SIPLUS S7-300 SM336 F 6AI 15 bit -25...+60 ?C (70 ?C with forced convection) With conformal coating Based on 6ES7336-4GE00-0AB0 . Fail-safe analog inputs For SIMATIC Safety, with HART support, up to Category 4 (EN 954-1) /SIL3 (IEC 61508)/ PLE (ISO 13849)