Allen-Bradley 1769-L27ERM-QBFC1B CompactLogix Controller

Overview
The Allen-Bradley 1769-L27ERM-QBFC1B is a CompactLogix controller that belongs to the 5370 L2 CompactLogix Programmable Automation Controller (PAC) family. This compact controller integrates advanced control, communication, and I/O capabilities, offering a reliable and scalable solution for modern automation systems. It comes with built-in EtherNet/IP ports, analog and digital I/O, and high-speed counter functionality, making it suitable for demanding applications.

Technical Specifications

• Manufacturer: Rockwell Automation / Allen-Bradley

• Brand: Allen-Bradley

• Product Family: 5370 L2 Controller

• Product Line: CompactLogix

• Part Number/Catalog No.: 1769-L27ERM-QBFC1B

• Product Type: CompactLogix Controller

• Module Type: Processor Module

• Memory: 1 MB

• Communication Ports: (1) USB, (2) EtherNet/IP

• Supported Protocols: EtherNet/IP

• No. of Axes over Ethernet: 16 axes

• No. of Tasks: 32 tasks

• Programs per Task: 100

• Embedded Inputs: (16) 24 VDC sinking/sourcing

• Embedded Outputs: (16) 24 VDC sourcing

• Analog Inputs: 4 (Differential or Single-Ended)

• Analog Outputs: 2 (Single-Ended)

• High-Speed Counter Outputs: 4

• Programming Languages: Relay Ladder (Safety Task only), Structured Text, Function Block, SFC

• Mounting: DIN Rail

• Replacement Terminal Block: 1769-RTBN18

• Wire Type: Copper, 90 °C

• Wire Size (Solid): 22 to 14 AWG

• Wire Size (Stranded): 22 to 16 AWG

• Shipping Weight: 3 lbs

• Shipping Dimensions: 11 × 8 × 6 in.

Description
The Allen-Bradley 1769-L27ERM-QBFC1B is engineered to deliver high performance within a compact footprint. It includes a built-in 24 VDC power supply and supports up to four 1769 Compact I/O modules and one expansion bank, making it versatile for system expansion.

With dual embedded EtherNet/IP ports, the 1769-L27ERM-QBFC1B supports both linear and ring network topologies, ensuring reliable communication and network resiliency. It also offers a USB port for programming and device configuration.

The controller integrates digital I/O, analog I/O, and high-speed counter functions, reducing the need for separate expansion modules in smaller applications. Designed for scalability, the 1769-L27ERM-QBFC1B provides advanced features such as multitasking, structured programming, and time-based process control, meeting the growing demands of modern automation environments.