Allen-Bradley Compact GuardLogix 5370, User Manual

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Rockwell Automation Publication 1769-UM022C-EN-P - June 2018 91
Add and Configure Standard I/O Modules Chapter 6
Physical Placement of I/O Modules
Depending on the controller catalog number, Compact GuardLogix 5370
controllers support between 8 and 30 I/O modules. For more information on
catalog numbers, see
Local Expansion Modules on page 83 .
Consider these factors when determining the physical placement of I/O
modules:
• You can install I/O modules in local and extra banks.
• You can install I/O modules to the left and right of the power supply.
• When a system requires multiple banks, you can install the additional
banks horizontally or vertically, as shown in Figure 2 on page 28 .
• Each I/O module also has a power supply distance rating and maximum
current draw. Considered jointly, distance ratings and current draw
determine where I/O modules can be placed in a bank and what
configuration of modules can be installed in the bank.
For more information on power supply distance ratings, see Power
Supply Distance Rating on page 93 . For more information on system
power consumption, see Calculate System Power Consumption on
page 89 .
Table 12 - Module Power Consumption Calculation for an Additional Bank
Side of Power
Supply
Device Cat. No.
Number of
Modules
(3)
Module Current Requirements
Calculated Current =
(Number of Modules) x (Module
Current Requirements)
at 5V DC (in mA) at 24V DC (in mA) at 5V DC (in mA) at 24V DC (in mA)
Left - Optional in
an extra bank I/O Modules
IMPORTANT : Insert a separate row in this
calculation for each I/O module.
Up to 8 Module-specific Module-specific
Total Current Required
(2)
:
Right - Optional in
one bank I/O Modules
IMPORTANT : Insert a separate row for each
I/O module.
Up to 8 Module-specific Module-specific
Total Current Required
(2)
:
Total Current Required for Bank if Modules Are Installed on Both Sides of the Power Supply
(1)
:
(1) This number must not exceed the power supply current capacity for the bank.
(2) This number must not exceed the power supply current capacity for this side of the bank.
(3) You can install up to eight modules in additional banks if the power supply distance ratings for the modules validate the system design.