PLC: Sensors and I/O Series--General Sensors
Part 1 of the Sensors and I/O Series explains different types of sensors and what they sense.
Explain many types of sensors and what they sense (prox, capacitance, temp, current, photo)
Young lady at dental firm said plc is stupid without sensors.
I have seen catalogs form vendors with 1000’s of different photo eyes
Some sensors will be two wires, some three and four wire.
Mainly Three different types of outputs: Digital (solid state – or relay) – analog and serial
Watch specific videos on the three types.