Rockwell Automation 1762-Lxxxx MicroLogix 1200 Programmable Controllers - Manual (Page 140)

Publication 1762-UM001G-EN-P - March 2011
E-10 Connect to Networks via RS-232 Interface
Typical 3-Node Network
Networked Operator Interface Device and MicroLogix Controllers
MicroLogix Remote Packet Support
MicroLogix 1200 controllers can respond and initiate with communications
(or commands) that do not originate on the local DH-485 network. This is
useful in installations where communication is needed between DH-485 and
DH+ networks.
The example below shows how to send messages from a device on the DH+
network to a MicroLogix controller on the DH-485 network. This method
uses an SLC 5/04 processor as the bridge connection.
When using this method (as shown in the illustration below):
• PLC-5 devices can send read and write commands to MicroLogix 1200
controllers.
• MicroLogix 1200 controllers can respond to MSG instructions received.
A-B PanelView
TERM A B COM SHLD CHS GND
TX
TX PWR
TX
DC SOURCE CABLE
EXTERNAL
PanelView 550 MicroLogix 1200
1761-CBL-AM00
or 1761-CBL-HM02
1747-CP3 or 1761-CBL-AC00
RJ45 port
1761-CBL-AS09
or 1761-CBL-AS03
AIC+
TIP
This 3-node network is not expandable.
A-B PanelView TERM A B COM SHLD CHS GND
TX
TX PWR
TX
DC SOURCE CABLE
EXTERNAL
TERM A B COM SHLD CHS GND
TX
TX PWR
TX
DC SOURCE CABLE
EXTERNAL
TERM A B COM SHLD CHS GND
TX
TX PWR
TX
DC SOURCE CABLE
EXTERNAL
TERM A B COM SHLD CHS GND
TX
TX PWR
TX
DC SOURCE CABLE
EXTERNAL
TERM A B COM SHLD CHS GND
TX
TX PWR
TX
DC SOURCE CABLE
EXTERNAL
TERM A B COM SHLD CHS GND
TX
TX PWR
TX
DC SOURCE CABLE
EXTERNAL
AIC+ AIC+ AIC+
AIC+
DH-485 Network
SLC 5/04
PanelView 550
MicroLogix 1500 MicroLogix 1000 MicroLogix 1200
Personal
Computer
AIC+
AIC+