Communication System Manual
3WN1, 3WS1 Circuit-Breakers
Version 1.0 (02/98)
Copyright Siemens AG 1998. All rights reserved.
105
4.5.4.2 Interface data
The following table contains a list of technical data for the interfaces on the device. The data have been
obtained from the relevant standards.
Table 16: Technical data of the interface on the interface module
Interface name
PROFIBUS-DP
3WN1, 3WS1
No.
Physical interface
RS485
TTY
1
Standard
EIA standard
DIN 66258
2
Transmission type
Symmetrical
Asynchronous
Serial
Half-duplex
ð
Difference signal
Asymmetrical
Asynchronous
Serial
Full-duplex
ð
Current loop
3
Transmission mode
Master/slave
Active/passive
4
Number of slaves:
- Transmitters
- Receivers
32
32
1
1
5
Cable length:
- Maximum
- Dependent on baud rate
1200 m
93.75 Kbaud
à
1200 m
187.5 Kbaud
à
1000 m
500 Kbaud
à
400 m
1.5 Mbaud
à
200 m
>1.5 Mbaud
à
100 m
1000 m
No
6
Bus topology
Line
Point-to-point
7
Data rate:
- Maximum
- Standard values
12 Mbit/s
9.6 Kbit/s
19.2 Kbit/s
93.75 Kbit/s
187.5 Kbit/s
500 Kbit/s
1.5 Mbit/s
3 Mbit/s
6 Mbit/s
12 Mbit/s
9.6 Kbit/s
110 bit/s
1.2 Kbit/s
2.4 Kbit/s
9.6 Kbit/s
8
Transmitter load
- Max. voltage
- Signal without load
- Signal with load
54
Ω
- 7 V ... 12 V
±
5 V
±
1.5 V
24 V
12 V/0 mA
approx. 3 V/22 mA
9
Receiver:
- Input resistance
- Max. input signal
- Sensitivity
12 k
Ω
- 7 V ... 12 V
±
0.2 V
22 mA
10
SPACE mode:
- Voltage level
- Logic level
-0.2 ... +0.2 V
0
0 mA
0
11
MARK mode:
- Voltage level
- Logic level
+1.5 ... +5 V
1
20 mA
1