1785-L40E PLC-5 Processor – Ethernet Enabled Industrial Controller

Description

Allen-Bradley 1785-L40E – High-Performance PLC-5 Ethernet Controller

The 1785-L40E from Allen-Bradley delivers robust control capabilities for medium to large industrial automation applications. This advanced PLC-5 processor combines powerful processing with versatile communication options for seamless system integration.

Technical Specifications

• Brand: Allen-Bradley (Rockwell Automation)
• Model: 1785-L40E
• Series: PLC-5/40E Ethernet Processor
• Memory: 48K words user memory
• I/O Capacity: 2048 any mix or 2048 in + 2048 out
• Analog I/O: Up to 2048 points

Communication Ports

• 2x DH+/Remote I/O ports (Adapter or Scanner mode)
• 1x Serial port (RS-232/423/422A configurable)
• 1x Ethernet port (10/100 Mbps)
• Protocols: TCP/IP, Data Highway Plus

Performance Metrics

• I/O Scan Time: 10ms @ 57.6kbps, 3ms @ 230.4kbps
• Backplane Current: 3.3A @ 5V DC
• Power Dissipation: 17.3W maximum
• Chassis Support: Up to 61 total (1 local + 60 remote)
• Clock Accuracy: ±5 minutes per month

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% to 95% non-condensing
• Vibration: 1G operational (10-500 Hz)
• Shock: 30G operational withstand

Compatibility & Integration

• Chassis: 1771-A1B, A2B, A3B, A3B1, A4B
• Power Supplies: 1771-P4S, P6S, P4S1, P6S1
• Memory Backup: 1770-XYC battery, 1785-ME series modules
• I/O Modules: 8-point, 16-point, 32-point, and intelligent I/O
• Certifications: CSA, C-TICK, CE, UL listed

Shipping & Support

• Warranty: 12 months comprehensive coverage
• Shipping: FedEx Priority, UPS Express, DHL Worldwide
• Weight: 1.38 kg (3.0 lbs)
• Packaging: Industrial-grade protective materials

Frequently Asked Questions

• What communication protocols does it support?
  It supports Ethernet/IP, DH+, Remote I/O, and serial communications (RS-232/422/423).
• How many I/O points can it handle?
  It supports up to 4096 I/O points (2048 input + 2048 output complementary).
• What programming languages are available?
  It supports Ladder Logic, Structured Text, and Sequential Function Charts per IEC 61131-3.
• Can it communicate with modern Ethernet devices?
  Yes, the integrated Ethernet port supports 10/100 Mbps communication with TCP/IP protocol.
• What backup options are available for program storage?
  It uses battery-backed RAM and supports EEPROM modules (1785-ME series) for additional backup.

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