Rockwell Automation 1770-KF3 DH-485 Communication Interface User Manual - Manual (Page 38)

Communicating with the KF3
Chapter 4
4Ć5
Example: Remote Mode Addressing on a Multidrop Network
This example uses the 1771-KGM as the half-duplex master in a multidrop
configuration. Each of the KF3s is set to half-duplex remote mode, and
has the half-duplex Master Address set to the address of the 1771-KGM
(010).
Figure 4.2
Remote Mode Addressing
KF3
101
(01)
SLC 500
100
(00)
SLC 500
102
(02)
SLC 500
103
(03)
SLC 500
104
(04)
DHĆ485
Modem
GROUP 02
PLCĆ2/
1771ĆKGM
010
Multidrop Network
Modem Modem
KF3
040
(00)
SLC 500
041
(01)
SLC 500
042
(02)
DHĆ485
GROUP 01
KF3
001
(01)
SLC 500
005
(05)
SLC 500
002
(02)
SLC 500
011
(09)
DHĆ485
GROUP 00
Modem
Key: XXX = Address on RSĆ232 Multidrop (octal)
(XX) = Address on local DHĆ485 network (decimal)