Siemens Simatic S7-1500R - Connecting Redundancy Connections (Fiber-Optic Cables) to S7-1500 H

•
The branching radii of the cable ducts must correspond to the specified bending radius for
the fiber-optic cable.
•
Lay the redundancy connections in such a way that the fiber-optic cables are securely
protected from damage.
WARNING
Undefined system state of the S7‑1500H redundant system with simultaneous
interruption of the two redundancy connections ≤ 1500 ms apart (R-system) or ≤ 55 ms
apart (H-system).
Lay the redundancy connections in such a way that the fiber-optic cables are securely
protected from damage. Also make sure when laying the cables that the two redundancy
connections are always separate from each other. This makes simultaneous damage of the
redundancy connections ≤1500ms apart (R-system) or ≤55ms apart (H-system) unlikely.
Reference
Observe the installation notes for fiber-optic cables in the system manual Industrial Ether
net/PROFINET Passive network components
(https://support.industry.siemens.com/cs/ww/en/view/84922825).
7.9.1.4 Connecting redundancy connections (fiber-optic cables) to S7-1500H
Introduction
Make the redundancy connections (fiber-optic cables) between the two H-CPUs using the
sockets on the synchronization modules. You need two synchronization modules per CPU.
Connect the synchronization modules in pairs to the fiber-optic cables.
Requirements
•
The redundancy connections (fiber-optic cables) must not include any additional media
converters, IO devices or switches. Distribution boxes are allowed.
•
The maximum length of the redundancy connections is 10m / 10km / 40km.
187
Wiring
7.9 Connecting interfaces for communication with S7-1500H
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD