Siemens SIMATIC CPU 410 System Manual page 203

Permitted configuration changes for PROFINET IO
The process introduced here supports the following changes to your AS:
● Adding and removing IO systems.
● Adding and removing IO controllers.
● Adding and removing an IO device.
The IO device does not need CiR capability for this step.
The station address in the PROFINET IO subsystem of an IO device that is removed in a
CiR operation must not be added back again in the same CiR operation.
Station addresses must not be changed.
● Adding and removing I/O modules in the IO device.
The respective IO device does not need CiR capability for this step.
An I/O module that is removed with CiR must not be replaced with a different I/O module
in the same CiR step.
However, it is possible to remove I/O modules in a CiR operation and to add I/O modules
at a different location.
● Changing parameters of the I/O modules.
The respective device does not need CiR capability for this step.
● Changing parameters of the ports (PDEV submodules) or the interface, for example the
update time.
The device in question must have CiR capability for this step.
Addresses that are removed in a CiR operation may not be added again in the same CiR
operation.
Restriction
All changes that are not explicitly permitted above as part of plant changes in RUN, are not
permitted during operation and are not explained in more detail here. These include, for
example,
● Change of CPU-properties.
● Change of properties of centrally inserted I/O modules.
● Change of properties of existing PROFINET IO subsystems.
● Change of the following parameters of an IO device:
– Station address in the PROFINET IO subsystem
– Assignment to the IO controller
– Diagnostic address
CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC
Plant changes during redundant operation - H-CiR
12.5 Permitted changes over PROFINET IO
203