Allen-Bradley 1769-L19ER-BB1B CompactLogix 5370 L1 Controller – 1MB Memory, 16 DI / 16 DO, Dual Port EtherNet/IP

Description

Technical Specifications

Main Features and Advantages

Integrated onboard I/O reduces system footprint:The Allen-Bradley 1769-L19ER-BB1B​ incorporates sixteen 24V DC sinking digital inputs and sixteen 24V DC sourcing transistor outputs directly into the controller body. For many standalone machines—conveyors, case packers, labelers, or small process skids—this eliminates the need to dedicate a slot to a discrete I/O module for basic start/stop pushbuttons, safety reset, stack lights, or solenoid drivers, freeing the 1769 expansion slots for analog, temperature, or specialty modules.Dual-port EtherNet/IP with embedded switch and DLR:Equipped with two RJ-45 Ethernet ports functioning as an unmanaged switch, the Allen-Bradley 1769-L19ER-BB1B​ supports linear topologies or Device Level Ring (DLR) for media redundancy without external infrastructure. This simplifies network cabling to HMIs, VFDs, remote I/O adapters, and peer controllers while providing deterministic EtherNet/IP messaging consistent with Rockwell’s Integrated Architecture.Scalable Logix control platform:Running the same tag-based Logix execution engine as larger ControlLogix and CompactLogix systems, the Allen-Bradley 1769-L19ER-BB1B​ allows reuse of Add-On Instructions (AOIs), user-defined data types, and structured text/ladder/function block programming styles. With 1 MB of memory, it handles complex sequencing, PID loops, recipe management, and moderate data handling tasks. Programs developed for the Allen-Bradley 1769-L19ER-BB1B​ can be migrated upward to L2x or L3x platforms as machine requirements grow.Optional CIP Motion capability:Although targeted at general-purpose discrete control, the Allen-Bradley 1769-L19ER-BB1B​ can control up to four servo or stepper axes via CIP Motion over EtherNet/IP when a motion activation option is purchased and compatible Kinetix® drives are used—providing a cost-effective pathway to coordinated motion for indexing, flying shear, or simple camming applications.SD card data logging and clone functionality:The front-accessible SD card slot on the Allen-Bradley 1769-L19ER-BB1B​ accepts Rockwell-authenticated SD cards for automatic project backup, controller cloning (for fast field replacement), and trend/data log files—features particularly valuable for OEMs shipping identical machines to multiple sites.

Application Field

The Allen-Bradley 1769-L19ER-BB1B​ is purpose-built for standalone or lightly networked machines in industries such as packaging, converting, material handling, assembly, and light process manufacturing. Typical applications include case erectors, carton sealers, bottle cappers, palletizers, small-batch blending skids, and conveyor sortation nodes—anywhere a compact controller with built-in I/O, Ethernet communications, and room for modest I/O expansion is preferred over a bare-bones micro PLC or an overspecified large rack system.Machine builders appreciate that the Allen-Bradley 1769-L19ER-BB1B​ consolidates CPU, I/O, and networking into one DIN-rail device, reducing bill-of-materials complexity and panel real estate while retaining the Logix programming environment their service teams already know. In multi-line production facilities, several Allen-Bradley 1769-L19ER-BB1B​ controllers can be daisy-chained via EtherNet/IP DLR to a supervisory SCADA or MES layer, reporting production counts, alarm states, and receiving recipe downloads—all on a single resilient network ring. Retrofit projects upgrading from legacy SLC 500 or MicroLogix processors often select the Allen-Bradley 1769-L19ER-BB1B​ as a modern, forward-compatible replacement that preserves investment in Rockwell’s ecosystem while delivering significantly enhanced performance, memory, and connectivity.