Allen-Bradley 1769-L24ER-QBFC1BK CompactLogix 5370 L2 Controller | Replacement, Equivalent & Selection Guide
The Allen-Bradley 1769-L24ER-QBFC1BK is a CompactLogix 5370 L2 Series programmable logic controller (PLC) manufactured by Rockwell Automation. Designed for mid-range discrete and process control applications, it combines onboard I/O, EtherNet/IP connectivity, and a compact form factor — making it a preferred choice for machine-level automation in industrial environments worldwide.
At Konmask.com, we specialize in sourcing, cross-referencing, and supplying Allen-Bradley CompactLogix controllers with full traceability and quality assurance for B2B industrial buyers.
Technical Specifications
- Catalog Number: 1769-L24ER-QBFC1BK
- Series: CompactLogix 5370 L2
- Manufacturer: Allen-Bradley / Rockwell Automation
- Processor Type: CompactLogix L24ER
- Memory: 750 KB user memory
- Onboard Digital Inputs: 16 × 24V DC sink/source
- Onboard Digital Outputs: 16 × 24V DC source (0.5 A each)
- Onboard Analog I/O: 4 × analog inputs, 2 × analog outputs
- Communication Ports: 2 × EtherNet/IP, 1 × USB (programming)
- Motion Axes: Up to 4 axes (Kinematics capable)
- Expansion I/O: Up to 4 × 1769 Compact I/O modules
- Power Supply: 24V DC (external)
- Operating Temperature: 0 °C to 55 °C
- Enclosure Rating: IP20 (panel mount)
- Weight: Approx. 750 g
- Firmware: Studio 5000 Logix Designer compatible
- Country of Origin: USA
Compatible Replacement & Equivalent Models
When the 1769-L24ER-QBFC1BK is unavailable or over budget, the following models are commonly evaluated as replacements or functional equivalents. Always verify firmware compatibility and I/O mapping before substitution.
- 1769-L24ER-BB1B — Same L24ER processor, no onboard analog I/O; suitable when analog is handled by expansion modules
- 1769-L27ERM-QBFC1B — Upgraded L27ERM with 1 MB memory and up to 8 motion axes; direct upgrade path
- 1769-L30ER — L30ER with 1 MB memory, no onboard I/O; requires separate 1769 I/O modules
- 1769-L33ER — Higher-end L33ER with 2 MB memory; suitable for larger programs
- 1769-L36ERM — L36ERM with motion control up to 16 axes; for complex servo applications
- Siemens S7-1200 CPU 1214C — Third-party equivalent for cost-sensitive projects; requires full reprogramming in TIA Portal
- Mitsubishi FX5U-32MT/ES — Alternative compact PLC; different architecture, not drop-in compatible
Note: Third-party alternatives are not plug-and-play replacements. Konmask recommends genuine Allen-Bradley parts for warranty-compliant and safety-critical installations.
Why Choose the Original Model
- ✅ Native Studio 5000 integration — No re-engineering required; import existing .ACD project files directly
- ✅ Onboard EtherNet/IP dual-port switch — Simplifies linear/ring topology wiring without additional hardware
- ✅ Integrated analog I/O — Reduces BOM cost and panel space vs. adding separate analog modules
- ✅ Rockwell Automation TechConnect support — Access to firmware updates, knowledgebase, and OEM-level technical support
- ✅ Proven reliability — Widely deployed in automotive, food & beverage, and packaging industries globally
- ✅ Motion control ready — Supports CIP Motion for servo drive integration without a separate motion controller
Typical Applications
- Machine-level discrete control (conveyor, assembly, packaging lines)
- Process control with analog sensor integration (pressure, temperature, flow)
- Servo and stepper motion control (up to 4 axes)
- OEM machine building requiring compact panel footprint
- Food & beverage, pharmaceutical, and automotive manufacturing
- SCADA/HMI integration via EtherNet/IP
System Compatibility
- Programming Software: Studio 5000 Logix Designer v21 and above
- HMI: Allen-Bradley PanelView Plus, FactoryTalk View SE/ME
- Drives: PowerFlex 525, 527, 755 (CIP Motion)
- I/O Expansion: 1769 Compact I/O modules (up to 4 local)
- Network: EtherNet/IP, DeviceNet (via scanner module), ControlNet (via bridge)
- Safety: Compatible with GuardLogix safety systems via EtherNet/IP
Selection Guide
Use the table below to select the right CompactLogix L2 variant for your application:
| Model | Memory | Onboard I/O | Analog I/O | Motion Axes | Best For |
|---|---|---|---|---|---|
| 1769-L24ER-QBFC1BK | 750 KB | 16 DI / 16 DO | 4 AI / 2 AO | 4 | Mixed I/O, compact machines |
| 1769-L24ER-BB1B | 750 KB | 16 DI / 16 DO | None | 4 | Digital-only applications |
| 1769-L27ERM-QBFC1B | 1 MB | 16 DI / 16 DO | 4 AI / 2 AO | 8 | More memory + motion axes |
| 1769-L30ER | 1 MB | None | None | 16 | Larger programs, modular I/O |
Quality Assurance & Sourcing
- 🔍 Authenticity verification — All units inspected for genuine Rockwell Automation markings, date codes, and firmware
- 📦 Original packaging — Shipped in factory-sealed or professionally repackaged condition with full documentation
- 🏭 Traceable supply chain — Sourced from authorized distributors and verified surplus channels
- 🛡️ Warranty — 12-month replacement warranty on all units supplied by Konmask.com
- 📋 Test reports available — Functional test records provided on request for critical installations
How to Order
- Confirm the exact catalog number: 1769-L24ER-QBFC1BK
- Specify quantity and required delivery timeline
- Contact us via email or phone for a formal quotation
- Receive proforma invoice → confirm payment → shipment with tracking
- Post-delivery technical support available via email
📧 Email: [email protected]
📞 Phone/WhatsApp: +0086 19859288691
🌐 Website: https://Konmask.com
Replacement & Compatibility FAQ
Q: Can I replace 1769-L24ER-QBFC1BK with 1769-L27ERM-QBFC1B directly?
A: Yes, the L27ERM is a direct upgrade. The .ACD project file is compatible; simply update the controller properties in Studio 5000 and verify I/O mapping.
Q: Is the 1769-L24ER-QBFC1BK still in production?
A: This model has been superseded by newer CompactLogix 5380 series. However, it remains widely available as new surplus and is fully supported by Rockwell Automation through TechConnect.
Q: Can a Siemens S7-1200 replace this unit?
A: Functionally similar in I/O count, but not compatible at the software or network level. Full system re-engineering is required. Not recommended for existing Allen-Bradley installations.
Q: What is the lead time for 1769-L24ER-QBFC1BK from Konmask?
A: Typically 3–7 business days for in-stock units. Contact us for current availability.
Q: Do you provide a certificate of conformance (CoC)?
A: Yes, CoC and functional test reports are available upon request for all units.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
