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1756-L81E

1756-L81E ControlLogix 5580 Processor | Allen-Bradley 3 MB PAC

In stock (23 units), ready to be shipped

  • Manufacturer: Allen-Bradley

  • Product No.: 1756-L81E

  • Product Type: Controller Processor

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 500g

  • Shipping port: Xiamen

  • Warranty: 12 months

30-Day Return Policy · 12-Month Warranty
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  • 24/7 Support
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Description

Allen-Bradley, a Rockwell Automation brand, makes the 1756-L81E for compact control tasks. This ControlLogix 5580 processor provides 3.00 MB user memory, 128,000 digital I/O, and 4,000 analog I/O.

Highlights of 1756-L81E

  • Part of ControlLogix 5580 series; 32 tasks, 1,000 programs per task.
  • 1 USB 2.0 port: 12.00 Mbps; 1 Gigabit Ethernet: 10/100/1000 Mbps, auto‑negotiation.
  • Supports up to 60 EtherNet/IP nodes; programs in Studio 5000; energy‑storage RAM backup.

Core Specs – Brand: Allen-Bradley | Model: 1756-L81E

  • User memory: 3.00 MB
  • Max digital I/O: 128,000; Max analog I/O: 4,000
  • Ethernet: 10/100/1000 Mbps; USB: 12.00 Mbps
  • Ethernet nodes: 60; Power: 6.20 W; Thermal: 21.20 BTU/hr
  • Current: 1.20 A at 5.10 V DC; 5.00 mA at 1.20 V DC
  • Isolation: 50.00 V continuous; 
  • Temp: 0.00–60.00 °C (32.00–140.00 °F); Humidity: 5–95%
  • Vibration: 2.00 g at 10–500 Hz; Shock: 30.00 g; Certs: UL, CE, IECx.

Installation Tips

  • Install in 1756‑A4/A7/A10/A13/A17 Series B or C chassis; single slot width.
  • Use standard or redundant power supplies; connect USB for programming, Ethernet for I/O.

Package Contents

  • One 1756-L81E controller module; ships via FedEx, UPS, DHL.

FAQ

  • Q: Memory size of 1756-L81E?
    A: 3.00 MB user memory.
  • Q: Max EtherNet/IP devices supported?
    A: 60 nodes.
  • Q: Does it need a battery for RAM?
    A: No, uses energy‑storage solution, no battery required.
🏷️ Tags: Controller Processor

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  • Ensure compatibility with your current machinery or control systems.
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  • Review delivery options, lead times, and shipping requirements.
  • Follow manufacturer instructions and best practices during installation.

In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.

Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.

For more details, please review our Shipping & Return Policy.

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