Looks great you just figure how to see a switch go high with ADC module.
You could make a FA-DUINO for less then $10 and learn a lot more about how things work.
I'm sure you're right but since it is industrial environment I prefer to spend some extra and have a device that will work for yours. Before I found it I was about to get the ruggeduino.
Our system (like many industrial solutions) work on 24V and the FA-DUINO is meant for it. You know what they say - "nobody was ever fired for buying IBM" 
Thats funny I't a arduino that has extra parts . IBM was well IBM they made there parts.
If you look over there the FA-DUINO Clearance Sale Maybe there's a reason for that.
But have you looked at the datasheet it shows how to use a PNP sensor just as I told you.
There maybe a reason for that too Oh I been working in controls for over 30 years.
There's a part I'm not going to tell the name of it but it does a make on break with a delay they come both ways make on break or break on make And is made for delaying relays
Hi
You are almost right. I'm pretty sure the FA-DUINO has it's own board with a different regulator and the relays soldered directly to the board.
I could make (with the great help of the forum members ) a device that will feed from the 24V, get 24V from sensor and have the relay but to be honest, their box alone and the way it is compact and nice worth the company's $$$.
I didn't understand the last sentence. Can you please elaborate?
An image of the FA-DUINO-12RA internals. Any thoughts?
ashtul:
An image of the FA-DUINO-12RA internals. Any thoughts?
Make sure the housing is grounded so the operator can't get electrocuted.
I'm trying to get reading from an industrial photoelectric sensor CX-421-P.
SEE PAGE 290
Just wanted to share the project was was ultimately done using FA-DUINO-12RA.
It receives input from 2 photoelectric sensors (one determines proper position of a box to be pulled out and the other, that the exit conveyor isn't blocked) and one external USB relay controlled by a software which determines whether a box should be pulled out of the conveyor.
The FA-DUINO-12RA is very simple and it can be programmed using Arduino IDE.
Picture attached.
Thank you all for your help!!
