1769-L23E-QB1B | Allen-Bradley CompactLogix Packaged EtherNet Controller, 512KB
1769-L23E-QB1B | Allen-Bradley CompactLogix Packaged EtherNet Controller, 512KB
1769-L23E-QB1B | Allen-Bradley CompactLogix Packaged EtherNet Controller, 512KB
    1769-L23E-QB1B | Allen-Bradley CompactLogix Packaged EtherNet Controller, 512KB
1769-L23E-QB1B | Allen-Bradley CompactLogix Packaged EtherNet Controller, 512KB

1769-L23E-QB1B | Allen-Bradley CompactLogix Packaged EtherNet Controller, 512KB

Part #: 1769-L23E-QB1B Manufactured by: Allen-Bradley
$1,749.00
$1,749.00
3 in Stock
Condition: New – Open box
Shipping calculated at checkout.
Product Overview
This Allen Bradley CompactLogix Processor has an RS-232 Serial Port, Ethernet/IP Port,and has input power of 24 VDC. This...  Read more
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Product Description P/N: 1769-L23E-QB1B

Description / Specifications

Description

The Allen-Bradley 1769-L23E-QB1B is a CompactLogix 5370 L2 packaged controller designed for machine-level automation with embedded I/O and integrated communication capabilities. It provides 512 KB of user memory, built-in Ethernet and serial ports, and 16 digital inputs paired with 16 digital outputs for immediate application use.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category PLC Controllers
Part Number 1769-L23E-QB1B
Subcategory CompactLogix Controllers
Series CompactLogix 5370 L2
Embedded Inputs 16 × 24 VDC
Embedded Outputs 16 × 24 VDC transistor
User Memory 512 KB
Communication Ports 1 × Ethernet/IP, 1 × RS232
Supported Protocols Ethernet/IP, DF1, DH485, ASCII
Max I/O Expansion 3 × 1769 I/O modules
Number of Tasks 32
Programs per Task Up to 100
Current Draw (5V DC) 1000 mA
Current Draw (24V DC) 700 mA
Power Supply Integrated 24 VDC
Mounting Type DIN rail
Programming Languages Ladder, Structured Text, Function Block, SFC
Replacement Battery 1769-BA
End Cap 1769-ECR
Wire Size 22–14 AWG (solid), 22–16 AWG (stranded)
Shipping Dimensions 11 × 8 × 6 in
Manufacturer Rockwell Automation

  

 

Information About 1769-L23E-QB1B

The 1769-L23E-QB1B belongs to the CompactLogix 5370 L2 family, combining CPU, power supply, and I/O functionality into a single compact unit. It includes 16 embedded 24V DC inputs and 16 transistor outputs, with expansion capacity through 1769 Compact I/O modules to support more complex systems. Equipped with one Ethernet/IP port and one RS-232 serial port, the controller enables communication with HMIs, SCADA systems, and other controllers using protocols such as DF1, DH485, ASCII, and Ethernet/IP. With 32 tasks and up to 100 programs per task, this controller provides powerful multitasking capability within a small footprint, making it ideal for distributed machine control applications.

Key Features:

  • Integrated Packaged Design: Combines processor, power supply, and I/O in a single compact controller.
  • Embedded I/O: Includes 16 digital inputs and 16 digital outputs for direct field device connection.
  • Strong Networking Capability: Features one Ethernet/IP port and one RS-232 port for industrial protocol communication.
  • Expandable Architecture: Supports up to three additional 1769 I/O modules for system customization.
  • High Memory Capacity: Offers 512 KB user memory for complex control applications.
  • Advanced Processing Functions: Supports up to 32 tasks with 100 programs per task for efficient control execution.
  • DIN-Rail Mountable: Compact housing allows streamlined installation in control cabinets.
  • Industrial Durability: Rated for 10–30V DC operation with robust electrical characteristics and low power consumption.

The 1769-L23E-QB1B delivers the reliability and precision required for compact machine control and scalable automation applications.

 

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Frequently Asked Questions about 1769-L23E-QB1B
Question: What are the key features of the 1769-L23E-QB1B CompactLogix controller?
Date Update:04/06/2025
Answer:

The 1769-L23E-QB1B is a CompactLogix 5370 L2 integrated controller that combines a controller, power supply, and communication ports in a single unit. It features:

  • Memory: 512 KB user memory
  • I/O: 16 embedded 24V DC discrete inputs and 16 discrete outputs
  • Communication Ports: One Ethernet/IP port and one RS-232 serial port (DF1 or ASCII)
  • Power Supply: Operates on 24V DC, 700 mA, 7W
  • Mounting Options: DIN rail or panel mountable
  • Energy Storage: No battery required due to internal energy storage solution

This integrated design simplifies installation and reduces wiring complexity, making it ideal for applications with limited space and moderate I/O requirements.

