I have project to create a plc to control model train with .Net Gadgeteer on FEZ Spider II Mainboard.
I am software developer having very some knowledge on hardware and electronic
At first, I will have 48 digital inputs and 50 digital outputs.
For output, I test MaxO modules and everay things are ok.
My problem are on digital inputs, I don’t find any modules.
Do somebody can guide me ?
Can you tell us more about the digital input requirements, whether you need pure digital input or whether you were expecting interrupts ? What are they connected to - track position sensing (and if so what kind - reed switches of some kind?) or control input from a human?
It will be pure 48 * digital input, coming from button (point position command), other human controls or train presence signal.
FEZ Spider II signals will be isolated from Train signal by K1010B photocoupler.
I check DL40, it seem ok, can I chain modules like Max0 to multiply digital inputs ?
IO60P16 seem a little more hard - some source code example ? where make the request ?
I import DL40_43 module in my project and try to use public byte ReadRegister(byte address)
I don’t understand link between address and pin mark on module (ex: p0.8, P3.1…)
Can you help me ?
I look for to catch an incoming signal +5V.