1769-L24ER-QBFC1B Allen-Bradley 5370 L2 CPU Controller Module
Manufacturer: Allen Bradley
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Part Number: 1769-L24ER-QBFC1B
Condition：New with Original Package
Product Type: CPU Processors
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Allen-Bradley 1769-L24ER-QBFC1B CompactLogix 5370 Controller
The Allen-Bradley 1769-L24ER-QBFC1B serves as the primary 1769-L24ER-QBFC1B Packaged Controller utilized to execute integrated logic control, analog conversion, and high-speed counting across CompactLogix 5370 L2 platforms. The device embeds an independent processing unit, internal power distribution links, and a multi-point field signal interface into a singular physical chassis, executing command execution loops and handling sensor feedback networks directly through fixed electronic circuitry.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-L24ER-QBFC1B |
| Brand | Allen-Bradley |
| Origin | Standard Factory Sourced |
| Weight | 1.81 lbs (0.82 kg) |
| Dimensions | Standard CompactLogix 5370 L2 enclosed dimensions |
| Operating Temp | 0 deg C to 60 deg C |
| Power Consumption | 1 A at 5 VDC, 0.8 A at 24 VDC (Operating range 10-28.8 VDC) |
| User Memory | 750 KB |
| Embedded Digital I/O | 16 inputs (24 VDC sink/source), 16 outputs (24 VDC sinking) |
| Embedded Analog Inputs | 4 channels (voltage, current, thermocouple, mV, RTD/resistance) |
| Embedded Analog Outputs | 2 channels (single-ended voltage/current) |
| High-Speed Counters | 4 inputs and 4 outputs |
| Communication Ports | 2 x EtherNet/IP (DLR capable), 1 x USB (programming), 1 x RS-232 |
| Storage Media | 1 GB Secure Digital (SD) card included (expandable to 2 GB) |
| Expansion Capability | Maximum 4 additional 1769 Compact I/O modules |
EtherNet/IP Deterministic Networks and I/O Density Scaling
The packaged unit features two integrated EtherNet/IP communication channels equipped with Device Level Ring (DLR) capabilities to maintain high backplane bus communication velocity and ring topologies. When expanding the hardware layout, local I/O density scaling is constrained to a maximum of 4 additional 1769 Compact I/O modules to preserve processing cycle determinism. The internal memory allocation supports up to 32 concurrent tasks with a maximum of 100 programs per task, requiring system technicians to verify firmware flash compatibility across all local expansion blocks to ensure consistent scan execution rates during open socket communications.
Frequently Asked Questions
Q: Can this modular packaged controller be mounted inside an unventilated housing area?
A: The controller is an open-type hardware component that requires an industrial enclosure to prevent particulate buildup. The installation area must maintain a stable ambient temperature within 0 deg C to 60 deg C and a relative humidity not exceeding 95 percent non-condensing to prevent thermal trip states.
Q: Does this specific model support multi-axis synchronized CIP motion control features?
A: No. The 1769-L24ER-QBFC1B provides basic pulse acquisition through 4 embedded high-speed counters but lacks integrated multi-axis motion control engine capabilities. Applications requiring synchronized coordinate drive motion must use a motion-capable model, such as the 1769-L27ERM controller.
Field Installation Guidelines
- Chassis Mounting Alignment: Mount the processor package onto an EN 50022 compliant 35 mm DIN rail or bolt it directly to the rear panel sub-plate using the pull-out mounting feet. Maintain sufficient spatial clearance on all sides to allow proper convective cooling through the enclosure vents.
- Network Wiring Layout: Connect the dual EtherNet/IP field links using shielded Category 5e industrial twisted-pair cabling. Route the communications infrastructure away from motor leads, power transformers, and variable frequency drives to suppress transient electromagnetic noise.
- System Power Grounding: Wire the 24 VDC power supply using dedicated copper leads to the integrated power terminal block. Ground the structural chassis terminal directly to a low-resistance single-point industrial earth ground bus to stabilize the embedded universal analog converters.