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Allen-Bradley | 1785-L40C15 Controller Module

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About the Product

Allen-Bradley 1785-L40C15 ControlNet PLC-5/40C Controller

Core Specifications
Processor Type PLC-5/40C ControlNet
Memory Capacity 48K words (expandable with EEPROM modules)
I/O Capacity 2048 total (any mix) or 2048 Input/2048 Output
Weight 1.36kg
Scan Times 0.5ms/K-word (bit logic), 2ms/K-word (typical)
Communication Ports
ControlNet Ports 2 (supports hot backup)
DH+/RIO Data Highway Plus, Remote I/O
Serial Port RS-232/422/423 (DF1 and ASCII protocols)
Expansion Control Coprocessor Expansion Port
System Architecture
Max I/O Chassis 125 total (60 Universal Remote max)
Compatible I/O 1771, 1794, 1746, 1791 (8/16/32-pt & intelligent modules)
Chassis Types 1771-A1B, -A2B, -A3B, -A3B1, -A4B
Addressing Modes 2-slot, 1-slot, 1/2-slot
Memory & Backup
Battery Backup 1770-XYC battery (RAM retention)
EEPROM Options 1785-ME32 (32K), ME64 (64K), M100 (100K)
Redundancy Supported (1785-CBHM Hot Backup Cartridge)

Key Features

  • Dual ControlNet ports for high-speed communication
  • Supports distributed I/O architectures
  • Hot-swappable battery replacement
  • Industrial-grade reliability with redundancy support
  • Multiple network protocol support (DH+, RIO, ControlNet)

Order Information

• Part Number: 1785-L40C15

• In stock - ready for immediate shipment

• Global shipping options available

• 12-month manufacturer warranty

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  • Warranty: NexAuto offers a 12-month warranty on all parts purchased from us, in addition to any manufacturer coverage.
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  • Custom Calibration: Provide your specifications, and we’ll handle the rest with precision.
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