SIPLUS ET 200SP IM155-6PN HF TX rail based on 6ES7155-6AU01-0CN0 with conformalcoating. -40 +70 C. OT4 with ST1/2 (+85 C for 10 minutes). 2-port interface module 1 slot for BusAdapter. max. 64 I/O modules. and 16 ET 200AL modules. S2 redundancy. multi hot swap. 0.25 ms. isochronous mode. optional PN strain relief. including server module (6AG1193-6PA00-7AA0)