SIMATIC Redundant CPUs

For Application which must fulfill higher requirements in regards to availability, redundant PLCs are available.

Redundancy

Both controllers are connected to a PROFINET IO-ring, in order to access the IO-Stations and to synchronize each other. In case the primary CPU fails the back-up CPU takes over the control.
No data will be lost and the process continues without interruption.
The ring architecture ensures in case of a cable fault that all network-participants are still accessible.


The Engineering corresponds to Engineering of a standard CPU. The synchronization of the programs and data are handled by the TIA-Portal and the redundant controllers, no additional user action required.

Redundant CPUs for small to medium applications with higher requirements in regards to availability

CPU 1513R-1 PN

• CPU with display
• Work memory 300 kB code and 1.8 MB data
• PROFINET IO-Controller
• Integrated PROFINET I/O interface with 2 ports for
ring structure
• Integrated system diagnostics
• 4-level security concept
• Width: 35 mm

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CPU 1515R-2 PN

• CPU with display
• Work memory  500 kB code and 3,5 MB data
• PROFINET IO-Controller
• integrated PROFINET IO interface with 2 ports for ring structure and 1 PROFINET interface with separate IP address
(in sum 3 ports)
• Integrated system diagnostics
• 4-level security concept
• Width: 70 mm

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Article No.