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Figure 6.6 – Rockwell Automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM User Manual

Page 224

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Publication AG-UM008C-EN-P - February 2005

6-20 Configuring MicroLogix 1000 Controllers

Figure 6.6 Read MSG Instruction from a MicroLogix 1000 Controller to a PLC-5
Processor

In this example, MicroLogix 1000 station 10

10

is issuing a read

command to a PLC-5 station. The MicroLogix 1000 station (station
10

10

) reads the information in N10:10-N10:15 of the PLC-5 station and

puts that information into its N7:10-N7:15.

For example, if the MicroLogix 1000 controller in this example is
station 10

10

, then it reads the data from N10:10-N10:15 in the PLC-5

processor. File N10 must exist in the PLC-5 in order for the
MicroLogix 1000 controller to read data from it.

ladder rung

setup screen

IMPORTANT

The MicroLogix 1000 controller reads the information
from an integer file in the PLC-5 processor’s data
table that corresponds to the MicroLogix 1000
controller’s station address (this event is called PLC-2
emulation).