Description
Allen-Bradley 1769-L27ERM-QBFC1B – CompactLogix 5370 L2 Controller
2. Product Overview
The 1769-L27ERM-QBFC1B is a high-performance, all-in-one packaged controller from the Allen-Bradley CompactLogix™ 5370 L2 family. This module integrates a powerful processor, embedded I/O, and motion control capabilities into a single, compact form factor. It is specifically designed to solve the challenges of small to medium-sized applications that require integrated motion over EtherNet/IP™ without the overhead of a large-scale chassis. By combining high-speed discrete and analog I/O with support for up to 4 axes of CIP Motion, the 1769-L27ERM-QBFC1B provides a cost-effective solution for machine builders who need the performance of a ControlLogix system in a significantly smaller footprint.
3. Technical Specifications
- Brand: Allen-Bradley (Rockwell Automation)
- Model: 1769-L27ERM-QBFC1B
- Warranty: One Year
- Condition: 100% New & Original
- User Memory: 1 MB
- Embedded I/O: 16 Digital Inputs, 16 Digital Outputs, 4 Analog Inputs, 2 Analog Outputs, 4 High-Speed Counters
- Motion Support: Up to 4 Axes of Integrated Motion over EtherNet/IP
- Communication Ports: 2 Ethernet Ports (support Linear and Device Level Ring – DLR topologies), 1 USB port for configuration
- Max Expansion Modules: Supports up to 4 1769 Compact I/O modules
- Power Supply: Embedded 24 VDC input power supply
- Programming Software: Studio 5000 Logix Designer®
4. Key Features & Benefits
- Integrated Motion over EtherNet/IP: The 1769-L27ERM-QBFC1B simplifies complex machine architectures by eliminating the need for dedicated motion networks, allowing for synchronized control of up to 4 axes directly over standard Ethernet.
- Device Level Ring (DLR) Support: Features dual Ethernet ports that allow the controller to connect to a DLR topology, providing network resiliency so that a single cable break does not result in a system shutdown.
- Comprehensive Embedded I/O: By including digital, analog, and high-speed counting capabilities on-board, this controller reduces the need for additional expansion modules, saving both cost and DIN-rail space.
5. Application Scenarios
- Packaging Machinery: Ideal for vertical form fill and seal (VFFS) machines where high-speed digital I/O manages sensors and actuators, while integrated motion controls film tension and sealing jaws.
- Material Handling: Deployed in small-scale sorting or conveyor systems that require localized intelligence and the ability to communicate with higher-level ERP systems via Ethernet.
- Assembly Automation: Used in robotic work cells to coordinate peripheral tooling through embedded I/O while synchronizing servo-driven pick-and-place units.
6. Frequently Asked Questions (FAQ)
- Q: What is the primary function of the 1769-L27ERM-QBFC1B?
- A: The 1769-L27ERM-QBFC1B is a compact PLC that provides centralized processing, embedded digital/analog I/O, and multi-axis motion control for industrial automation.
- Q: Does this controller require a separate power supply?
- A: No, the 1769-L27ERM-QBFC1B features a built-in 24 VDC power supply, though you must ensure the external DC source meets the module’s power consumption requirements.
- Q: What is the maximum number of Ethernet nodes it can support?
- A: This specific L2 controller supports a maximum of 40 EtherNet/IP nodes, making it suitable for distributed I/O and drive control in medium-sized systems.
Allen-Bradley 1734-IB8 Rockwell 2198-D012-ERS3 Allen-Bradley 80190-580-01-R









