Allen‑Bradley 1769-L27ERM-QBFC1B A CompactLogix 5370 Controller

The Allen‑Bradley 1769-L27ERM-QBFC1B is a CompactLogix 5370 integrated motion controller manufactured by Rockwell Automation. It combines a high-performance CPU, embedded digital I/O, analog input channels and EtherNet/IP communication ports into a single compact unit for small to medium automation systems.

This all-in-one controller supports integrated motion control and peer-to-peer messaging over EtherNet/IP. It features built-in I/O to reduce hardware layout space and wiring workload, and supports expansion via additional Compact I/O modules to satisfy flexible on-site control demands in discrete and process automation.

Main Specifications

• Brand: Allen‑Bradley (Rockwell Automation)
• Model: 1769-L27ERM-QBFC1B
• Series: CompactLogix 5370 Controller
• Memory: 1MB program memory, 0.5MB data memory
• Communication: Dual EtherNet/IP ports with DLR support
• Embedded I/O: Digital input, digital output and analog input channels
• Motion Support: Integrated motion over EtherNet/IP
• Backplane: Compatible with 1769 Compact I/O expansion modules
• Operating Temperature: 0°C ~ +60°C
• Power Supply: 24VDC nominal power input

Core Functions

• Execute ladder logic, structured text and other standard control programs
• Integrated motion control for servo drives over EtherNet/IP network
• Dual Ethernet ports supporting DLR network topology for redundancy
• Embedded digital and analog I/O for direct connection to field sensors
• Support expansion with 1769 series Compact I/O modules
• EtherNet/IP peer communication with other PLCs, HMIs and drives
• Built-in data logging and fault diagnostic functions
• Support secure controller access and user privilege management
• Real-time data exchange with FactoryTalk SCADA platforms
• Compact integrated design to save cabinet installation space

Application Scenarios

• Automated assembly and packaging production lines
• Material handling and conveyor system control
• Water treatment and wastewater automation systems
• Food and beverage processing machinery control
• HVAC and pumping station automatic control cabinets
• Plastic injection molding and metal processing equipment
• Small-scale process control and monitoring projects
• Warehouse automation and sorting equipment control
• Retrofit upgrade of legacy Rockwell automation systems
• Mobile machinery and skid-mounted integrated control systems