Allen-Bradley 1769-L18ER-BB1B Detailed Description
CompactLogix 5370 L1 Controller with Integrated 16 DI / 16 DO
The Allen-Bradley 1769-L18ER-BB1B is a CompactLogix 5370 L1 controller with integrated digital I/O, built for compact machine-level control applications. As part of Rockwell Automation’s CompactLogix 5370 family, this programmable automation controller combines 512 KB of user memory, 32 tasks with up to 1000 programs per task, embedded 16-point 24 V DC sink/source digital inputs and 16-point digital outputs, and dual-port EtherNet/IP connectivity — all in a slim, DIN rail or panel mountable package. Whether you are building a new machine-level control system, upgrading an aging PLC processor, or replacing a failed CompactLogix controller, the 1769-L18ER-BB1B delivers the processing power, embedded I/O, and network capability modern production environments demand.
Key Features & Benefits
- 512 KB user memory — solid capacity for machine-level logic and multi-program applications; 32 tasks with up to 1000 programs per task.
- Integrated 16 DI / 16 DO — sixteen 24 V DC sink/source digital inputs and sixteen digital outputs are built into the controller body, reducing cabinet space, wiring, and spare-part inventory for small machines.
- Dual-port EtherNet/IP with DLR support — daisy-chain (Device Level Ring) topologies without an external switch; supports linear, star, and ring network configurations for machine builder applications.
- USB programming port — temporary direct connection for configuration with Studio 5000 Logix Designer (RSLogix 5000) software.
- Up to 8 local POINT I/O modules — extend beyond the embedded I/O with 1734-series POINT I/O modules for additional digital, analog, and specialty signals.
- Internal energy storage — the controller eliminates the need for a battery, reducing maintenance and the risk of memory loss during power events.
- 1 GB SD memory card (1784-SD1) — shipped with the controller for nonvolatile storage, fast controller replacements, and program backup.
- Flexible mounting — DIN rail or panel mount with a slim 100 mm body width that conserves enclosure space.
Compatible Hardware
The 1769-L18ER-BB1B works with 1734 POINT I/O expansion modules (up to 8 local modules), 1784-SD1/SD2 SD memory cards, and PanelView operator interfaces. It is programmed with Studio 5000 Logix Designer (formerly RSLogix 5000) and integrates seamlessly into FactoryTalk-enabled architectures. For applications requiring safety-rated control, consider the 1769-L18ERM-BB1B Compact GuardLogix variant with the same form factor.
Technical Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Part Number | 1769-L18ER-BB1B |
| Product Line | CompactLogix 5370 L1 |
| Product Type | Programmable Automation Controller |
| User Memory | 512 KB onboard |
| Nonvolatile Memory | 1 GB SD memory card (1784-SD1, shipped with controller) |
| Integrated Digital Inputs | 16 × 24 V DC sink/source inputs |
| Integrated Digital Outputs | 16 × 24 V DC outputs |
| Tasks / Programs per Task | 32 tasks / 1000 programs |
| Local I/O Modules | Up to 8 local 1734 POINT I/O modules |
| Communication Ports | 2 × EtherNet/IP (DLR support) + 1 × USB (temporary connection) |
| Supported Topologies | Linear, traditional star, DLR (Device Level Ring) |
| Internal Energy Storage | Supported (battery not required) |
| Wire Size | 22 to 14 AWG |
| Power Dissipation (full load) | 11.5 W |
| Mounting | DIN rail or panel mount |
| Enclosure Type | Open-Style |
| Dimensions (W × D × H) | 100 × 105 × 130 mm (3.94 × 4.13 × 5.11 in); 144 mm high including mounting clips |
| Weight | 2.00 lbs (0.91 kg) |
| UPC | 612598968657 |
| Country of Origin | Singapore |
Why Choose the Allen-Bradley 1769-L18ER-BB1B
The 1769-L18ER-BB1B is the flagship member of the CompactLogix 5370 L1 family: it keeps the same dual-port EtherNet/IP hardware, 32-task execution engine, and open-style DIN rail package as its L16 sibling while adding a larger 512 KB memory and a full complement of embedded 16-point digital input and output circuits — making it the economical choice for single-machine control panels and compact OEM equipment that would otherwise need a separate I/O module. Plants standardizing on Rockwell Automation’s Logix platform benefit from common programming tools, spare-parts interchangeability, and a straightforward migration path to the CompactLogix 5370 L3 controllers. Every Allen-Bradley 1769-L18ER-BB1B we ship is tested, backed by warranty, and available both new in original packaging and as a cost-saving refurbished unit.
Looking for the best 1769-L18ER-BB1B price? Order the Allen-Bradley 1769-L18ER-BB1B CompactLogix controller here — in stock, with fast worldwide shipping and expert technical support.
Documents
GENERAL
| Resource | Title | Link |
|---|---|---|
| Product Cutsheet | 1769-L18ER-BB1B — CompactLogix 5370 L1 Controller Product Cutsheet | Product Cutsheet API |
| Technical Detail | 1769-TD005 — CompactLogix 5370 Controllers Technical Data (English) | 1769-td005_-en-p.pdf |
| Product Profile | 1769-PP012A-EN-E — CompactLogix 5370 Controller Systems Product Profile | 1769-PP012A-EN-E.pdf |
| Selection Guide | 1769-SG001 — 1769 CompactLogix Modular I/O Selection Guide (English) | 1769-sg001_-en-p.pdf |
TECHNICAL DATA
| Resource | Title | Link |
|---|---|---|
| Publication | 1769-TD005 — CompactLogix 5370 Controllers Technical Data (English) | 1769-td005_-en-p.pdf |
USER MANUAL
| Resource | Title | Link |
|---|---|---|
| Publication | 1769-UM021 — CompactLogix 5370 Controllers User Manual (English) | 1769-um021_-en-p.pdf |

















