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Ethernet Controller | 1785-L40E Allen-Bradley

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About the Product

Allen-Bradley 1785-L40E PLC-5/40E Ethernet Controller

Core Specifications
Processor Type PLC-5/40E with Ethernet
Memory Capacity 48K words (expandable with EEPROM modules)
I/O Capacity 2048 total (any mix) or 2048 Input/2048 Output
Analog I/O 2048 points
Weight 1.36kg
Power Requirements 3.3A @ 5V DC, 17.3W dissipation
Communication Ports
Ethernet Port 1 (10/100 Mbps TCP/IP)
DH+/RIO Ports 2 (Data Highway Plus/Remote I/O)
Serial Port 1 (RS-232/422/423)
Programming Languages Ladder Logic, SFC, Structured Text (IEC 61131-3)
System Architecture
Max I/O Chassis 61 total (60 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
Environmental Specifications
Operating Temperature 0°C to 60°C (32°F to 140°F)
Storage Temperature -40°C to 85°C (-40°F to 185°F)
Humidity 5-95% non-condensing
Certifications UL, CE, CSA, C-TICK

Key Features

  • Integrated 10/100 Mbps Ethernet port for modern connectivity
  • Supports multiple industrial protocols (DH+, RIO, Ethernet/IP)
  • Advanced control capabilities including PID algorithms
  • Battery-backed memory with optional EEPROM expansion
  • Rugged industrial design with 30G shock resistance

Package Contents

  • 1785-L40E Controller module
  • 1770-XYC battery module (pre-installed)
  • Documentation set

Order Information

• Part Number: 1785-L40E

• UPC: 10612598126436

• In stock - ready for immediate shipment

• Global shipping via FedEx/UPS/DHL

• 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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