Product Overview

The Allen-Bradley 1769-L35CR belongs to the CompactLogix family of programmable controllers. This processor provides ControlNet communication with redundant port capability. The Allen-Bradley 1769-L35CR has a Logix controller architecture for advanced control applications. You get 1.5MB of memory for program and data storage. The processor supports up to 30 I/O modules with expansion cables. The Allen-Bradley 1769-L35CR is discontinued but remains available as an obsoleted unit.

Technical Specifications

The Allen-Bradley 1769-L35CR delivers reliable ControlNet processing for CompactLogix systems. All parameters follow the official datasheet.

Processor & Memory

• Module type: Processor Module

• Memory: 1.5 MB

• Product line: CompactLogix

• Communication: Serial and ControlNet

• Series: A and B

Communication Ports

• RS-232 serial port: DF1 and ASCII protocol support

• ControlNet Channel A: Primary ControlNet port

• ControlNet Channel B: Redundant ControlNet port

• NAP port: Network Access Port for programming

• Compatible cables: 1756-CP3 and 1747-CP3 for RS-232 connections

I/O Expansion Capacity

• Maximum I/O modules: 30 modules

• Maximum I/O banks: 3 banks

• Expansion method: Unique expansion cables to connect banks

• Power supply requirement: Each I/O bank requires a separate power supply

• Controller uniqueness: Only one 1769-L35CR per Logix system

Power Supply Placement

• Power supply distance rating: Within 4 modules of power supply

• The Allen-Bradley 1769-L35CR must be strategically placed for proper power distribution.

Electrical Specifications

• Backplane current (5V DC): 680 mA

• Heat dissipation: Up to 4.36 W

• Maximum wire insulation voltage: 30V

Environmental Specifications

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

• Storage temperature: -40°C to 85°C (-40°F to 185°F)

• Relative humidity: 0 to 95 percent non-condensing

Mechanical & Shock Ratings

• Operational shock (DIN rail mount): 20G

• Operational shock (panel mount): 20G

• Operational vibration: 5G at 10 to 500 Hz

• Mounting torque: 1.1 to 1.8 Nm

Wiring Specifications

• Wire type: Copper at 90 degrees Celsius

• Wire size (solid): 22-14 AWG

• Wire size (stranded): 22-16 AWG

Physical Specifications

• Weight: 0.32 kg (0.70 lb)

• Shipping weight: 2 lbs

• Shipping dimensions: 8 x 8 x 5 inches

Mounting Options

• DIN rail: Yes

• Panel mount: Yes

Product Lifecycle

• Status: Discontinued / Obsolete

• UPC: 10612598309532

• UNSPSC: 32151705

Installation Guide

Follow these steps to install the Allen-Bradley 1769-L35CR correctly.

1. Power down the CompactLogix system before processor installation.

2. Mount the 1769-L35CR on DIN rail or panel at 20G shock rating.

3. Position the processor within 4 modules of the power supply.

4. Connect ControlNet cables to Channel A and Channel B for redundancy.

5. Connect RS-232 serial cable using 1756-CP3 or 1747-CP3 as needed.

6. Expand I/O banks using unique expansion cables with separate power supplies.

7. Apply torque at 1.1 to 1.8 Nm and power up the Allen-Bradley 1769-L35CR.

Packing List

This package for the Allen-Bradley 1769-L35CR includes the following items.

• Allen-Bradley 1769-L35CR ControlNet processor module (one unit)

• Product documentation and installation guide

• Anti-static protective bag

Frequently Asked Questions (FAQ)

1. How much memory does the 1769-L35CR have?
The Allen-Bradley 1769-L35CR has 1.5 MB of memory. This memory supports program storage and data handling for CompactLogix applications.

2. How many I/O modules can the 1769-L35CR support?
The Allen-Bradley 1769-L35CR supports up to 30 Compact I/O modules. These modules can be distributed across 3 I/O banks with separate power supplies.

3. Does the 1769-L35CR support redundant ControlNet communication?
Yes, the Allen-Bradley 1769-L35CR has two ControlNet ports. Channel A and Channel B provide redundant communication capability for high availability.

4. What is the power supply distance rating for the 1769-L35CR?
The Allen-Bradley 1769-L35CR must be placed within 4 modules of the power supply. This ensures proper power distribution to the processor.

5. Is the 1769-L35CR still in production?
No, the Allen-Bradley 1769-L35CR is discontinued by the manufacturer. This product has an obsolete lifecycle status from Rockwell Automation.