Allen-Bradley 1769-L23E-QBFC1B CompactLogix Packaged Controller

Description

The 1769-L23E-QBFC1B is an Allen-Bradley CompactLogix Packaged Controller designed for small to mid-size automation applications requiring integrated control, I/O, and communication in a single compact unit. This controller provides 512 KB of user memory for program storage and execution, supporting complex control logic for a wide range of industrial processes.

Features

• 512 KB User Memory for program storage and execution.
• Integrated EtherNet/IP port (10/100 Mbps) and RS-232 serial port (DF1/ASCII).
• Comprehensive embedded I/O: 16 DC sink/source inputs, 16 DC source outputs, 4 analog inputs, 2 analog outputs, and 4 high-speed counters.
• Supports expansion with up to two additional 1769 Compact I/O modules.
• Built-in 24V DC power supply for simplified installation.
• Supports optional 1784-CF64 CompactFlash card for nonvolatile memory and data logging.

Applications

• Packaging Machinery: Provides precise timing and high-speed I/O for sorting, filling, and labeling.
• Material Handling: Controls conveyor routing and small-scale palletizing routines.
• Process Control: Uses embedded analog channels to regulate pressure, flow, and temperature in standalone loops.
• Building Automation: Connects to HVAC and lighting management panels for infrastructure control.

Technical Specifications

Installation Guidelines

• Mounting: The unit can be DIN-rail mounted (on zinc-plated, chromate-passivated steel rail) or panel-mounted using M4 or #8 screws.
• Clearance: Maintain a minimum of 50 mm (2 in.) of clearance on all sides to ensure adequate airflow and proper heat dissipation.
• Grounding: Ensure the DIN rail is securely grounded to the mounting surface to maintain signal integrity and EMI protection.
• Handling: Always power down the system before inserting or removing modules or connecting communication cables to prevent electrical damage.
• Wiring: Use shielded cables for analog signals and keep high-voltage lines separated from low-voltage I/O to minimize electromagnetic interference.

FAQ

What is the 1769-L23E-QBFC1B?

The 1769-L23E-QBFC1B is a CompactLogix packaged Programmable Automation Controller (PAC) that integrates control, power supply, and fixed I/O into a single, space-saving unit.

What communication ports are included?

It features one 10/100 Mbps RJ45 Ethernet port for EtherNet/IP and one RS-232 serial port for DF1/ASCII protocols.

How is the IP address configured?

The controller defaults to BOOTP/DHCP upon first power-up. You can use the Rockwell BOOTP/DHCP utility or configure a static IP directly in the controller properties using the programming software.