Specifications

Rockwell Automation Publication AG-SG001G-EN-P - April 2015 67
Choosing a Device for a Master Station Chapter 4
Figure 7 - Controllers Configured as a Submaster
Choosing a Data-routing
Submaster Station
If your application requires one or more data-routing submaster stations, the
master station and the submaster stations can either be ControlLogix or
CompactLogix processor-based.
For serial communication submasters, each ControlLogix submaster station has
two ControlLogix processors, one with its serial port configured for DF1 half-
duplex master station communication and the other with its serial port
configured for DF1 half-duplex remote station communication, or either one
configured for DF1 radio modem.
The CompactLogix L31 has two serial ports that can be set up for DF1 half-
duplex master and slave, or DF1 radio modem, with routing capability between
them. Alternatively, Ethernet can be used for communication to or from the
submaster.
Communication with Master Station
MicroLogix 1400
Remote Site A Remote Site B Remote Site C
MicroLogix
SLC
CompactLogix
Serial or Ethernet
Serial or Ethernet