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1769-L31ER-NSE Allen-Bradley Programmable Controller
  • 1769-L31ER-NSE Allen-Bradley Programmable Controller
1769-L31ER-NSE Allen-Bradley Programmable Controller

Allen Bradley

1769-L31ER-NSE Allen-Bradley Programmable Controller

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  • Manufacturer: Allen Bradley

  • Product No.: 1769-L31ER-NSE

  • Product Type: Programmable Controller

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 170g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Overview

The 1769-L31ER-NSE is a specialized CompactLogix 5370 L3 controller designed for environments where stored energy is restricted. The "NSE" (No-Stored Energy) model lacks internal capacitors or batteries for RTC or volatile memory retention, making it suitable for hazardous locations such as mining or explosive atmospheres. It delivers reliable processing power and high-speed communication within a compact, fanless design.

Technical Specifications

Item Specification
Processor Model 1769-L31ER-NSE
User Memory 1 MB built-in
Energy Storage None (Requires SD card for program retention)
Non-Volatile Storage 1769-SD1 (1 GB), supports up to 2 GB
Communication Interface Dual-port EtherNet/IP (RJ45), 10/100 Mbps
EtherNet/IP Nodes Up to 16 nodes
Integrated Ports 1 × USB 2.0 (programming & firmware)
Expansion Capacity Up to 8 local 1769 Compact I/O modules
Power Supply Distance Rating 4 slots
Backplane Current 500 mA @ 5.1 V DC
Dimensions (W × H × D) 118 × 35 × 91 mm 
Operating Temperature 0–60 °C (32–140 °F)
Weight 0.17 kg 

NSE Model Considerations

  • SD Card Dependency: User program must reside on SD card for retention.

  • Load on Power-Up: Configure controller to "Load Image on Power-up" to restore application logic automatically.

  • Clock Sync: RTC is not maintained; synchronize via NTP server when Ethernet is available.

Common Technical Questions

What happens to the system clock during power loss?
The clock resets to default. Use WallClockLog instructions or NTP synchronization to restore correct time.

Is integrated motion supported?
Yes, the L31ER-NSE supports integrated motion on EtherNet/IP within the node count and processing limits of the L31 series (16 nodes).
Return policy

​We aim to provide reliable products and a smooth purchasing experience. If there is a problem with your order, please contact us and we will assist according to our Refund Policy.
Shipping

We provide international shipping options to meet different delivery requirements. Please review details regarding methods and timelines in our Shipping Policy.
Warranty

We provide a 12-month warranty for all products, subject to normal use and proper installation.

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