Allen-Bradley 1769-L19ER-BB1B CompactLogix 5370 L1 Controller with 1MB Memory

Technical Specifications

Main Features and Advantages

Dual Ethernet with DLR Capability: The Allen-Bradley 1769-L19ER-BB1B features two Ethernet/IP ports with an integrated switch, supporting Device Level Ring (DLR) topology for enhanced network reliability . This DLR capability allows individual network segments to be replaced without compromising production, significantly reducing downtime in critical applications . The 1769-L19ER-BB1B also supports linear and star topologies, providing deployment flexibility for various network architectures.

Embedded I/O and Expansion Flexibility: With 16 discrete inputs and 16 discrete outputs built directly into the 1769-L19ER-BB1B, many small to mid-size applications can be implemented without additional I/O modules . For applications requiring additional I/O capacity, the 1769-L19ER-BB1B supports up to eight 1734 POINT I/O expansion modules, enabling scalable solutions that grow with application demands .

Battery-Free Operation: The Allen-Bradley 1769-L19ER-BB1B eliminates the need for lithium batteries with its built-in energy storage technology, providing reliable program and data retention during power interruptions without the maintenance burden of battery replacement . This feature reduces total cost of ownership and environmental impact while improving system reliability.

High-Performance Programming Capabilities: The 1769-L19ER-BB1B supports programming in multiple languages including Relay Ladder, Structured Text, Function Block, and Sequential Function Chart (SFC) . With support for up to 32 controller tasks and 100 programs per task, the 1769-L19ER-BB1B provides exceptional flexibility for complex control applications. The controller supports up to 256 controller connections and 128 TCP/IP connections, enabling comprehensive integration with HMI, SCADA, and other networked devices .

Integrated Motion Support: The Allen-Bradley 1769-L19ER-BB1B offers support for Integrated Motion over EtherNet/IP, enabling coordinated motion control for up to 2 axes with support for simple articulated robotics . This capability makes the 1769-L19ER-BB1B suitable for applications requiring precise motion control without the need for dedicated motion controllers.

Application Fields

The Allen-Bradley 1769-L19ER-BB1B is ideally suited for small to mid-size industrial applications that require a balance of control capability, I/O capacity, and network connectivity . In the manufacturing sector, the 1769-L19ER-BB1B provides reliable control for packaging machinery, material handling systems, assembly stations, and conveyor control applications. The embedded 24V DC I/O of the 1769-L19ER-BB1B enables direct connection to modern sensors and actuators commonly found in automated production environments, reducing system cost and complexity.

In the OEM and machine building industry, the Allen-Bradley 1769-L19ER-BB1B serves as a versatile control platform for specialized machinery including labeling machines, filling equipment, CNC machinery, and robotic work cells. The 1769-L19ER-BB1B supports integrated motion control, making it suitable for applications requiring coordinated axis control in pick-and-place systems and assembly automation . The compact form factor of the 1769-L19ER-BB1B is particularly valuable for machine builders where panel space is limited.

The Allen-Bradley 1769-L19ER-BB1B also finds application in building automation and infrastructure projects, including HVAC control, pumping stations, and water treatment facilities. The DLR capability of the 1769-L19ER-BB1B provides network resilience essential for critical infrastructure applications where communication reliability is paramount . With SIL 3 rating according to IEC 61508 and Performance Level e according to EN ISO 13849-1, the 1769-L19ER-BB1B is suitable for safety-related applications requiring functional safety compliance .