Rockwell Automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM - Manual (Page 176)

Publication AG-UM008C-EN-P - February 2005
4-38 Configuring SLC 5/03, 5/04, and 5/05 Processors
Processor-to-Processor
A processor-to-processor message can be the following types:
•
In a general point-to-multipoint configuration, the messaging
would be between slave stations; the master station
automatically routes the message.
•
In a radio modem point-to-multipoint or a point-to-point
configuration, the messaging would be between the two
connected peer devices.
The configuration of the network (point-to-multipoint vs.
point-to-point) and the configuration of the station (master, slave, or
peer) does not affect how you configure an MSG instruction. That is,
an MSG instruction being sent between two SLC slave stations is
configured the same as an MSG instruction between two SLC
processors connected point-to-point, which is configured the same as
an MSG instruction between an SLC master station and an SLC slave
station. See Example MSG Control Blocks starting on page 4-43.
Considerations When Configuring MSG Control Blocks
Keep the following considerations in mind when configuring
messages between an SLC 5/03, 5/04, or 5/05 processor and other
processors.
Master Station routes MSG to
Slave Station 2
Modem Modem
MSG from Slave Station 1 to
Slave Station 2
Slave
Station 1 Slave
Station 2
Master
Station
Modem
Station 1
Station 2
MSG
Modem Modem