Allen-Bradley micrologix 1500

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Publication 1764-UM001B-EN-P - April 2002

Hardware Overview 1-11

Addressing Expansion I/O

The expansion I/O is addressed as slots 1 through 16 (the controller’s

embedded I/O is addressed as slot 0). Power supplies and cables are

not counted as slots. Modules are counted from left to right on each

bank as shown in the illustrations below. For more information on

addressing, refer to the MicroLogix 1200 and MicroLogix 1500

Programmable Controllers Instruction Set Reference Manual,

publication 1762-RM001.

Vertical Orientation

Horizontal Orientation

Expansion I/O Power Failure

Expansion I/O errors represent failures of the I/O bus or the modules

themselves. The error codes are listed in the MicroLogix 1200 and

MicroLogix 1500 Programmable Controllers Instruction Set Reference

Manual, publication 1762-RM001.

Embedded

I/O = Slot 0

Slot 1

Expansion

I/O Bank 1

Expansion

I/O Bank 2

Slot 2

Slot 3

Slot 4

Slot 5