Specifications - Siemens SIMATIC S7-400 Reference Manual

RS 485 repeater

10.5 Specifications

10.5 Specifications
Specifications of the RS 485 repeater
Specifications
Dimensions W x H x D (mm)
Power supply
● Nominal voltage
Ripple
Current consumption at nominal voltage
● Without load on PG/OP socket
● Load on PG/OP socket (5 V/90 mA)
● Load on PG/OP socket (24 V/100 mA)
Isolation
Connection of fiber-optic conductors
Redundancy mode
Transmission rate (automatically detected by the
repeater)
Degree of protection
Weight (including packaging)
Pin assignment of the sub-D connector (PG/OP socket)
5
4
3
2
1
Block diagram of the RS 485 repeater
● Bus segments 1 and 2 are electrically isolated.
● Bus segment 2 and the PG/OP socket are electrically isolated from each other.
● Signals are amplified
– Between bus segments 1 and 2
– Between PG/OP socket and bus segment 2
392
View Pin No. Signal name
1 -
2 M24V
3 RxD/TxD-P
4 RTS
9
5 M5V2
8
6 P5V2
7
7 P24V
8 RxD/TxD-N
6
9 -
45 x 128 x 67
24 VDC
20.4 to 28.8 VDC
200 mA
230 mA
200 mA
Yes, 500 VAC
Yes, via repeater adapters
No
9.6 Kbps, 19.2 Kbps, 45.45 Kbps, 93.75 Kbps,
187.5 Kbps, 500 Kbps, 1.5 Mbps, 3 Mbps,
6 Mbps, 12 Mbps
IP 20
350 g
Designation
-
Ground 24 V
Data line B
Request to send
Data reference potential (from station)
Supply plus (from station)
24 V
Data line A
-
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08