Getting tractors and implements to ‘talk’ to each other

Many farmers have doubtless experienced this scenario before: you buy an implement, at great expense, capable of achieving everything you need, only to realise that your tractor does not have the ability to control the implement or make use of all its functions. You then contact your supplier and discover that neither the implement nor the tractor manufacturer wants to take responsibility, leaving you stuck with an insurmountable problem.

This is a problem that can arise whether