Siemens Simatic S7-400 - Manual (Page 426)

RS 485 Repeater
10-6
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Amplification of the Bus Signals
The amplification of the bus signals takes place between the port for bus segment
1 or the PG/OP interface and the port for bus segment 2.
10.4 Technical Specifications
Technical Specifications of the RS 485 Repeater
Technical Specification
Power supply pp y
•
Rated voltage 24 VDC g
•
Ripple 20.4 to 28.8 VDC
Current consumption at rated voltage p g
•
without node at PG/OP socket 200 mA
•
Node at PG/OP socket (5 V/90 mA) 230 mA
•
Node at PG/OP socket (24 V/100 mA) 200 mA
Isolation Yes, 500 VAC
Connection of fiber optic cables Yes, via repeater adapters
Redundancy operation No
Transmission rate (automatically detected by the repeater) 9.6 kbaud, 19.2 kbaud, 45.45 kbaud,
93.75 kbaud, 187.5 kbaud, 500 kbaud.
1,5 Mbaud. 3 Mbaud,
6 Mbaud, 12 Mbaud
Degree of protection IP 20
Dimensions W H D (in millimeters) 45 128 67 mm
Weight (incl. packaging) 350 g
Pin Assignment of the Sub-D Connector (PG/OP Socket)
View Pin No. Signal Name Designation
1 – –
2 M24V Ground 24 V
5
3 RxD/TxD-P Data line B
9
4
4 RTS Request To Send
3
8
5 M5V2 Data reference potential (from station)
3
2
7 6 P5V2 Supply plus (from station)
2
1
6 7 P24V 24 V
1
8 RxD/TxD-N Data line A
9 – –