Allen Bradley 1785-L40E Ethernet Processor Module

Overview

The Allen Bradley 1785-L40E is a high-performance Ethernet Processor Module from Rockwell Automation's PLC-5 series. It enables seamless communication between PLC systems and other devices on an Ethernet network. With support for Ethernet/IP, Data Highway Plus (DH+), and serial communication, it offers a versatile solution for industrial control applications. The module provides reliable data exchange and high memory capacity for efficient program and data storage.

Technical Specifications

• Manufacturer: Rockwell Automation
• Part Number: 1785-L40E
• Module Type: Ethernet PLC-5 Processor
• Product Family: PLC-5
• Product Type: Processor Module

Memory

• User Memory: 48 KWords
• Backup: Battery-backed static RAM and optional EEPROM backup

Communication Interfaces

• Ethernet/IP: Dedicated port for Ethernet communication
• DH+ Ports: 2 ports for Data Highway Plus network connections
• Serial Ports: 1 configurable RS-232/422/423 serial port

I/O Capacity

• Max Total I/O: 2048 (any mix)
• Max I/O Per Link: 32
• Max I/O Chassis Total: 61
• Max I/O Chassis Universal Remote: 60

Operating Conditions

• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Non-Operating Temperature: -40°C to 85°C (-40°F to 185°F)

Power and Load

• Backplane Current Load: 3.3A
• Power Dissipation: 17.3W

Scan Time

• 10 ms at 57.6 kbits/s
• 7 ms at 115.2 kbits/s
• 3 ms at 230.4 Mbits/s

Expansion and Backup

• Coprocessor Expansion Port: Yes
• Battery: 1770-XYC