Allen-Bradley MicroLogix 1200 - Chapter 2: Installing Your Controller; Agency Certifications; Installation Considerations; Safety Considerations

1 Publication 1762-RM001C-EN-P
Chapter 1
I/O Configuration
This section discusses the various aspects of Input and Output features of
the MicroLogix 1200 and MicroLogix 1500 controllers. Each controller
comes with a certain amount of embedded I/O, which is physically located
on the controller. The controller also allows for adding expansion I/O.
This section discusses the following I/O functions:
•
Embedded I/O on page 1-1
•
MicroLogix 1200 Expansion I/O on page 1-3
•
MicroLogix 1200 Expansion I/O Memory Mapping on page 1-4
•
MicroLogix 1500 Compact™ Expansion I/O on page 1-7
•
MicroLogix 1500 Compact™ Expansion I/O Memory Mapping on
page 1-9
•
I/O Addressing on page 1-13
•
I/O Forcing on page 1-14
•
Input Filtering on page 1-14
•
Latching Inputs on page 1-15
Embedded I/O
The MicroLogix 1200 and 1500 provide discrete I/O that is built into the
controller as listed in the following table. These I/O points are referred to as
Embedded I/O.
Controller Family Inputs Outputs
Quantity Type Quantity Type
MicroLogix 1200
Controllers
1762-L24BWA 14 24V dc 10 relay
1762-L24AWA 14 120V ac 10 relay
1762-L24BXB 14 24V dc 10 5 relay
5 FET
1762-L40BWA 24 24V dc 16 relay
1762-L40AWA 24 120V ac 16 relay
1762-L40BXB 24 24V dc 16 8 relay
8 FET
MicroLogix 1500
Base Units
1764-24BWA 12 24V dc 12 relay
1764-24AWA 12 120V ac 12 relay
1764-28BXB 16 24V dc 12 6 relay
6 FET