ControlLogix 1756-L81EP Process Controller | Allen-Bradley

Allen-Bradley 1756-L81EP ControlLogix PAC: Extreme-Temperature Process Controller with Conformal Coating

Complete technical details: Download 1756-L81EP Process Controller Manual (PDF)

Technical Specifications

• Brand: Allen-Bradley (Rockwell Automation)
• Model: 1756-L81EP ControlLogix
• Series: 5580E Process Controller
• Memory: 3MB user memory
• Temperature Range:
  • -25°C to 70°C operating (-13°F to 158°F)
  • Widest in ControlLogix series
• Communication:
  • 1Gb Ethernet port
  • USB 2.0 (12 Mbps)
• Processing Power:
  • 32 controller tasks
  • 1000 programs per task
• Power Requirements:
  • 1.2A at 5.1V
  • Special conformal-coated (“K”) version available

Environmental Protection

• Special conformal coating for harsh conditions
• Corrosion-resistant design
• Ash and chemical exposure protection
• No Stored Energy (NSE) safety feature

Installation & Control

• Fits any ControlLogix chassis slot
• Multiple controllers per chassis
• Backplane and network I/O monitoring
• 4-character diagnostic display

Package & Support

• Includes: Controller module, documentation
• 12-month warranty – Defect coverage
• Global shipping: FedEx, UPS, DHL options

Expert FAQ

• Q: What is conformal coating?
  A: Protective layer against chemicals/corrosion
• Q: Minimum operating temperature?
  A: -25°C (-13°F) – lowest in series
• Q: How many Ethernet devices supported?
  A: 100+ EtherNet/IP connections
• Q: What does “K” suffix mean?
  A: Indicates conformal-coated version
• Q: NSE feature purpose?
  A: Ensures safe transport after shutdown