Allen-Bradley 1769-L31 CompactLogix Controller | Dual RS232

Allen-Bradley 1769-L31: CompactLogix Programmable Automation Controller

The 1769-L31 is a versatile CompactLogix controller for industrial automation. This powerful PAC offers dual RS232 ports and 512KB memory. It supports up to sixteen I/O modules and three expansion banks. The 1769-L31 delivers reliable performance for small to medium applications.

Technical Specifications

• Manufacturer: Allen-Bradley/Rockwell Automation
• Model Number: 1769-L31 Series A/B
• Memory Capacity: 512 kilobytes user memory
• Communication Ports: 2 RS232 (Channel 0 isolated, Channel 1 non-isolated)
• Protocol Support: DF1, DH-485, ASCII protocols
• I/O Capacity: 16 local modules, 3 expansion banks
• Power Requirements: 330mA @ 5V DC, 40mA @ 24V DC
• Battery Backup: 1769-BA battery module
• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Enclosure Rating: Open-style, DIN rail or panel mount

Compatible Accessories

• Battery Module: 1769-BA for memory backup
• Serial Cables: 1747-CP3 / 1756-CP3 for communication
• Memory Cards: 1784-CF64 / 1784-CF128 CompactFlash
• Power Supplies: 1769 series compatible units
• I/O Modules: All 1769 Compact I/O modules

Installation Requirements

• Must be leftmost module in the rack
• Maximum 4-module distance from power supply
• DIN rail or panel mounting installation
• 22-14 AWG copper wiring recommended
• Proper grounding for noise immunity

Shipping & Support

• Worldwide shipping via FedEx, UPS, and DHL
• Package weight: 2 lbs (0.9 kg)
• Package dimensions: 8x8x5 inches
• 12-month manufacturer warranty included
• Complete technical documentation provided

Frequently Asked Questions

• Q: How many communication ports does it have?
  A: It features two RS232 ports with different isolation characteristics.
• Q: What is the maximum I/O expansion capacity?
  A: It supports up to 16 local modules and 3 expansion banks.
• Q: What battery does this controller use?
  A: It uses the 1769-BA battery module for memory backup.
• Q: Can I add non-volatile memory?
  A: Yes, with 1784-CF64 or 1784-CF128 CompactFlash cards.
• Q: What protocols are supported?
  A: DF1, DH-485, and ASCII protocols are supported.

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