The Allen-Bradley 1762-L40BXB, also cataloged as the 1762-L40BXB Programmable Controller, operates as a dedicated hardware component for digital input processing and relay/FET output execution within MicroLogix 1200 control systems.

Model Identification

The 1762-L40BXB is a MicroLogix 1200 programmable controller with a 24 V DC power supply configuration. It integrates 24 digital inputs and 16 digital outputs, including standard DC inputs, fast DC inputs, relay outputs, and high-speed FET outputs for discrete automation control.

Hardware Specifications

Industrial Control Architecture

The MicroLogix 1200 platform provides a compact PLC architecture with integrated discrete I/O processing. The controller executes ladder logic operations and manages field devices through embedded digital input and output circuits.

The 1762-L40BXB supports industrial control applications requiring mixed relay and transistor output handling. Its I/O density configuration allows connection of standard field devices and high-speed switching loads within a compact controller structure.

EtherNet/IP and Control Integration Features

Allen-Bradley controller platforms are designed for integration with industrial automation networks using compatible communication interfaces and expansion modules. Firmware compatibility, communication configuration, and controller programming software versions must match the installed MicroLogix system requirements.

The MicroLogix architecture uses controller memory execution and I/O scanning cycles to process field signals. Digital I/O density scaling can be expanded through compatible MicroLogix 1200 expansion modules when required.

Ordering Information

• 1 x Allen-Bradley 1762-L40BXB MicroLogix 1200 Programmable Controller
• 1 x Integrated 24 V DC power supply controller unit
• 1 x Embedded digital input/output interface
• Expansion modules, programming cables, and communication accessories are ordered separately

Field Installation Guidelines

Power Wiring

• Verify the 24 V DC supply voltage before controller energization.
• Use separate routing paths for control wiring and high-current power conductors.
• Connect protective grounding according to the control panel electrical design.

I/O Wiring

• Confirm input device voltage levels match the 24 V DC digital input specifications.
• Separate fast input and fast output wiring from noise-generating circuits.
• Use proper terminal identification during field connection.

Programming and Commissioning

• Confirm controller firmware compatibility before downloading application programs.
• Verify I/O addressing after installation.
• Test relay and FET output operation before connecting final loads.

Frequently Asked Questions

• What type of controller is the 1762-L40BXB?

The 1762-L40BXB is an Allen-Bradley MicroLogix 1200 programmable controller designed for discrete automation control.

• What power supply does this controller require?

The controller uses a 24 V DC power supply with -15% and +10% tolerance and Class 2 SELV requirements.

• How many digital inputs are available?

The controller provides 24 digital inputs, including 20 standard 24 V DC inputs and 4 fast 24 V DC inputs.

• How many outputs are integrated?

The controller provides 16 outputs consisting of relay outputs and 24 V DC FET outputs.

• Does the controller support high-speed signals?

Yes. The unit includes fast 24 V DC inputs and one fast 24 V DC FET output for high-speed switching applications.

• Can relay and transistor outputs be used together?

Yes. The controller integrates relay and FET output circuits for different field device requirements.

• Does the controller support hot swapping?

No. Power must be removed before installation, replacement, or wiring changes.

• Are expansion modules available for this controller?

Yes. Compatible MicroLogix 1200 expansion modules can be added to increase system I/O capacity.