Product Details
Product Overview
The Allen-Bradley 1769-L31 functions as a robust, mid-range controller within the CompactLogix 5331 system architecture. This module provides a high-performance solution for machine-level control applications that require localized I/O and serial-based communication. It features 512 KB of user memory and supports complex discrete and basic process control loops. We supply this unit as 100% Brand New original factory stock, ensuring the hardware meets all original Rockwell Automation performance benchmarks for legacy system maintenance and new small-scale machine builds.
Technical Specifications
| Feature | Specification |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Line | CompactLogix (5331 Series) |
| User Memory | 512 Kilobytes |
| Communication Ports | Dual (2) RS-232 (Channel 0: Isolated; Channel 1: Non-isolated) |
| Protocols Supported | DF1, DH-485, ASCII |
| Max I/O Modules | 16 Modules (Supports up to 3 I/O Banks) |
| Battery Replacement | 1769-BA |
| Operating Temperature | 0°C to +60°C (+32°F to +140°F) |
| Vibration Rating | 5G @ 10 to 500 Hz |
| Programming Cable | 1747-CP3 or 1756-CP3 |
| Weight | 0.69 lbs (0.31 kg) |
Engineering Advantages
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Optimized Serial Connectivity: The 1769-L31 integrates two onboard RS-232 ports, eliminating the need for additional serial modules. Channel 0 provides full isolation to protect the controller from ground loops and electrical noise when connecting to external HMIs or modems.
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Scalable I/O Expandability: This controller manages up to 16 local 1769 I/O modules across three expansion banks. This scalability allows engineers to build high-density control systems within a compact DIN-rail footprint.
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Rugged Environmental Tolerance: The module withstands vibrations up to 5G and operates reliably in temperatures up to 60°C. These specifications ensure stable logic execution in harsh cabinet environments near heavy rotating machinery or high-heat processes.
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Simplified Programming Path: By utilizing standard DF1 and DH-485 protocols, the 1769-L31 integrates seamlessly into existing plant-wide serial networks. It supports 22-14 AWG solid copper wiring, providing secure physical connections for industrial-grade cabling.
FAQs
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Does the 1769-L31 support Ethernet/IP communication? No. The 1769-L31 relies exclusively on serial communication (RS-232). If your application requires Ethernet connectivity, consider the 1769-L32E or L35E models.
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How many I/O modules can I place on one side of the power supply? The 1769-L31 has a power supply distance rating. You must place I/O modules within 4 slots of the power supply to ensure sufficient current distribution across the backplane.
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Is the internal battery included? While the controller uses the 1769-BA battery for memory retention, we recommend verifying the battery status upon installation. As this is a 100% Brand New unit, the hardware is in pristine condition, but we suggest keeping a spare 1769-BA on hand.
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Can I use 1747-CP3 cables for programming? Yes. The 1769-L31 is fully compatible with both 1747-CP3 and 1756-CP3 serial cables for direct connection to a PC for configuration and logic uploads.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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