Allen-Bradley 1769-L16ER-BB1B CompactLogix Controller

The Allen-Bradley 1769-L16ER-BB1B is a high-performance CompactLogix controller from the 5370 L1 series, designed to provide flexibility and scalability for industrial automation applications. This module is equipped with two Ethernet communication ports, offering robust connectivity options. It supports up to six 1734 Point I/O modules and provides 384 KB of memory, allowing for seamless data management and control.

Key Features:

Embedded I/O: 16 sinking digital inputs and 16 sourcing digital outputs
Ethernet Communication: Dual Ethernet ports for flexible network configurations
Expansion Capability: Supports up to 6 local 1734 Point I/O modules
Memory: 384 KB, with an option for expansion via SD card (up to 2GB)
Task Support: Up to 32 tasks with 100 programs per task
Programming Languages: Supports Relay Ladder, Structured Text, Function Block, and SFC

Technical Specifications

Specification	Value
Part Number	1769-L16ER-BB1B
Manufacturer	Allen-Bradley
Product Type	CompactLogix Controller
Product Line	5370 L1 Series
Module Type	Processor Module
I/O Points	16 sinking digital inputs, 16 sourcing digital outputs
Memory	384 KB
Ethernet Ports	2 (Ethernet/IP)
Max. I/O Modules Supported	6 (1734 Point I/O modules)
Programming Languages	Relay Ladder, Structured Text, Function Block, SFC
Tasks Supported	32 tasks, 100 programs per task
Power Supply	24V DC
Current Draw	1 A @ 5V DC
Backplane Current	1 A
Field Power Current (POINTbus)	3 A
Power Dissipation	11.5 W
Mounting	DIN Rail
Wire Size (Solid)	22 to 14 AWG
UNSPSC	32151705

Performance and Communication

The 1769-L16ER-BB1B offers two Ethernet communication ports, providing flexible network configurations. It supports linear, star, and Device Level Ring (DLR) topologies, ensuring enhanced network resiliency. The DLR feature allows automatic recovery from network faults, ensuring continuous system operation.

This CompactLogix controller can manage up to 32 tasks, with each task capable of holding 100 programs. It supports up to 256 controllers, 120 TCP connections, and up to 256 CIP connections, offering robust control for complex industrial processes. The module’s memory capacity is 384 KB, with 1 GB SD card storage included. An additional 2GB SD card can be installed for expanded non-volatile memory.

I/O Expansion

The 1769-L16ER-BB1B comes with embedded 16 digital inputs and 16 digital outputs, both operating at 24VDC. The module also supports up to six 1734 Point I/O expansion modules, providing additional flexibility for I/O expansion. When using expansion modules, ensure that the total current draw does not exceed 1 A from the backplane and 3 A from the POINTbus field power.

Programming and Customization

The 1769-L16ER-BB1B supports multiple programming languages as per IEC 61131-3 standards, including Relay Ladder, Structured Text, Function Block, and Sequential Function Chart (SFC). This allows for easy customization and programming, making it ideal for a wide range of control applications.