DIGITAL INPUT EM 221 : 6ES7221-1BF22-0XA0 Categories: PLC - CPU - MODULE, PLC S7-200, SIEMENS. GET INQUIRY Your Name (required) Your Email (required) Phone Number (required) Description Reviews (0) SIMATIC S7-200, DIGITAL INPUT: EM 221, FOR S7-22X CPU ONLY, 16DI, 24V DC, SINK/SOURCE INPUT Add a Review Tags: 6ES7221-1BF22-0XA0, Digital input, EM 221, PLC Siemens, S7-22X CPU, SIMATIC S7-200. Related Products DIGITAL OUTPUT EM 222: 6ES7222-1HF22-0XA0 CPU 222: Simatic S7-200 : 6ES7212-1AB23-0XB0 ANALOG OUTPUT EM 232: 6ES7232-0HD22-0XA0 DIGITAL OUTPUT EM 222: 6ES7222-1EF22-0XA0 ANALOG INPUT EM 231: 6ES7231-0HC22-0XA0