Cable type Shielded, twisted pair
Transmission rate 9.6 kBit/s to 12 kBit/s
5
1
9 6
3
4
5
6
7
8
9
2
1
VP 100 mA
DGND
CNTR-T
RxD/TxD-P
CNTR-N
RxD/TxD-N
X7P
Shield above the metallic
plug of the housing
Fig.7-22: PROFIBUS-DP interface
The bus line is specified as cable type A according to EN 50170, Part 8-2. The
bus line must comply with the following cable parameters:
Surge impedance at a frequency within a range from 3 to 20 MHz
135 to 156 ohms
Operating capacity <= 30 pF/m
Loop resistance <= 110 Ohm/km
Outer diameter > 0.64 mm
Core cross-section
> 0.34 mm
2
Fig.7-23: Parameters for PROFIBUS DP cable
The above mentioned cable parameters of a standard cable of cable type A
result in the following length extensions of a bus segment for the particular
transmission rates:
Transmission rate in
kbits/s
9.6 19.2 45.45 93.75 187.5 500 1500 3000 6000 12000
Max. segment length
in m
1200 1200 1200 1200 1000 400 200 100 100 100
Fig.7-24: Maximum segment length with regard to the transmission rate
Two LEDS are located above the PROFIBUS interface that display the interface
state:
LED designation
Color State Description
Stat. Green Lights permanently
Lights acyclically
Lights cyclically
Communication
Not configured
Configured
Bus Red Lights permanently
Flashes
No connection
Slave diagnostics
Fig.7-25: PROFIBUS state display
per LED
7.4.4 SERCOS III (optional)
X7E1 and X7E2 SERCOS III inter‐
face
The SERCOS III devices are connected to the optionally available X7E1 and
X7E2 connectors.
DOK-CONTRL-ICL45L65L85-PR01-EN-P
Rexroth IndraControl L45/L65/L85 Control
Bosch Rexroth AG 45/81
Connections and Interfaces
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