Connecting
3.7 Connecting PROFIBUS/MPI
SIMOTION D4x5-2
64 Commissioning and Hardware Installation Manual, 02/2012
3.7.2 PROFIBUS cables and connectors
Properties of PROFIBUS cables
The PROFIBUS cable is a two-core, twisted and shielded cable with defined properties:
Properties of the cables
Table 3- 4 Properties of PROFIBUS cables
Characteristics Values
Characteristic impedance Approximately 135 to 160 Ω (f = 3 to 20 MHz)
Loop resistance ≤ 115 Ω/km
Effective capacitance 30 nF/km
Damping 0.9 dB/100 m (f = 200 kHz)
Permissible conductor cross-section 0.3 mm
2
to 0.5 mm
2
Permissible cable diameter 8 mm + 0.5 mm
Connector features
The bus connector is used to connect the PROFIBUS cable to the PROFIBUS DP interfaces
(X126, X136), thus establishing a connection to additional nodes.
Only bus connectors with a 35° cable outlet should be used in order to ensure that the front
cover can be closed.
See also
SIMOTION D4x5-2
Manual, Section "Spare parts and accessories which can be ordered"
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