Question: What are the environmental and physical specifications of the 1769-L23E-QB1B?
Date Update:04/06/2025
Answer:

The 1769-L23E-QB1B controller has the following environmental and physical specifications:

  • Operating Temperature: 0°C to 60°C (32°F to 140°F)
  • Storage Temperature: -40°C to 85°C (-40°F to 185°F)
  • Relative Humidity: 5% to 95% (non-condensing)
  • Dimensions: 185.2 mm (7.29 in.) x 123.86 mm (4.88 in.) x 118 mm (4.65 in.)
  • Weight: Approximately 0.91 kg (2 lbs)

These specifications ensure reliable operation in various industrial environments.

Question: How does the 1769-L23E-QB1B handle firmware updates and system diagnostics?
Date Update:04/06/2025
Answer:

The 1769-L23E-QB1B controller supports firmware updates through:

  • AutoFlash: Utilizes RSLogix 5000 software to automatically update firmware.
  • ControlFLASH Utility: Allows manual firmware updates via USB or serial connections.

For system diagnostics, the controller provides:

  • Status Indicators: LED indicators for power supply, controller, module, network, and serial port status.
  • Diagnostic Tools: Integrated diagnostics accessible through the programming software.

These features facilitate efficient maintenance and troubleshooting.

Question: What expansion options are available for the 1769-L23E-QB1B controller?
Date Update:04/06/2025
Answer:

The 1769-L23E-QB1B controller supports expansion through:

  • Expansion I/O Modules: Supports up to 3 additional 1769 I/O modules.
  • Bus Current: Provides 1 A (1000 mA) of available 5V DC bus current for expansion modules.

To ensure compatibility, the total bus current draw of the planned expansion modules should not exceed the available bus current.

Question: What software and tools are compatible with the 1769-L23E-QB1B controller?
Date Update:04/06/2025
Answer:

The 1769-L23E-QB1B controller is compatible with:

  • RSLogix 5000 Software: For programming and configuration.
  • RSLinx Classic: For communication and network configuration.
  • RSNetWorx for EtherNet/IP: For network configuration and diagnostics.
  • ControlFLASH Utility: For firmware updates.

These tools provide comprehensive support for programming, configuration, and maintenance tasks.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description

The Allen-Bradley 1769-L23E-QB1B is a CompactLogix 5370 L2 packaged controller designed for machine-level automation with embedded I/O and integrated communication capabilities. It provides 512 KB of user memory, built-in Ethernet and serial ports, and 16 digital inputs paired with 16 digital outputs for immediate application use.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category PLC Controllers
Part Number 1769-L23E-QB1B
Subcategory CompactLogix Controllers
Series CompactLogix 5370 L2
Embedded Inputs 16 × 24 VDC
Embedded Outputs 16 × 24 VDC transistor
User Memory 512 KB
Communication Ports 1 × Ethernet/IP, 1 × RS232
Supported Protocols Ethernet/IP, DF1, DH485, ASCII
Max I/O Expansion 3 × 1769 I/O modules
Number of Tasks 32
Programs per Task Up to 100
Current Draw (5V DC) 1000 mA
Current Draw (24V DC) 700 mA
Power Supply Integrated 24 VDC
Mounting Type DIN rail
Programming Languages Ladder, Structured Text, Function Block, SFC
Replacement Battery 1769-BA
End Cap 1769-ECR
Wire Size 22–14 AWG (solid), 22–16 AWG (stranded)
Shipping Dimensions 11 × 8 × 6 in
Manufacturer Rockwell Automation

  

 

Information About 1769-L23E-QB1B

The 1769-L23E-QB1B belongs to the CompactLogix 5370 L2 family, combining CPU, power supply, and I/O functionality into a single compact unit. It includes 16 embedded 24V DC inputs and 16 transistor outputs, with expansion capacity through 1769 Compact I/O modules to support more complex systems. Equipped with one Ethernet/IP port and one RS-232 serial port, the controller enables communication with HMIs, SCADA systems, and other controllers using protocols such as DF1, DH485, ASCII, and Ethernet/IP. With 32 tasks and up to 100 programs per task, this controller provides powerful multitasking capability within a small footprint, making it ideal for distributed machine control applications.

Key Features:

  • Integrated Packaged Design: Combines processor, power supply, and I/O in a single compact controller.
  • Embedded I/O: Includes 16 digital inputs and 16 digital outputs for direct field device connection.
  • Strong Networking Capability: Features one Ethernet/IP port and one RS-232 port for industrial protocol communication.
  • Expandable Architecture: Supports up to three additional 1769 I/O modules for system customization.
  • High Memory Capacity: Offers 512 KB user memory for complex control applications.
  • Advanced Processing Functions: Supports up to 32 tasks with 100 programs per task for efficient control execution.
  • DIN-Rail Mountable: Compact housing allows streamlined installation in control cabinets.
  • Industrial Durability: Rated for 10–30V DC operation with robust electrical characteristics and low power consumption.

The 1769-L23E-QB1B delivers the reliability and precision required for compact machine control and scalable automation applications.

 

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