Siemens SIMATIC S7-1500 System Manual page 279

Wiring
8.9 Connecting interfaces for communication with S7-1500H
Quality assurance on site
Check the following points before laying the fiber-optic cables:
• Has the correct fiber-optic cable been delivered?
• Is there any visible transport damage to the product?
• Have you organized suitable intermediate on-site storage for the fiber-optic cables?
• Does the category of cable match that of the connecting components?
Installing fiber-optic cables
Note the following points when laying fiber-optic cables:
• Fiber-optic cables can be installed in open locations provided you can safely exclude any
damage in those areas (vertical risers, connecting shafts, telecommunications
switchboard rooms, etc.).
• Attach fiber-optic cables to mounting rails, for example cable trays or wire mesh ducts,
using cable ties. Take care not to crush the cables when fastening them. Make sure there
is not too much pressure on the fiber-optic cables.
• Before laying the fiber-optic cables: Deburr the edges of the holes. Round the holes. This
prevents damage to the sheathing when you pull in and fasten the cable.
• The bending radius must not be smaller than the value specified by the manufacturer.
• 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.
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
Ethernet/PROFINET Passive network components
(https://support.industry.siemens.com/cs/ww/en/view/84922825).
278
WARNING
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF