8 safety inputs 8 control outputs (with 2 test pulse generators) Safety functions: E-stop function; machine control (e.g.PSDI); differentiation between man and material (muting); control modes and operating mode selection Connects to main system via cable gland Category 4 (EN ISO 13849), SIL3 (IEC 61508), SILCL3 (IEC 62061), PL e (EN ISO 13849)