Rockwell Automation Publication 1769-UM022C-EN-P - June 2018 93
Add and Configure Standard I/O Modules Chapter 6
Additional Banks
If your application calls for twelve or more I/O modules, at minimum, you
must install the modules in extra banks. The conditions of each application
determine the number of extra banks.
Once the local bank design is validated, you must validate the design for any
additional banks. To validate extra bank designs, confirm that the design meets
these requirements:
• Compact I/O communication bus expansion cables are used properly.
• No more than eight modules are installed on either side of the power
supply.
• The power consumption of the modules on each side of the power
supply does not exceed the capacity of the power supply for that side.
• Modules are installed such that all power supply distance rating
requirements are met.
• End caps are installed properly, as shown in the following graphic.
Power Supply Distance Rating
Compact GuardLogix 5370 controller systems do not have embedded I/O
modules. You begin counting local expansion slots with the first Compact I/O
module installed next to the power supply when determining where to install a
Compact I/O module and meet its power supply distance rating.
In Compact GuardLogix 5370 controller systems, you can install Compact I/
O modules to the left or right side of the power supply. You can also use local
and extra banks in Compact GuardLogix 5370 controller systems, with each
allowing the inclusion of Compact I/O modules.
TIP Compact I/O expansion cables have the same dimensions as the end caps
regardless of whether they are installed at the right or left side of the
communication bus
Local Bank
1769-CRRx Cable
End Cap
Extra Bank
End
Caps
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