Siemens S7-400 - Terminating Resistor on Bus Connector; Terminating Resistor on RS 485 Repeater

Networking
5-9
S7-400 and M7-400 Programmable Controllers Hardware and Installation
A5E00069481-04
Terminating Resistor on the Bus Connector
on
off
on
off
Terminating
resistor
switched on
Terminating
resistor
switched off
Figure 5-3 Terminating resistor on bus connector
Terminating Resistor on the RS 485 Repeater
DC
24
V
L+ M PE M 5.2
A1 B1A1B1
A2B2A2B2
SIEMENS
RS 485-REPEATER
ON
ON
Terminating resistor
for bus segment 1
Terminating resistor
for bus segment 2
Figure 5-4 Terminating resistor on RS 485 repeater