PROGRAMMABLE LOGIC CONTROLLER (PLC) MICRO 850, DIGITAL INPUT TYPE: 24 VDC, NUMBER OF AVAILABLE INPUT POINTS: 28, DIGITAL OUTPUT TYPE: 24 VDC SINK, NUMBER OF AVAILABLE OUTPUT POINTS: 20, MAXIMUM I/O NUMBER: 192, COMMUNICATION PORTS: USB 2.0 /RS-232 / RS-485 / ETHERNET PORT BASE-T 10/100 (RJ45), REF: 2080-LC50-48QVB, MANUFACTURER: ROCKWELL AUTOMATION