Allen-Bradley 1769-L35CR CompactLogix Processor

Overview

The Allen-Bradley 1769-L35CR CompactLogix processor offers excellent performance in industrial control applications. It comes equipped with 1.5MB of memory and supports ControlNet communication via an RS-232 port. This compact processor module integrates easily into automation systems and allows for seamless device connectivity using 1756-CP3 and 1747-CP3 cables.

Key Features

Manufacturer: Allen-Bradley
Product Line: CompactLogix
Part Number: 1769-L35CR
Module Type: Processor Module
Communication: ControlNet (via RS-232 port)
Memory: 1.5MB
Wire Type: Copper-90°C
Wire Size (Solid): 22-14 AWG
Wire Size (Stranded): 22-16 AWG
Series: A and B
Product Lifecycle: Discontinued/Obsolete
UNSPSC Code: 32151705

Technical Specifications

The 1769-L35CR stands out for its reliable operation and ability to handle heavy industrial demands. It offers detailed specifications that ensure high-quality performance. Below is a summary of the key technical parameters:

Specification	Details
Operating Voltage	24V DC
Current Draw (5V DC)	680mA
Heat Dissipation	4.36W
Backplane Current (5V DC)	680mA
Max Wire Insulation	30V DC
Expansion Capacity	30 I/O modules
Mounting Type	DIN rail or panel mount
Shock Rating	20G operational
Vibration Rating	5G (10–500Hz)
Storage Temperature	-40 to 85°C (-40 to 185°F)
Operating Temperature	0 to 60°C (32 to 140°F)
Humidity	0–95% non-condensing
Torque	1.1 to 1.8 Nm

Dimensions and Weight

Weight: 0.81 lbs (0.37 kg)
Dimensions: 4.7 x 3.0 x 2.3 inches (119.4 x 76.2 x 58.4 mm)

Performance and Durability

The 1769-L35CR offers strong durability for use in harsh industrial environments. The module can resist operational shocks up to 20G and vibrations up to 5G, ensuring reliable operation in dynamic environments. Furthermore, it works effectively across a wide temperature range from -40°C to 85°C. This enables its use in both high-temperature and cold storage environments.

I/O Expansion

The 1769-L35CR supports expansion up to 30 I/O modules, making it highly flexible. With the use of two expansion cables, users can connect up to three I/O banks. Each I/O bank receives its own power, which allows for improved system flexibility and scalability. This modular approach simplifies the adaptation to varying industrial needs.

Mounting and Installation

This processor module offers two mounting options: it can be mounted on a DIN rail or directly on a panel. The 1769-L35CR is easy to install in either configuration, providing users with versatility in different setups. With a shock resistance rating of 20G, it remains durable under tough conditions, while its vibration resistance ensures it performs reliably even in environments with heavy machinery movement.

Conclusion

The Allen-Bradley 1769-L35CR CompactLogix ControlNet processor is designed to deliver exceptional performance and flexibility. It supports up to 30 I/O modules, making it an ideal choice for expanding automation systems. Additionally, its rugged design, broad temperature tolerance, and robust communication capabilities allow it to thrive in a wide variety of industrial environments. Whether you are looking for reliability in extreme temperatures or need flexible expansion options, the 1769-L35CR stands ready to meet your needs.