Siemens 6ES7155-6MU01-0CN0 SIMATIC ET 200SP IM 155-6 MF HF Remote I/O Interface Module

The Siemens 6ES7155-6MU01-0CN0 (IM 155-6 MF HF) is a MultiFieldbus interface module for the SIMATIC ET 200SP I/O system, supporting PROFINET IO, EtherNet/IP, and Modbus TCP on the same hardware. It manages up to 64 ET 200SP modules and 16 ET 200AL modules per station, with PROFINET S2 system redundancy and multi hot-swap for module replacement under power.

Technical Specifications

Selection Notes

The MultiFieldbus design runs PROFINET IO, EtherNet/IP, or Modbus TCP from the same station without swapping hardware, which matters when a line mixes Siemens PROFINET cells with EtherNet/IP robots or PLCs from other vendors. PROFINET S2 system redundancy with multi hot-swap supports lines where a station fault cannot stop production, since modules can be replaced while the station stays powered. The 64-module / 16 ET 200AL ceiling and 1,440-byte address space per station set the scaling limit before a second station is required.

Applications

Distributed I/O stations on machines or lines that must serve mixed-fieldbus plant floors — PROFINET-based Siemens controllers alongside EtherNet/IP PLCs or Modbus TCP SCADA — from a single ET 200SP station. The S2 redundancy and hot-swap capability suit continuous-process or high-uptime conveyor lines where I/O station downtime during module replacement is not acceptable.