Siemens SIMATIC S7-1500R/H Getting Started page 11

Introduction to the example
1.2 Structure and task of the example
S7-1500H versus S7-1500R
As an alternative to S7-1500H, you can use an S7-1500R redundant system for the solution
to the automation task. In this example, the S7-1500H redundant system is used as it offers
the following advantages for tunnel automation:
● much higher performance than S7-1500R with:
– separate redundancy connections over fiber-optic cable
– high computing power
– a higher number of PROFINET devices can be used
● distance between the two H CPUs up to 10 km
Advantages and benefits of the solution
● High availability of the system: If an H-CPU fails or is being maintained, the lighting and
fan control continues to function. The tunnel does not need to be blocked.
● Reliable monitoring and control of the tunnel facilities over large distances, up to 10 km
between the two H-CPUs
● Monitoring of the system and targeted information of the operating engineers in real time
● Signals are recorded and output directly in the ET 200SP distributed I/O systems in the
tunnel. There are no long cable runs.
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S7-1500R/H redundant system
Getting Started, 10/2018, A5E44910930-AA