Allen-Bradley 1769-L23E-QB1B | CompactLogix Controller

Product Overview

The 1769-L23E-QB1B is an Allen-Bradley CompactLogix 5370 L2 packaged controller. It provides 16 discrete 24VDC inputs and 16 discrete outputs for versatile control tasks. The controller supports up to three 1769 I/O modules, allowing flexible expansion to match application requirements.

Technical Specifications

The 1769-L23E-QB1B has 512KB of embedded user memory, accommodating up to 32 tasks and 100 programs per task. It includes one Ethernet I/P port and one RS232 port, supporting Ethernet I/P, DF1, DH485, and ASCII protocols.

Its integrated power supply operates at 24VDC, providing backplane power for all connected modules. The controller draws 1000 mA at 5V DC and 700 mA at 24V DC, ensuring stable operation under full load.

Installation and Connectivity

The 1769-L23E-QB1B mounts easily on DIN rails. It is compatible with replacement terminal block 1769-RTBN18, battery 1769-BA, and end cap 1769-ECR. It supports copper wires from 22–14 AWG (solid) and 22–16 AWG (stranded), rated for 90°C.

Dimensions and Weight

The controller measures 11 x 8 x 6 inches and weighs 3 pounds, offering a compact design suitable for industrial panels and enclosures.