The Omron CP1E-N20DR-D is a Programmable Logic Controller (PLC) from the SYSMAC CP1E series. It is a "N-type" (Application) CPU unit with a built-in 20 I/O points. It operates on a 24 VDC power supply, features 12 DC inputs and 8 relay outputs, and includes built-in RS-232C and USB ports for communication and programming.