Restrictions:
• IRT is not supported
• Shared device and system redundancy cannot be operated simultaneously
• For the conguration in the TIA Portal, the data length information for the variables is as
follows:
Maximum input data length according to the device master data for variable
MaxInputLength = 100 bytes.
Maximum output data length according to the device master data for variable
MaxOutputLength = 100 bytes.
Maximum total data length according to the device master data for variable MaxDataLength
= 200 bytes.
• In TIA V18, system redundancy can only be congured with GSD.
Description of function
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H-CPU A high-availability (fault-tolerant) control system comprising two synchronized controllers
ET 200 Distributed I/O
SINAM‐
ICS
Converter
Figure14-7 Example of PROFINET with system redundancy
The high-availability control system comprises an active and a reserve controller that
continuously synchronize with one another via ber-optic cable. If a controller fails, then
the other controller automatically takes over.
The converter supports system redundancy S2:
• The converter has only one PROFINET interface to connect with a single network.
• 2 PROFINET controllers can be assigned to the converter.
For the time that it takes to switch over from one controller to the other, the converter
controls the motor with the last setpoint that was received.
Functions
14.4PROFINET communication
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB 333
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