart people to tell me exactly how. As in: Which combinators to use, how to connect them and what settings to make.

Thank you for your reply.

[Optera]

Inserters can't remove fuel from vehicles, switching to a different fuel always requires manual interaction.

[Bushdoctor]

Inserters can't remove fuel from vehicles, switching to a different fuel always requires manual interaction.

Unfortunately that's very true. However, with my setup that will not really be necessary. Once the old type runs out, the trains will simply start using the new one.

At my fuel-stations, I've tried requesting the letter A instead of a certain fuel type. Then at my HQ I tried to designate a certain type of fuel to that letter A, but I couldn't get that to work. Probably because I don't really know what I'm doing with those combinators, but I do have a feeling I'm on the right path with what I was trying to do...

I guess this will get more views in the general section, so I'll copy my question there.
Thanks for the replies though!