Siemens IM 155-6 PN ST Equipment Manual page 20

Product overview
2.2 Functions
Module-internal Shared Input/Shared Output (MSI/MSO)
The Module-internal Shared Input function allows an input module to make its input data
available to up to two IO controllers (for ET 200SP PN ST). Each controller has read access to
the same channels.
The Module-internal Shared Output function allows an output module to make its output
data available to up to two IO controllers. One IO controller has write access. A second IO
controller can have read access to the same channels.
You can find more information on this topic in the STEP 7 online help and:
● As of STEP 7 V12 in the PROFINET with STEP 7 V13
(http://support.automation.siemens.com/WW/view/en/49948856) function manual
Value status
The IM 155-6 PN ST interface module supports I/O modules with value status.
Additional information on the value status can be found in the manuals for the I/O modules.
GSD file
An additional GSD file based on the schema version V2.25 is available for the previous
PROFINET GSD files. This is only to be used when the engineering tool used does not support
GSD files of the current schema version.
These limitations must be taken into account when using the GSD file with the schema
version V2.25 compared to the GSD file of the current schema version:
• Only IM 155-6 PN ST with the firmware version V4.2 can be configured with GSD V2.25.
Only the IM 155-6 PN ST with firmware V4.2 and compatible successors can be used.
• Functionally, there are the following differences:
– No support for S2 system redundancy
– No support of fail-safe modules
– No assignment of hardware interrupts to organization blocks (OB)
– IRT including PerformanceUpgrade is not supported
– PROFIenergy is not supported on module level (can only still be used on IM)
– No support for MRPD, MRT
– No hierarchical display in the parameter masks
– No configuration check with automatic device naming with topological configuration
– StartupMode: No AdvancedStartup, only the Legacy Mode is supported.
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IM 155-6 PN ST interface module (6ES7155-6AU01-0BN0)
Equipment Manual, 10/2020, A5E03576904-AE