Safety Light Curtain Receiver for PROFIsafe Integration
The Siemens 3SF7844-8MD13-0SS1 is a Type 4 safety light curtain receiver from the SIMATIC FS420I series, designed for point-of-operation guarding and hazardous area access control. It offers a 30 mm resolution, a 900 mm protected height, and an operating range of 0 to 18 m, with integrated PROFIsafe bus connection for direct safety communication to a SIMATIC safety controller. Type 4 per IEC 61496-1 means this receiver is rated for the highest level of safety integrity — suitable for applications requiring SIL 3 / PL e performance, such as press brakes, robotic cells, and automated assembly lines where a hand or body part entering the hazard zone must stop the machine within the safety distance.
Deployment Context
The 30 mm resolution and 900 mm protected height cover finger and hand detection.