Allen-Bradley 1769-L31 CompactLogix PAC – Dual Serial Control Solution
Essential Controller Features
This Allen-Bradley 1769-L31 CompactLogix PAC delivers industrial automation control with dual RS232 ports. Perfect for small/mid applications. Features 512KB user memory and supports 16 I/O modules across 3 expansion banks.
Technical Specifications
- Brand: Allen-Bradley
- Model: 1769-L31 (Series A/B)
- Communication: 2x RS232 ports (38.4 kbps speed)
- Channel Isolation: Channel 0: Full isolation; Channel 1: Non-isolated
- Memory Capacity: 512KB + CompactFlash support
- I/O Capacity: 16 modules max
- Expansion Banks: 3 banks max
- Operating Temp: 0°C to 60°C (32°F to 140°F)
- Power Distance: Within 4 modules of power supply
- Vibration Resistance: 5G (10-500 Hz)
- Dimensions: 8 x 8 x 5 inches
- Weight: 2 lbs
Installation Notes
Mount on DIN rail or panel. Must be leftmost module in system. Keep within 4 modules of power source. Allow 2-inch clearance for cooling. Use 14-22 AWG copper wire.
Compatibility Guide
Works with all 1769 Compact I/O modules. Compatible power supplies: 1769-PA2/PB2/PA4/PB4. Use 1747-CP3 or 1756-CP3 serial cables. Battery: 1769-BA. Memory cards: 1784-CF64/CF128.
Professional FAQs
Q: What protocols do the serial ports support?
A: Channel 0: DF1, DH-485, ASCII; Channel 1: DF1, DH-485
Q: Can I expand memory beyond 512KB?
A: Yes, using 1784-CF64 (64MB) or 1784-CF128 (128MB) CompactFlash cards
Q: What’s the maximum cable length for RS232?
A: 50 feet (15 meters) at 38.4 kbps speed
Q: How many tasks can this controller handle?
A: Supports up to 4 simultaneous control tasks
Q: Is the battery user-replaceable?
A: Yes, use 1769-BA battery (BAT LED indicates status)
Package & Warranty
- 1769-L31 Controller unit
- Installation guide
- 12-month product warranty
Shipping Options
Fast worldwide delivery via FedEx, UPS, or DHL. Tracking provided for all orders.
Get Started Now
- Download full technical manual:
Click Here for 1769-L31 Documentation - Need help? Contact our automation specialists
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