This part is a kind of semiconductor called KV-24DR.

Function of this product has (KV Series) Specifications.

Manufacturers : Keyence

Image and pinout :

Some of the text within the PDF file :

Specifications Input specifications of basic unit Model No. of inputs Input common Maximum input rating Input voltage * 1 KV-16 KV-24 KV-40 10 24 16 COM is connected internally. 26.4 VDC 24 VDC, 5.3 mA/5 VDC, 1.0 mA 10 ms (Typical) 10 µs when HSP instruction is used Variable in 7 steps from 10 µs to 10 ms while special utility relay 2813 is ON (Set by DM1940) 10 µs (Typical) 30 kHz (24V±10%) Relay replacement Output frequency Built-in serial resistance Model No. of outputs Output common Output type Rated load Peak load current KV-16 6 Visual KV Series Output specifications of basic unit T KV-24 T KV-40 T KV-16 R KV-24 R KV-40 R 8 16 6 8 16 1 common Each common terminal is independent. Transistor output (NPN) Relay output 30 VDC 0.3 A (503 and other) 0.1 A (500 to 502) 0.2 A (500 to 5 [ ... ]

KV-24DR PDF Datasheet Download