Rockwell Automation Publication 1789-UM002K-EN-P - January 2015 223
Communicate with Devices on a ControlNet Network Appendix B
If you configure the 1794-ACNR15 module as rack-optimized and the
I/O modules as rack-optimized, you use only one connection to the
1794-ACN15 module, reducing the above example by three connections. This
table calculates the connections for this rack-optimized configuration.
Example 2: SoftLogix
Controller to SoftLogix
Controller
In this example, one SoftLogix controller communicates with another SoftLogix
controller over the ControlNet network. The two controllers can be in separate
computers or in the same computer.
Connection Amount
SoftLogix controller to 1784-PCICS card 0
SoftLogix controller to remote 1794-ACNR15 module (communication
format is ’rack optimization’).
1
SoftLogix controller to four discrete I/O modules
(through module1794-ACNR15)
All four modules configured as rack-optimized connections. Only discrete
modules can be configured as rack-optimized connections.
0
Total Connections Used: 1
Example Illustration
Each SoftLogix controller resides in its own computer.
Each SoftLogix controller resides in the same computer.
Soft1
ControlNet Node 16
Chassis Monitor Slot 2
ControlNet
Soft2
ControlNet Node 27
Chassis Monitor Slot 5
Soft1
Chassis Monitor Slot 2
Soft2
Chassis Monitor Slot 5
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