What it is and what it does
The Siemens 3RG7214-3EK42 is a SIMATIC PXO650 K80 diffuse photoelectric sensor with background suppression, sized at 83x61x25 mm and rated IP67. It operates on 10-36 VDC, delivers a 200 mA NPN output, and offers a sensing range of 0.2 to 1 meter. The output is programmable for light-on or dark-on, and an integrated 0.1-10 second timer handles surplus light detection tasks. Connection is via a 4-pole M12 connector.
