Technical data

Active components
4.1 Active components for RS485 networks
PROFIBUS Network Manual
80 System Manual, Edition 04/2009, C79000-G8976-C124-03
1 Status and fault LEDs
2 Switch for setting the PROFIBUS address
3 Switch for enabling the repeater function
4 Rotary switch for disconnecting the DP3 segment
5 Interface for PG with integrated terminating resistor
6 Rotary switch for temptation resistor for the DP1 segment
7 Terminal A1/B1 for the incoming bus cable of segment DP1
8 Terminal A1'/B1' for the outgoing bus cable of segment DP1
9 Version of the firmware and order number
10 Power supply connector
11 Terminal A2/B2 for the bus cable of segment DP2, with measuring circuit for line
diagnostics
12 Terminal A3/B3 for the bus cable of segment DP3, with measuring circuit for line
diagnostics
13 Securing screws for installation on S7-300 rail