Redundancy Scenarios; Introduction - Siemens SIMATIC S7-1500 System Manual

Application planning

5.4 Redundancy scenarios

via Modbus/TCP. You connect the PROFINET lines to the external devices to the PROFINET
interfaces X2 of the H-CPUs.
Configuration S7-1500H without further devices at the PROFINET interface X1 of the H-CPUs
①
②
③
Figure 5-22 S7-1500H configuration with additional devices
5.4 Redundancy scenarios
5.4.1

Introduction

Introduction
This section describes possible redundancy scenarios on the basis of various different
configuration variants. The redundancy scenarios do not result in process restrictions. In the
examples shown, the failures are tolerated by the redundant system.
The following convention applies:
Figure 5-23 Yellow traffic light
102
CPU 1
CPU 2
Two fiber-optic cables (redundancy connections)
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD