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A-B 1769-L32E CompactLogix Programmable Automation Controller (PAC) – Complete Product Documentation

Product Overview

The Allen-Bradley 1769-L32E​ is a high-performance CompactLogix programmable automation controller (PAC) designed for intermediate-scale industrial automation applications. As part of Rockwell Automation’s 5370 CompactLogix series, the 1769-L32E​ delivers robust machine control capabilities and seamless integration within larger automation architectures. This controller features a compact, modular design that optimizes panel space while delivering substantial processing power with 750KB of user memory. With its integrated EtherNet/IP and RS-232 communication ports, the 1769-L32E​ serves as a strategic connectivity hub that bridges field devices with higher-level supervisory systems, enabling comprehensive data exchange and real-time control decision-making. The controller supports expansion through up to 16 Compact I/O modules distributed across three I/O banks, providing flexibility to scale control systems according to application requirements. Engineered for industrial environments, the 1769-L32E​ operates reliably across a wide temperature range from 0°C to 60°C with robust immunity to vibration and electrical noise commonly found in manufacturing facilities .

The controller serves as an ideal migration path for legacy Allen-Bradley PLC systems including PLC-5 and SLC-500 platforms, offering enhanced functionality while protecting existing automation investments. With support for RSLogix 5000 programming software and multiple programming languages including ladder logic, function block diagram, and structured text, the 1769-L32E​ provides engineering flexibility for implementing complex control strategies. Its non-volatile memory option using CompactFlash cards (1784-CF128) ensures program retention during power cycles, while the replaceable battery (1769-BA) maintains controller memory integrity. The 1769-L32E​ is designed for both DIN rail and panel mounting, with simplified installation procedures that reduce commissioning time and integration costs across various industrial applications from discrete manufacturing to process automation .

Technical Specifications

Main Features and Advantages

Advanced Communication Capabilities: The 1769-L32E​ controller features integrated dual communication ports including an EtherNet/IP interface for high-speed network connectivity and an RS-232 serial port configurable for DF1, DH485, or ASCII protocols. This versatile communication portfolio enables seamless integration with various devices including bar code scanners, vision systems, drives, and HMI interfaces. The EtherNet/IP port supports linear and ring network topologies, providing flexible networking options for distributed control applications. The controller’s default configuration facilitates quick startup, while advanced users can customize communication parameters to optimize network performance for specific application requirements .

High-Speed Processing and Flexible Programming: With a processing speed of 0.5μs per instruction, the 1769-L32E​ delivers exceptional scan time performance for demanding control applications. The controller supports multiple program execution modes including continuous task execution and periodic tasks, enabling precise timing control for critical processes. With support for RSLogix 5000 programming environment, engineers can implement control strategies using multiple programming languages including ladder logic, function block diagram, structured text, and sequential function chart. The 1769-L32E​ provides substantial internal resources including 8,512 internal coils, 640 timers, 640 counters, and 8,512 data registers, facilitating implementation of complex control algorithms without external support devices .

Robust Design and Reliability: Engineered for industrial environments, the 1769-L32E​ features a rugged construction that withstands harsh operating conditions including temperature extremes, vibration, and electrical noise. The controller’s operating shock rating of 30G and non-operating shock rating of 50G ensure durability in high-vibration applications. With Group 1 emission certification and noise immunity specifications, the 1769-L32E​ maintains reliable operation in electrically noisy industrial environments. The controller’s compact footprint and flexible mounting options (DIN rail or panel) simplify integration into space-constrained enclosures while maintaining accessibility for maintenance operations .

Application Areas

The 1769-L32E​ finds extensive application across diverse industrial sectors requiring reliable intermediate-scale automation control. In manufacturing automation, the controller orchestrates complex machining cells, assembly lines, and material handling systems, providing precise sequencing and coordination of manufacturing operations. For process industries, the 1769-L32E​ implements critical control strategies for batching, filling, packaging, and process control applications where analog loop control and discrete device integration are required. The controller’s robust communication capabilities make it particularly suitable for networked control applications in distributed processes such as water/wastewater treatment plants, where multiple 1769-L32E​ units can be deployed across geographically dispersed locations while maintaining centralized supervision via EtherNet/IP connectivity .

In energy management systems, the 1769-L32E​ provides sophisticated control for HVAC systems, pump station control, and power monitoring applications, optimizing energy consumption while maintaining operational parameters. The controller’s support for multiple communication protocols enables integration with intelligent motor starters, variable frequency drives, and energy meters for comprehensive energy management solutions. For material handling and logistics applications, the 1769-L32E​ coordinates conveyor systems, sortation equipment, and automated storage/retrieval systems, providing the processing power necessary for complex motion control and tracking operations. The controller’s compact form factor and expandable I/O architecture make it ideal for OEM machinery where panel space is limited but control requirements are substantial, including packaging machinery, textile equipment, and specialty manufacturing systems .

Related Products

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1769-IQ16: 16-point DC input module compatible with the 1769-L32E​ controller, providing digital input interfaces for sensors and switches

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1769-OB16: 16-point DC output module offering transistor outputs for controlling actuators, indicators, and other field devices

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1769-PA2: Power supply module specifically designed for the 1769 series, providing 120/240V input with optimized power delivery for controllers and I/O modules

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1769-BA: Replacement battery module for the 1769-L32E​ controller, ensuring memory retention during power interruptions

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1784-CF128: CompactFlash memory card offering non-volatile storage expansion for program backup and data logging capabilities

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1769-IF4: Analog input module providing 4 channels of analog signal conditioning for process variable monitoring

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1769-OF4CI: Analog output module with 4 configurable output channels for controlling analog devices such as proportional valves and variable speed drives

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1756-CP3: Communication cable for connecting the 1769-L32E​ to programming devices and networks for configuration and monitoring

HS:8538 9000.00

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