Allen-Bradley 1768-L45 CompactLogix Controller

The Allen-Bradley 1768-L45 is a compact and high-performance processor module from the CompactLogix family. Designed for medium-sized automation applications, this controller offers a robust solution with an integrated 3MB memory capacity, an RS232 communication port, and flexible expansion capabilities. It is ideal for industrial environments that require advanced control, motion, and networking functions. The 1768-L45 also supports Ethernet communication through additional modules and provides high isolation and environmental protection.

Technical Specifications

• Manufacturer: Rockwell Automation
• Brand: Allen-Bradley
• Part Number: 1768-L45
• Product Line: CompactLogix
• Product Type: Controller
• Module Type: Processor Module
• Memory: 3MB Integrated
• Operating Temperature Range: 0°C to 60°C (32°F to 140°F)
• Operating Humidity: 5% to 95%, non-condensing
• Power Consumption: 48W maximum
• Power Dissipation: 8.3W

Communication Ports

• RS232: 1 Fully Isolated Port
  • Supports DF1 Full and Half Duplex
  • Supports DH485 Communication Protocol
  • Maximum Speed: 38.4 Kbps
• Ethernet Communication: Supports up to 2 Communication Modules (e.g., 1768-ENBT, 1768-EWEB)

Expansion and I/O Support

• Maximum I/O Modules: 30 modules (up to 3 expansion banks)
• Maximum I/O Banks: 3
• Backplane Current: 2.0A at 24V DC, 5.7A at 5V for 1769 modules
• Isolation Voltage: 30V continuous (Tested at 500V AC for 60 seconds)

Environmental Protection and Certifications

• Vibration: Operating 5G, 10–500 Hz
• Shock Resistance: 30G operating, 50G non-operational
• Enclosure: Open
• Certification: cUL-us, CISPR 11 Group 1, Class A

Installation

• Mounting: Use M4 or #8 screws
• Weight: 0.34 kg (11.9 oz)
• Dimensions: 131.6 x 67.4 x 121.8 mm (5.18 x 2.65 x 4.80 inches)
• Programming Cable: 1747-CP3 or 1756-CP3