Processor Module Allen-Bradley | 1785-L20C15

1785-L20C15 ControlNet PLC-5 Processor

Core Specifications

• 16KWords user memory (expandable)
• Handles 512 I/O points (any mix) or 3200 non-forcible
• 2.7A backplane current at 5V DC
• 54 BTU/hour heat dissipation
• Weight:1.36kg

ControlNet Features

• Phase 1.5 ControlNet compatible
• 0.5ms average scan time for ControlNet I/O
• Supports scheduled & unscheduled messaging
• RJ-45 NAP port + BNC coax connectors

Communication Ports

• 1 dedicated DH+ port (Channel 1A)
• 1 configurable DH+/RIO port (Channel 1B)
• 1 RS-232 port (Channel 0) with optical isolation
• Supports DF1, ASCII protocols

System Configuration

• Supports 77 total chassis (12 remote max)
• Remote I/O scan time as fast as 3ms
• Three operating modes: RUN/PROG/REMOTE
• Front-panel status indicators for all channels

Memory & Backup

• Battery-backed RAM (lithium battery)
• Optional EEPROM modules available
• Memory expansion up to 100KWords

Industrial Applications

• High-speed manufacturing systems
• Process control networks
• Material handling automation
• Distributed control systems

Physical Specifications

• Operating temperature: 0-60°C (32-140°F)
• Single-slot installation
• 25-pin, 8-pin mini DIN, and RJ-45 connectors