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Product Description

The 1769-L19ER-BB1B is a compact Logix L1 controller for small-to-mid-size industrial automation. It combines CPU, built-in 24V DC power supply, and integrated digital I/O in a DIN-rail-mounted form factor, eliminating the need for batteries by using maintenance-free energy storage. Expansion is via the 1734 POINT I/O system, with dual-port Ethernet for DLR or linear topologies, making it ideal for localized machine control.


Technical Specifications

Item Specification
Catalog Number 1769-L19ER-BB1B
User Memory 1 MB (volatile)
On-Board I/O 16 × 24 V DC inputs / 16 × 24 V DC outputs
Ethernet Ports 2 × EtherNet/IP (DLR and linear topologies)
Network Capacity Up to 8 EtherNet/IP nodes
Expansion Up to 6 local 1734 POINT I/O modules
Programming Port 1 × USB 1.1 (high-speed)
Non-Volatile Storage 1 GB SD card (1784-SD1 included)
Power Supply Integrated 24 V DC input
Module Width 100 mm
Operating Temperature 0–60 °C 
Programming Environment Studio 5000 Logix Designer / RSLogix 5000
Data Integrity Maintenance-free energy storage (no battery)
Tasks Supported 32 tasks, 100 programs per task

Key Notes

  • Battery-free design: uses internal capacitors for RTC and SD memory transfer

  • Supports dual-port Ethernet for star, linear, or redundant ring networks

  • Local expansion limited to 1734 POINT I/O; 1769 Compact I/O is not supported

  • Supports 32 tasks with up to 100 programs per task, despite compact size

  • BB1B and BB2B are functionally interchangeable in most Studio 5000 projects

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