Component Descriptions; Micrologix 1400 Memory Module And Built-In Real-Time Clock - Rockwell Automation Allen-Bradley MicroLogix 1400 User Manual

Chapter 1 Hardware Overview
Controller Input and Output Description
Description
Catalog Number
Input
Power
1766-L32BWA
100/240V AC
1766-L32AWA
1766-L32BXB 24V DC
1766-L32BWAA
100/240V AC
1766-L32AWAA
1766-L32BXBA 24V DC
(1) Isolated RS-232/RS-485 combo port.
(2) Non-isolated RS-232. Standard D-sub connector

Component Descriptions

14
User Embedded
Power Discrete I/O
12 Fast 24V DC Inputs
24V DC 8 Normal 24V DC Inputs
12 Relay Outputs
20 120V AC Inputs
12 Relay Outputs
12 Fast 24V DC Inputs
None
8 Normal 24V DC Inputs
6 Relay Outputs
3 Fast DC Outputs
3 Normal DC Outputs
12 Fast 24V DC Inputs
24V DC 8 Normal 24V DC Inputs
12 Relay Outputs
20 120V AC Inputs
12 Relay Outputs
12 Fast 24V DC Inputs
None
8 Normal 24V DC Inputs
6 Relay Outputs
3 Fast DC Outputs
3 Normal DC Outputs

MicroLogix 1400 Memory Module and Built-in Real-Time Clock

The controller has a built-in real-time clock to provide a reference for
applications that need time-based control.
The controller is shipped with a memory module port cover in place. You can
order a memory module, 1766-MM1, as an accessory. The memory module
provides optional backup of your user program and data, and is a means to
transport your programs between controllers.
The program and data in your MicroLogix 1400 is non-volatile and is stored
when the power is lost to the controller. The memory module provides
additional backup that can be stored separately. The memory module does not
increase the available memory of the controller.
Figure 1 - 1766-MM1 Memory Module
Rockwell Automation Publication 1766-UM001O-EN-P - September 2021
Embedded Analog
Comm. Ports
I/O
None
1 RS-232/RS-485
1 Ethernet
(2)
1 RS-232
4 Voltage Inputs
2 Voltage Outputs
(1)