Siemens 6ES7222-1BF20-0XA0 Programmable Logic Controller Module

Siemens 6ES7222-1BF20-0XA0 is an EM 222 digital output expansion module for the SIMATIC S7-200 PLC family, delivering eight discrete 24 V DC outputs (DO8) to extend a S7-200 controller’s I/O. Each output is rated for up to 0.5 A, enabling direct control of moderate 24 V devices such as relays, indicators, or small loads without additional interface circuitry. The EM 222 plugs into the S7-200 backplane and is powered by the system’s 5 V logic supply, expanding the controller’s output capability without a separate controller. This specific part number corresponds to the eight-output EM 222 variant (6ES7222-1BF20-0XA0) and is commonly listed by Siemens-approved distributors under the same code. Typical applications include compact automation panels and small machines where eight extra 24 V outputs are needed for sequencing, signaling, or device control.