Rockwell Automation 1747-KE,D17476.12 DH-485/RS-232C Interface Module - Manual (Page 20)

Publication 1747-UM005B-EN-P - March 2006
1-8 Overview
Half-duplex (Local Mode)
Half-duplex (Local Mode) Master
This configuration allows the host controller to interface on a remote
DH-485 network of up to 31 SLC nodes using the half-duplex
protocol.
Interface Module
(1747-KE)
Link Coupler
(1747-AIC)
Modem
Modem
PLC-5
processor
Link Coupler
(1747-AIC)
Link Coupler
(1747-AIC)