Siemens SIMATIC NET PROFIBUS manual Possible Configurations with the RS-485 Repeater, Off

Active Components for RS-485 Networks

5.2Possible Configurations with the RS-485 Repeater

Overview

The following section explains the configurations in which you can use the RS-485 repeater:

SSegment 1 and Segment 2 terminated on the RS-485 repeater (see Figure 5-3)

SSegment 1 terminated on the RS-485 repeater and segment 2 connected through on the RS-485 repeater (see Figure 5-4 )

and

SSegment 1 and Segment 2 connected through on the RS-485 repeater (see Figure 5-5 )

Terminating Resistor On/Off

Figure 5-2 shows the setting for the terminating resistor:

Terminating resistor	Terminating resistor
On:	Off:

Figure 5-2 Setting of the Terminating Resistor

5-6	PROFIBUS Networks SIMATIC NET
	6GK1970-5CA20-0AA1 Release 2 05/2000