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If possible, avoid laying long cables and make sure that they are installed in
areas being subject to low interference.
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Avoid parallel paths with little cable distance of cables being either susceptible
to interference or interference sources.
Profinet cables
The following minimum requirements with regard to LAN cables apply for Profinet
networks: Category 5 according to ISO/IEC 11801 Edition 2.0 Class D.
Connector is suitable for wiring dual pair Profinet cables.
The following tables list the available cable types Profinet types A through C with
regard to the respective application:
Table 17:
Cable types for dual pair Profinet cables
Application type C
Application type B
Application type A
Cable types
Dual pair data cable
Dual pair data cable
Dual pair data cable
Version
special applications (e.g. for contin-
ous movement, vibration or twist-
ing)
flexible installation (e.g. for contin-
ous movement, vibration or twist-
ing after installation)
fixed installation, immobile after
installation
Type of installation
Cable parameter
“Profinet type C”
“Profinet type B”
“Profinet type A”
Designation (minimum)
AWG 22/..
≥
0.318 mm²
AWG 22/7
≥
0.318 mm²
AWG 22/1
≥
0.610 mm²
Cross section
depending on application
5.5 – 8.0 mm
Outer cable diameter
depending on application
1.4
±
0.2 mm
Wire diameter
depending on application
Green RAL6018
Colour of shield
Pair 1: white, blue
Pair 2: yellow, orange
Colour of wire insulation
4
Number of wires
Dual pair or star quad
Cable design
depending on application
Alumium foil + copper braid
Shield
Communication requirements
ISO/IEC 11801 Edition 2.0
IEC 61140-1
IEC 61156-6
(minimum device group 5)
ISO/IEC 11801 Edition 2.0
IEC 61140-1
IEC 61156-5
(minimum device group 5)
Applicable standards
≦
20 ns/100 m
Delay
≥
80 dB at 30 – 100 MHz
“Channel class-D” according to EN 50174-2
Coupling attenuation
Minimum cable spacing
The minimum spacing (according to IEC 61918) required between laying Profinet
cables and other cables must be respected. They are shown in the table below.
Table 18:
Minimum spacing for Profinet cables
Spacing to Profinet cable
Steel cutoff bridge
Aluminium cutoff bridge
Without or with non-metal
cutoff bridge
Signal transmission cables
0 mm
0 mm
0 mm
E.g. other Profinet cables, Profibus cables, data cables
for PCs, programming devices, shielded analogue inputs
Power supply cables
50 mm
100 mm
200 mm
Unshielded power supply cables
0 mm
0 mm
0 mm
Shielded power cables
Further references
Ensure absence of equipotential earth bonding differences between the individual
devices at Profinet (perform an equipotential earth bonding).
28
SAEx 07.2 – SAEx 16.2/SAREx 07.2 – SAREx 16.2 Control unit - electromechanical
Electrical connection
ACExC 01.2 Intrusive Profinet