6ES71556MU010CN0 6ES7155-6MU01-0CN0 Siemens

SIMATIC ET 200SP MultiFieldbus interface module IM 155-6 MF High Feature, PN IO, Ethernet IP, Modbus TCP, max. 64 I/O modules and 16 ET 200AL modules, S2 redundancy, multi hot swap, 0.25 ms, isochronous mode, optional PN strain relief PN security class 1 including server module (6ES7193-6PA00-0AA0)