Siemens SM1222 8x24V DC Digital Output Module (order 6ES7 222-1BF30-0XB0; newer 6ES7 222-1BF32-0XB0) provides eight 24 V DC digital outputs for SIMATIC S7-1200 controllers. It is designed to switch external 24 V loads—such as relays, contactors, and indicators—under PLC program control. Each output includes a diagnostic LED to indicate on/off status, helping with troubleshooting and system monitoring. The module is intended for DIN-rail mounting within the SIMATIC S7-1200 expansion system and is cataloged as SM1222 DQ 8x24 V DC.
