Allen-Bradley 1769-L35CR CompactLogix ControlNet CPU Processor Module

Product Description

The 1769-L35CR (1769-L35CR) is a high-capacity, high-performance controller module within the Allen-Bradley CompactLogix family, specifically engineered for applications requiring deterministic and scheduled data exchange. Featuring an integrated ControlNet communication port, this processor is ideal for high-speed I/O synchronization and peer-to-peer interlocking across complex industrial networks.

Built on the unified Logix control engine, the 1769-L35CR (1769-L35CR) provides 1.5 MB of non-volatile user memory, supporting extensive ladder logic, structured text, and function block programming. Its modular, chassis-less design enables the direct connection of up to 30 local 1769 I/O modules across a maximum of three expansion banks. For optimal signal integrity and power distribution, the controller must be positioned within four slots of the system power supply.

Detailed Technical Specifications

The technical parameters below represent the hardware and operational limits for the 1769-L35CR:

• Manufacturer: Allen-Bradley / Rockwell Automation

• Model Number: 1769-L35CR

• Product Type: ControlNet Processor Module

• User Memory: 1.5 MB (Non-volatile Flash / Battery-backed RAM)

• Communication Ports: 1 × ControlNet (BNC Coax), 1 × RS-232 (9-pin D-shell supporting DF1/ASCII)

• Local I/O Capacity: 30 Modules (max 3 I/O banks)

• Expansion Cables: 1769-CRR1, 1769-CRR3, 1769-CRL1, 1769-CRL3

• Backplane Current Draw: 680 mA @ 5.1 V DC

• Power Dissipation: 4.36 Watts

• Power Supply Distance Rating: 4 slots (Processor must be within 4 slots of power supply)

• Replacement Battery: 1747-BA Lithium Battery

• Operating Temperature: 0 to 60 °C (32 to 140 °F)

• Vibration/Shock Resistance: 5 G @ 10–500 Hz / 20 G (Operating)

• Module Dimensions: 132 × 70 × 115 mm

• Weight: 0.37 kg (0.82 lbs)