AB Allen-Bradley 1756-L83EP ControlLogix 5580E Process Controller

Product Summary

The Allen-Bradley 1756-L83EP is a ControlLogix 5580E Process Controller by Rockwell Automation, featuring 10 MB user memory, a USB 2.0 programming port, and an embedded 1 Gb Ethernet port supporting up to 250 EtherNet/IP devices. The -P suffix denotes the Process Controller variant, pre-configured with a dedicated PlantPAx process tasking model, process instructions, and instruction counter for plantwide distributed control system (DCS) applications. The conformal coating provides enhanced protection for harsh industrial environments.

Core Specifications

• Model Number: 1756-L83EP
• Type: ControlLogix 5580E Process Controller
• User Memory: 10 MB
• Controller Tasks: 32
• Programs Per Task: 1000
• EtherNet/IP Devices: 250
• USB Port: 1x USB 2.0 (12 Mbps) for programming/download
• Ethernet Port: 1x 1 Gb embedded EtherNet/IP
• Display: 4-character alpha/numeric
• Backplane Current: 1.2 A at 5.1 VDC
• Chassis: ControlLogix 1756 series
• Software: Studio 5000 Logix Designer v33 or later
• Manufacturer: Allen-Bradley by Rockwell Automation

Electrical & Functional Characteristics

• Process Tasking Model: Pre-configured PlantPAx process task structure for DCS applications
• Process Instructions: Dedicated PlantPAx instruction set and instruction counter for process control
• Highly Integrated HART: Supports HART device configuration within I/O Configuration tree; diagnostics propagate automatically to controller project
• Redundancy Support: Compatible with ControlLogix 5580 redundancy for high-availability process control
• Security Certification: Supports IEC-62443-3-3 Security Level 1 (SL1) requirements
• Conformal Coating: Protects circuit boards from moisture, dust, and corrosive gases (ISA G3 compliant)
• Status Indicators: RUN, FORCE, I/O status, and Ethernet link/activity LEDs

System Integration & Compatibility

• Primary Platform: ControlLogix 1756 chassis
• Process System: PlantPAx 5.0 distributed control system
• Compatible I/O: All 1756-series I/O modules; FLEX 5000 I/O with integrated HART
• Communication: EtherNet/IP, CIP, MODBUS TCP
• Related Process Controllers: 1756-L81EP (3 MB), 1756-L85EP (40 MB)
• Related Standard Controllers: 1756-L83E (10 MB, non-process), 1756-L83ES (10 MB + 5 MB safety)
• Related Parts: 1756-L83EXT (Xtreme temperature), 1756-L83E-NSE (no stored energy)

Environmental & Operational Limits

• 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% RH, non-condensing
• Vibration: 2G, 10 to 500 Hz
• Shock: 30G operating; 50G non-operating
• Approvals: CE, UL, CUL, ATEX (Zone 2), Marine

Industrial Applications

Designed specifically for PlantPAx distributed control systems in oil & gas, petrochemical, chemical, pharmaceutical, food & beverage, water/wastewater, and power generation industries requiring integrated process control, HART device management, and plantwide optimization.

Frequently Asked Questions

What is the difference between 1756-L83E and 1756-L83EP?

The 1756-L83E is a standard ControlLogix 5580 controller with 10 MB memory. The 1756-L83EP is the Process Controller variant with pre-configured PlantPAx process tasking model, process instructions, and instruction counter optimized for DCS applications. Both have identical hardware and memory.

What does the conformal coating do?

The conformal coating protects the controller's circuit boards from moisture, dust, and corrosive gases (ISA G3 rated), making it suitable for harsh industrial environments such as chemical plants and offshore platforms.

How many EtherNet/IP devices can this controller support?

The 1756-L83EP supports up to 250 EtherNet/IP devices on its embedded 1 Gb Ethernet port.

What software do I need to program this controller?

Studio 5000 Logix Designer v33 or later is required, with the PlantPAx process add-on for full process instruction support.

What are the related part numbers?

• 1756-L81EP — ControlLogix 5580E Process Controller, 3 MB
• 1756-L83E — ControlLogix 5580, 10 MB standard (non-process)
• 1756-L83EP — ControlLogix 5580E Process Controller, 10 MB (this part)
• 1756-L83ES — GuardLogix 5580, 10 MB + 5 MB safety
• 1756-L85EP — ControlLogix 5580E Process Controller, 40 MB
• 1756-L83EXT — Xtreme temperature version (-20°C to +70°C)