System Redundancy - Siemens SINAMICS G220 Operating Instructions Manual

Functions
14.4 PROFINET communication
Description of function
Figure 14-6
The PROFINET "Shared Device" function allows two controls to access the same PROFINET IO
device, e.g. on a SIMATIC ET 200 I/O system or on a converter. Typical applications for
"Shared Device" are systems in which a standard CPU and a safety control (F-CPU) are used as
separate controls:
• The safety control (F-CPU) is responsible for the Safety Integrated Functions in the converter
and in the SIMATIC ET 200 I/O system.
• The standard control transfers all other signals.
Communications with both controls are independent of one another. If one of the control
fails, the converter signals the failure but still communicates with the other control.
Establishing communication after the power supply voltage has been switched on:
1. The converter receives the configuration data of the automation control.
2. The converter establishes cyclic communication with the automation control.
3. The converter receives the configuration data of the F-CPU.
4. The converter establishes cyclic communication with the F-CPU.
14.4.5

System redundancy

Overview
The converter supports PROFINET system redundancy S2. The system redundancy guarantees
that a system or machine continues to operate if a defect occurs or a controller is replaced.
Requirement
A high-availability (fault-tolerant) control system comprising two synchronized controllers.
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Shared device
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB
SINAMICS G220 converter