Allen-Bradley 1756-L83E | ControlLogix Logix5580 Processor
Introduction:
Allen-Bradley 1756-L83E ControlLogix Logix5580 Processor. 10MB user memory with 1GB Ethernet port. Supports 128,000 I/O points.
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Product Overview
The Allen-Bradley 1756-L83E is a ControlLogix Logix5580 processor module. This controller features 10MB of user memory for data and logic. It includes a built-in 1GB Ethernet port and a USB port. The Allen-Bradley 1756-L83E ships with a 2GB Secure Digital (SD) card pre-installed. Users trust this processor for high-performance control applications.
Technical Specifications
The 1756-L83E delivers powerful processing with extensive I/O capacity. Below are the complete technical details.
General Specifications
Manufacturer: Rockwell Automation for industrial control reliability.
Brand: Allen-Bradley for ControlLogix compatibility.
Part Number: 1756-L83E for precise identification.
Series: ControlLogix 5580 family.
Module Type: Processor Module (Logix5580).
Enclosure: None (open-style).
Weight: 0.25 kg (0.55 lb).
UPC: 887172361357 for universal product identification.
Display: 4 Character Alpha/Numeric Display.
Software Support: Studio 5000 Automation Engineering & Design Environment.
Memory Specifications
User Memory: 10 MB for data and logic.
Nonvolatile Memory: 2 GB (1784-SD2 ships with every controller).
SD Card Pre-installed: 1784-SD2 from Rockwell Automation.
SD Card Warning: Only use Rockwell Automation SD cards to avoid data loss.
Diagnostic Storage: Fault diagnostics saved to SD card.
I/O Capacity
Discrete I/O: 128,000 points.
Analog I/O: 4,000 points.
Total Maximum I/O: 128,000 points.
EtherNet/IP Nodes: 100 or 250 (250 with Studio 5000 v30 or higher).
Task and Program Specifications
Tasks: 32 total.
Programs per Task: Up to 1000 programs/task.
Event Tasks: Supported with all event triggers.
Programming Languages: Relay Ladder, Structured Text, Function Block, SFC.
Communication Specifications
Built-in Ethernet Port: 10/100/1000 Mbps auto-negotiation.
USB Port: Type-B, 12 Mbps for programming and configuration.
Communication Speed: 12 MB/second (USB).
Ethernet Topology: Linear topology through embedded port.
Additional Communication Modules: EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O, SynchLink, third-party networks.
IP Configuration: BOOTP-DHCP utility, Static IP, or Dynamic IP.
Dynamic IP Benefit: Address changes every power cycle for security.
Redundancy and Compatibility
Redundancy Support: Full Support for high availability.
Primary/Secondary Operation: Automatic switch-over on fault.
Remote I/O Systems: Native ControlLogix, Flex I/O, POINT I/O.
PLC Communication: PLC-5, SLC 500, MicroLogix, CompactLogix via messaging.
Controller Redundancy Note: This model does not support controller redundancy (separate from full support noted above).
Power Specifications
Current Draw (1.2 Volts DC): 5 milliamps.
Current Draw (5.1 Volts DC): 1.2 amps.
Backplane Current (1.2V DC): 5 mA.
Backplane Current (5.1V DC): 1.2 mA.
Power Dissipation: 6.2 Watts.
Thermal Dissipation: 21.2 BTU per hour.
Isolation Voltage: 50 Volts Continuous.
Tested Isolation: 1000V AC for 60 seconds.
Environmental Specifications
Operating Temperature: 0 to 60°C.
Relative Humidity: 5 to 95% non-condensing.
Vibration: 2 g at 10 to 500 Hz.
Operating Shock: 30 g.
Non-Operating Shock: 30 g (50 g noted in description).
Energy Storage
Energy Storage Module: Non-removable, embedded in controller.
Backup Power: Maintains memory during power interruptions.
Installation Guide
Follow these steps to install the Allen-Bradley 1756-L83E correctly.
Power Down the Chassis: Turn off all power to the ControlLogix rack.
Locate Processor Slot: Find the designated slot for the controller.
Verify SD Card: Ensure the 1784-SD2 card is properly inserted.
Insert the Module: Slide the 1756-L83E into the slot carefully.
Secure the Module: Lock using the retaining clips at top and bottom.
Connect Ethernet Cable: Attach CAT5e or CAT6 cable to the 1GB port.
Connect USB Device: Use Type-B USB port for programming if needed.
Verify Power Supply: Ensure chassis supply provides 1.2A at 5.1V DC.
Apply Power: Turn on the chassis power supply.
Configure IP Address: Use BOOTP-DHCP utility or static IP assignment.
Select IP Mode: Choose Static IP or Dynamic IP based on security needs.
Launch Studio 5000: Open the automation engineering environment.
Download Program: Transfer application to 10MB user memory.
Add I/O Modules: Configure up to 128,000 discrete I/O points.
Set Up Redundancy: Configure primary and secondary controllers for high availability.
Verify Operation: Test control logic and network communications.
Installation Notes
Only use Rockwell Automation SD cards to prevent data loss or corruption.
Leave the SD card installed for diagnostic data storage.
The energy storage module is non-removable and embedded.
Dynamic IP addresses change every power cycle for advanced security.
The controller supports linear Ethernet topology through the embedded port.
Packaging List
This unit ships as a new and original product.
Allen-Bradley 1756-L83E ControlLogix Logix5580 Processor
1784-SD2 2GB Secure Digital card (pre-installed)
Embedded energy storage module (non-removable)
Product data sheet with specifications
Anti-static factory packaging box
Frequently Asked Questions (FAQ)
1. How much user memory does the 1756-L83E provide?
The Allen-Bradley 1756-L83E provides 10MB of user memory for data and logic. It also includes a 2GB SD card for nonvolatile storage.
2. What Ethernet speed does the 1756-L83E support?
The 1756-L83E supports 10/100/1000 Mbps Ethernet link speeds. The embedded port handles 1GB communication for high-performance networking.
3. How many EtherNet/IP nodes can this controller support?
The Allen-Bradley 1756-L83E supports up to 250 EtherNet/IP nodes when used with Studio 5000 Logix Designer Version 30 or higher.
4. What SD card comes pre-installed with the 1756-L83E?
The 1756-L83E ships with a 1784-SD2 2GB Secure Digital card. Rockwell Automation recommends using only their SD cards to avoid data loss.
5. Does the 1756-L83E support controller redundancy?
The Allen-Bradley 1756-L83E supports redundancy architecture for high availability. The system automatically switches to a secondary processor when the primary faults.