Siemens Industrial Ethernet Switches SCALANCE X-200 - Manual (Page 256)

PROFINET IO functionality
8.3 HSR configuration in PROFINET IO
SCALANCE X-200
256
Operating Instructions, 12/2011, A5E00349864-19
8.3 HSR configuration in PROFINET IO
With PROFINET IO, the use of MRP rather than HSR is recommended.
HSR cannot be configured with STEP 7.
Note
If you nevertheless want to use HSR with PROFINET IO, please note the following points:

Select the firmware version V3.0 for all modules in HSR mode in STEP 7 HW Config.
If a firmware version V4.0 or higher is selected in HW Config, the parameters for the
redundancy function are always set by STEP 7. STEP 7, however, supports only MRP
mode. This behavior only occurs up to STEP 7 V5.4.
With STEP 7 V5.5, the setting "Parameter assignment of the redundancy is not set by
STEP 7" was introduced.
 If the default settings for the ring ports are used, only one device in the ring needs to be
configured as HSR manager. No further parameter assignment is necessary for the other
nodes.
Create the configuration of the module with Web Based Management, CLI or SNMP before it
establishes a connection to the controller. As soon as there is a connection to the controller,
the redundancy settings can no longer be changed!
NOTICE
If a firmware is downloaded that is older than the firmware already on the device, you will
need to reset to factory settings after downloading the firmware.
If the firmware of an IE Switch X-200 is updated, make sure that the firmware in use is
compatible with the relevant device.
If incompatible firmware is downloaded to the device, it will no longer be possible to operate
the device. In this case, compatible firmware will have to be loaded again with the boot
loader.
You should therefore remember the following restrictions:

SCALANCE X200-4P IRT, X201-3P IRT and X202-2P IRT are compatible with firmware
X200IRT V2.1 or later.
 SCALANCE X202-2P IRT PRO and X204P IRT PRO are compatible with firmware
X200IRT V3.1 or later.
 SCALANCE XF204IRT is compatible with firmware X200IRT V4.1 or later.
 SCALANCE X201-3P IRT PRO is compatible with firmware X200IRT V4.5 or later.
 SCALANCE XF204, XF204-2, XF206-1, XF208 are compatible with firmware X200 V4.1
or later.
 SCALANCE X204-2TS is compatible with firmware X200 V4.3 or later.