Procentec ProfiHub B5 Plus - Cable Types for PROFIBUS DP

ProfiHub B5+ / B5+RD User Manual
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Version 2.0 – July 2014 Page 12 / 56
ProfiHub-B5-Plus-Manual-EN.docx © PROCENTEC 2014 - Copyright - all rights reserved
1.7 Cable types for PROFIBUS DP
The cable type must comply with the PROFIBUS DP cable specifications for RS 485 (Fig. 7).
The ProfiHub B5+ can handle cables based on multiple protection sheaths with an overall cable
diameter between 6 to 12 mm (
Fig. 8).
Parameter Value
Wires 2 (twisted)
Impedance 135 .. 165 Ohm at 3 to 20 MHz
Capacity < 30 pF/m
Loop resistance < 110 Ohm/km
Wire diameter > 0.64 mm
Wire area > 0.32 mm
2
FRNC cable
Shipboard cable
Festoon cable
Flexible cable
Food cable
Robust cable
Trailing cable
Hybrid cable
Fig. 7 - PROFIBUS DP cable specifications
Fig. 8 - Cables with different protection sheaths.