B&R Industrial Automation X20SI8110 Digital Safety Input Output Module

The B&R X20SI8110 is a single-width safety digital input/output module for the X20 system. It provides eight safe type A digital inputs and four 24 V DC pulse outputs, consolidating safety sensing and safe actuation in one compact slice that rides on the X20 backplane. Designed for safety-critical automation, it supports evaluation up to PL e or SIL 3, making it suitable for certified applications such as emergency-stop circuits, safety interlocks, and guarded machinery. The module integrates with B&R's SafeIO open safety architecture and communicates over the X20 bus to coordinate signals with a safety controller or PLC, while maintaining isolation between safe and non-safety I/O. With a single-width footprint, it fits easily into standard X20 safety racks, enabling scalable expansion of safety I/O without sacrificing performance or modularity. The product is identified by part number X20SI8110, and its 24 V DC operation aligns with typical industrial safety sensors and actuators.