7-14 Connections and Interfaces IndraControl L40
DOK-CONTRL-IC*L40*****-PR03-EN-P
PROFIBUS DP (Optional)
Optionally, the IndraControl L40 provides a PROFIBUS interface
according to DIN EN 50170, Part 2.
D-Sub female connector, 9-pin
Type: RS485
Cable type: Shielded, twisted pair
Transmission rate: 10 or 100 Mbits/s
X7P
Shield applied to the metal housing
of the plug-in connector
5
1
96
3
4
5
6
7
8
9
2
1
VP 100 mA
DGND
CNTR-T
RxD/TxD-P
CNTR-N
RxD/TxD-N
DP_Bus.FH9
The bus line is specified as cable type A according to EN 50 170, part 8-2
and must comply with the cable parameters named in Fig. 7-21. You will
find the corresponding cables and connectors on page 11-6.
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 ohms/km
Outside diameter > 0.64 mm
Core cross-section > 0.34 mm²
Fig. 7-21: Parameters for PROFIBUS DP line
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. 7-22: Maximum segment length in relation to the transmission rate
X7P
PROFIBUS DP Interface
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