• Interface modules for linking the ET 200MP to PROFINET
• These handle data exchange with the PROFINET I/O controller in the PLC
• Integrated 2-port switch for line topology

IM 155-5 PN BA

• Max. 30 I/O modules
• Shortest bus cycle time 1 ms
• Media redundancy (MRP)
• Shared device on up to 2 IO controllers
• Omission of SIMATIC memory card (SMC); IM replacement without PG using LLDP

IM 155-5 PN ST, IM 155-5 PN HF

• Interface modules for linking the ET 200MP to PROFINET
• These handle data exchange with the PROFINET I/O controller in the PLC
• Integrated 2-port switch for line topology
• Max. 30 I/O modules
• Shortest bus cycle 250 µs
• Linking to the isochronous task of the CPU
• Prioritized fast startup (FSU) with max. 12 I/O modules
• Media Redundancy Protocol (MRP)
• Shared device on up to two I/O controllers (when configuring using GSD file; depends on the respective configuration tool)
• Omission of SIMATIC memory card (SMC); IM replacement without PG using LLDP
• Operation of F modules and PROFIsafe

Starting from FW version V2.0.0, the IM155-5 PN ST interface module supports the following new functions:

• Submodule-granular shared device with up to two I/O controllers
• Configuration control (option handling)
• Module-internal shared input and output (MSI/MSO), i.e. the inputs or outputs of a module can be made available simultaneously to up to two I/O controllers

The IM155-5 PN HF interface module has the following additional functions:

• Shared device on up to 4 IO controllers
• Module-internal shared input and output (MSI/MSO) on up to four IO controllers
• Operation on a highly available SIMATIC S7-400H
• Support for the MRPD function (media redundancy with planned duplication)