By combining the with the PSR-MC42 PSRmini safety relay machine builders can take advantage of IO-Link diagnostics to easily adapt their safety system for an IIoT-enabled future. Capable of connecting up to 30 sensors in a series while achieving SIL 3/PLe, the unit gives machine operators a greater level of protection with simple connectivity, offering an easy RFID noncontact safety door switch system with M12 connections. The safety switch can be connected in a series with Y distributors, bridge plugs, and SAC cabling, making installation of these devices convenient and flexible. The switch is suitable for small to midsize machines, conveyor systems, or robot manufacturing cells with multiple access doors or maintenance panels that require safe shutdown of stored hazardous energy.