Internet PLC Forum

I'm a programmer surrounded by engineers pushing an expensevie A-B solution to putting ~600 photo electric "counters" on production lines across 55 plants and monitoring them (via intranet or logging counts to a database).  

I don't know how to do this but know it is not as expensive as they represent.

Sitting here, armed with your starter kit, a power source and a npn sensor ... how do you connect a sensor to the board?  

Thanks