SIPLUS ET 200SP IM155-6PN HF -40...+60 C with Conformal Coating based on 6ES7155-6AU01-0CN0 . 2-port interface modul IM155-6PN/2 High Feature. 1 slot for SIMATIC BusAdapter. max. 64 Periphery modules and 16 ET 200AL modules. S2 redundancy.Multi Hot swapping. 0.25ms isochronous mode. server module included