Publication 1762-RM001C-EN-P
I/O Configuration 1-7
MicroLogix 1500
Compact™
Expansion I/O
If the application requires more I/O than the controller provides, you can
attach I/O modules. These additional modules are called expansion I/O.
Expansion I/O Modules
Compact I/O (Bulletin 1769) is used to provide discrete and analog inputs
and outputs and, in the future, specialty modules. For the MicroLogix
1500, you can attach up to eight additional I/O modules. The number of
modules that can be attached is dependent on the amount of power
required by the I/O modules.
See your MicroLogix 1500 User Manual, publication 1764-UM001A-US-P,
for more information on valid configurations.
Addressing Expansion I/O
The figure below shows the addressing for the MicroLogix 1500 and its
I/O.
The expansion I/O is addressed as slots 1 through 8 (the controller’s
embedded I/O is addressed as slot 0). Power supplies and cables are not
counted as slots, but must be added to the RSLogix 500 project in the I/O
configuration. Modules are counted from left to right on each bank as
shown in the illustrations below.
Figure 1.1 Vertical Orientation
NOTE
Visit the MicroLogix web site (http://www.ab.com/
micrologix.) for the MicroLogix 1500 Expansion I/O
System Qualifier.
Embedded I/O = Slot 0
Slot 1
Expansion
I/O Bank 0
Expansion
I/O Bank 1
Slot 2
Slot 3
Slot 4
Slot 5
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