What I would like to do is get the signal of a parked train, say wires and only offload if there is less than a certain amount in my network. I assume it to be something like the following:
Signal from Train Stop on green wire
Signal from decider on red wire (Decider has a input of L - limit and then the output of a roboport for logistics)
If signal from red (wires) AND green (wires) then output "1"
Given that - 0 AND 0 = 0,...... 1 AND 1 = 1 this should work right ?
This should be expanded to coal, plates etc, based on what the train has (I have no mixed trains)
Here is a screen shot of the current, non-working layout
(Edit - Had the wires the wrong way around
