Siemens SIMATIC ET 200AL System Manual page 1925

Description
2.2 Structure of PROFIBUS networks
Flexible Fiber Optic trailing cable
The trailing cable was designed for the special application of forced movement, for example,
for constantly moved machine parts such as trailing chains. It is mechanically designed for
100,000 bending cycles by ±90° (with the specified minimum radius). Integrated dummy
elements ensure a round cross-section of the cable. The trailing cable can be used indoors
and outdoors.
Maximum distances between two optical link modules
The following distances may not be exceeded between two OLMs regardless of the optical
power budget:
● OLM/P11, OLM/P12: 400 m
● OLM/G11, OLM/G12, OLM/G12-EEC: 3 km
● OLM/G11-1300, OLM/G12-1300: 15 km
Additional information
All operating instructions
(http://support.automation.siemens.com/WW/view/en/10805951/133300) of the
SIMATIC NET bus components include information on distances that can be covered with
the SIMATIC NET glass fiber-optic cables. You can configure your optical network without
any calculations using simple limits.
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PROFIBUS with STEP 7 V13
Function Manual, 12/2014, A5E03775446-AC