This XPSAR safety module monitors emergency shutdown pushbuttons, limit switches and light curtains.It meets the requirements of Performance Level PL e/Category 4 conforming to standard EN/ISO 13849-1 and SILCL3 conforming to EN/IEC 61508 and EN/IEC 62061.It can be used for monitoring emergency stop circuits conforming to EN/ISO 13850 and EN/IEC 60204-1 and electrical monitoring of switches activated by protection devices conforming to standard EN/ISO 14119.And for monitoring of type 4 light curtains conforming to EN/IEC 61496-1 that have solid-state safety outputs with test function (light curtains XUS L).It is compatible with emergency push buttons, limit switches and safety light curtains, the 3 most common safety sensors in the industry.It has additional solid-state output for communication with PLCs about safety status of your process.