Description
Product Name : 1769-L23 Allen Braley Central control module
Product details:
The Allen-Bradley 1769-L23 series belongs to the CompactLogix family of controllers. It is designed as an “all-in-one” packaged controller solution, making it ideal for small to mid-sized standalone applications that require high performance in a compact footprint.
1. Product Description
The 1769-L23 packaged controller combines a Logix processor, a power supply, and integrated I/O points into a single module. Unlike modular Logix systems where you buy components separately, the L23 provides a ready-to-use base, though it still allows for limited expansion using 1769 Compact I/O modules.
Common Models:
- 1769-L23E-QB1B: Features Ethernet/IP and integrated DC I/O.
- 1769-L23E-QBFC1B: Features Ethernet/IP, DC I/O, and integrated High-Speed Counter (HSC)/Analog I/O.
2. Technical Specifications
While specifics vary slightly between the “E” (Ethernet) and non-Ethernet models, here are the general parameters:
| Feature | Specification |
| User Memory | 512 KB |
| Communication Ports | 1 EtherNet/IP port (on “E” models) and 1 RS-232 serial port (DF1 or ASCII) |
| I/O Expansion | Supports up to 2 or 3 additional 1769 I/O modules (depending on model) |
| Integrated Digital I/O | 16 DC Inputs / 16 DC Outputs |
| Integrated Analog I/O | 4 Universal Inputs / 2 Outputs (QBFC models only) |
| Programming Language | Ladder Diagram, Structured Text, Function Block, Sequential Function Chart |
| Power Supply | Integrated 24V DC input |
3. Product Advantages
- Compact Design: Ideal for control panels with limited space where a full modular chassis is too large.
- Cost-Effective: By integrating the CPU, Power Supply, and I/O, it reduces the overall “price per point” for small systems.
- Common Programming Environment: Uses Studio 5000 / RSLogix 5000, meaning the same logic used in large ControlLogix systems can be used here.
- Seamless Integration: The Ethernet/IP port allows for easy connection to HMI (like PanelView Plus) and distributed drives (PowerFlex).
4. Key Considerations & Precautions
- Memory Limits: With only 512 KB of memory, it is not suitable for large-scale data logging or complex instruction sets.
- Expansion Limits: You are strictly limited to the number of expansion modules specified (usually 2 or 3). Check your “Bus Current” draw before adding modules.
- End Caps: A 1769-ECR or 1769-ECL Right End Cap is required to terminate the I/O bus, or the controller will fault.
- Battery Maintenance: These units typically use a lithium battery (1769-BA) to retain the program during power loss. Ensure a regular replacement schedule.
5. Product Applications
The 1769-L23 is frequently used in “Skid” applications or localized machine control, including:
- Packaging Machinery: Small wrappers, labelers, and conveyors.
- Water Treatment: Small pumping stations and chemical dosing systems.
- HVAC Control: Large-scale building air handling and climate management.
- Material Handling: Small sorting systems or dedicated lift controls.
- Assembly Cells: Standalone robotic cells or manual assembly workstations.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation!
Colour:new Warranty: 12 months
Lead Time:3-day working day Country of origin: Sweden
Price: Please contact us Product weight:0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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