Rockwell Automation Publication 1766-UM001O-EN-P - September 2021
13
Chapter
1
Hardware Overview
Hardware Features
The MicroLogix 1400 programmable controller contains a power supply, input
and output circuits, a processor, an isolated combination RS-232/RS-485
communication port, an Ethernet port, and a non-isolated RS-232
communication port. Each controller supports 32 discrete I/O points (20
digital inputs, 12 discrete outputs) and 6 analog I/O points (4 analog inputs and
2 analog outputs: 1766-L32BWAA, 1766-L32AWAA, and 1766-L32BXBA only).
The hardware features of the controller are shown below.
Topic
Page
1
ESC
OK
2
5
6
7
8
9
10
11
13
12
4
3
1
Left side view
Top view
Controller Description
Description
Description
1
Comm port 2 – 9-pin D-Shell RS-232C connector
8
Battery connector
2
Memory module
(1)
9
Output terminal block
3
User 24V (for 1766-BWA and 1766-BWAA only)
10
LCD Display
4
Input terminal block
11
Indicator LED panel
5
LCD Display Keypad (ESC, OK, Up, Down, Left, Right)
12
Comm port 1 – RJ45 connector
6
Battery compartment
13
Comm port 0 – 8-pin mini DIN RS-232C/RS-485 connector
7
1762 expansion bus connector
(1) See MicroLogix 1400 Memory Module Installation Instructions, publication
for instructions on installing the memory module.
Summary of Contents for 1766-L32AWA
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