• Interface modules for linking the ET 200MP to PROFINET
• Approved in accordance with EN 50155, EN 15121, EN 50124, EN 50125 and EN 45545 railway standards for use in rail traffic
• They handle data exchange with the PROFINET IO 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 500 ms (max. 12 I/O modules)
• Media Redundancy Protocol (MRP)
• Shared device on up to 2 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

As of firmware version 2.0.0, the SIPLUS ET 200MP interface module IM 155-5 PN ST TX RAIL offers the following new functions:

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

SIPLUS ET 200MP interface module IM155-5 PN HF T1 RAIL features the following additional functions:

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