Rockwell Automation 1770-KF3 DH-485 Communication Interface User Manual User Manual
Page 13
Installing the KF3
Chapter 2
2Ć5
Connecting to a DHĆ485 Network (MultiĆPoint Configuration)
Figure 2.6 shows a network consisting of three SLC 500 programmable
controllers and one host computer station.
Figure 2.6
Connecting to Multiple SLC 500s via the DHĆ485 Network
DHĆ485 Cable
Belden #9842
RSĆ232C
Cable
Host Computer KF3
1747ĆC11 Cable
SLC 500
Controller
Link
Coupler
1747ĆAIC
1747ĆC11 Cable
SLC 500
Controller
Link
Coupler
1747ĆAIC
1747ĆC11 Cable
SLC 500
Controller
Link
Coupler
1747ĆAIC
This configuration requires the KF3 and three link couplers:
one SLC 500 family controller is connected to each of the link couplers
with a 1747-C11 cable
the KF3 is connected to the network at one of the link couplers
the DH-485 cable consists of three segments of cable daisy-chained to
the link couplers and the KF3
The connection between the first node (the KF3) and the link coupler to the
second node is shown in Figure 2.7.
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