Fast Quote About Us FAQ Contact Us
  • Please try to be as accurate as possible with your search.
  • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
  • We can't find any results for “”.
    SEE MORE
      SEE PRODUCTS IN SEARCH PAGE ()
      Fast Quote About Us FAQ Contact Us
      Get Repair Quote
      Name
      Company *
      Phone *
      Email *
      Address
      City
      State / Province / Region
      Zipcode
      Country
      Quantity *
      Part Number *
      Manufacturer
      Preferred Condition
      Additional Information
      Cancel

      1756-L81E

      Controller module

      Product Information

      Product Describe

      controller is one of the standard

      ControlLogix series industrial controllers

      It has 1 USB port and an embedded

      Ethernet port.

      • Manufacturer:
        Allen-Bradley
      • Product Category:
        PLC System
      • Estimated shipping dimensions:
        20.3 x 15.6 x 14.5 cm
      • Weight:
        1.23 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Isolation Voltage:
        50 Volts Continuous
      • Power Dissipation:
        6.2 Watts
      • Current Draw (5.1 Volts):
        1.20 Miliamperes
      • Current Draw (1.2 Volts DC):
        5.0 Miliamperes
      • User Memory:
        3 MB
      • I-O Memory:
        N/A
      • Product Line:
        ControlLogix
      • Product Type:
        Controller module
      • Stock:
        20
      By purchasing this item, you agree to the Terms & Conditions
      Moore Automated is NOT an authorized distributor of Allen-Bradley
      right background
      1-year warranty

      All our products come with a 1-year warranty for your peace of mind.

      Service means taking a customer problem and making it your own challenge. Years of experience and listening skills enable us to think and act quickly and accordingly. You have a problem? – We have the solution!
      Moore Automated is not an authorized distributor, reseller or representative of the products featured on this website.
      All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.
      Learn More Policy
      Manuals
      • Order Online:
        We have been working hard to update our inventory.

        If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show “Ask”. Please create an online quote or contact us by phone, fax or email to check availability.
      • Order by:
        You can also contact us by phone, fax or email to order. We are here to help you!
      • E-mail:
        We need the following information to process your order quickly and accurately: Your complete ship and receipt information
      • Delivery:
        How do you want to ship? Shipping information
      • Payment:
        How will you pay? Payment procedure
      Learn More Policy
      Quantity*
      Mobile*
      Company
      E-mail*
      Content*
      Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)
      Get a Quote

      Quick Search

      • Part or Model Number

        • Please try to be as accurate as possible with your search.
        • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
        • We can't find any results for “”.
          SEE MORE
            SEE PRODUCTS IN SEARCH PAGE ()

          • Filter by Manufacturer

          • Filter by Category

          Featured Manufacturers

          FAQ

          • What is the architectural significance of the 1756-L81E within the ControlLogix automation platform?
            The 1756-L81E serves as a high-performance ControlLogix 5580 series CPU, embodying an integrated multi-core processor architecture designed to facilitate deterministic, real-time control and extensive data handling across complex industrial processes. Its advanced computational throughput enables seamless integration of discrete, analog, motion, and safety control within a unified control environment.
          • What are the principal processing capabilities and memory resources available on the 1756-L81E controller?
            The 1756-L81E is equipped with a 1.2 GHz ARM Cortex-A9 quad-core processor architecture, complemented by 2 GB of user memory and a non-volatile memory block that supports application retention and rapid startup. This substantial memory facilitates complex program execution, enhanced data logging, and efficient handling of extensive I/O datasets.
          • What redundancy and fault-tolerance mechanisms are implemented in the 1756-L81E controller?
            This model supports controller redundancy through ControlLogix’s Redundant Ethernet module architecture, allowing for seamless switchover in failover scenarios. The controller also includes watchdog timers, error detection and correction algorithms, and comprehensive diagnostic reporting to ensure operational continuity and minimize downtime.
          • How does the 1756-L81E integrate safety functions within its control architecture?
            The 1756-L81E supports embedded safety control applications via integration with GuardLogix safety modules and leverages Safety over EtherNet/IP (SoEIP) communication. This enables real-time monitoring and control of safety-critical functions in compliance with SIL 3 / PLe safety standards.
          • What programming environment and languages are compatible with the 1756-L81E?
            Programming for the 1756-L81E is conducted via Studio 5000 Logix Designer, supporting IEC 61131-3 languages including Ladder Logic (LD), Structured Text (ST), Function Block Diagram (FBD), Sequential Function Chart (SFC), and Continuous Function Chart (CFC). The controller also supports Add-On Instructions and user-defined data types to facilitate modular programming.
          • What security features are incorporated within the 1756-L81E to mitigate cyber threats in industrial networks?
            The 1756-L81E incorporates user authentication, role-based access control (RBAC), and supports secure Ethernet protocols such as HTTPS, SSH, and TLS. Its firmware supports regular security patches and the integration of Firewalls and VPNs, aligning with Rockwell Automation’s Defense-in-Depth cybersecurity framework.
          • What are the expansion capabilities and module compatibility for the 1756-L81E within a ControlLogix chassis?
            The 1756-L81E supports up to 63 ControlLogix modules in a single chassis, including analog, digital, motion, safety, and communication modules. It fully interoperates with Logix 5580 series I/O and third-party CIP-compliant devices, enabling flexible and scalable system architectures.

          • 20 Years of Excellence in Industrial Automation Supply

            For over 20 years, Moore Automated has been a trusted leader in the industrial automation supply industry. As a dependable automation parts supplier, we’ve expanded our product lines, grown a global customer base, and earned repeated recognition as a Most Trusted and Reliable Supplier Award.

            Our long-standing success reflects our commitment to quality, reliability, and customer satisfaction. Whether you’re sourcing hard-to-find components or need expert repairs, Moore Automated stands out among industrial automation parts suppliers for our experience, service, and unbeatable 1-year warranty.

          • Unbeatable 1-Year Warranty on Industrial Automation Parts

            When it comes to industrial automation supply, Moore Automated leads the way with exceptional quality and reliability. All of our PLC, DCS spare parts and repair services are backed by an unbeatable 1-year warranty, giving you the confidence you deserve when choosing an automation parts supplier.

            As one of the most trusted industrial automation parts suppliers, we understand the importance of dependable performance. That’s why we go beyond industry standards—offering a 1-year warranty that outperforms typical coverage. Whether you’re replacing obsolete components or maintaining critical systems, Moore Automated provides the high-quality parts and expert repairs you need.


            Choose Moore Automated

          • Emergency Shipping Available for Industrial Automation Parts

            Downtime can cost you time and money—Moore Automated is here to help. As a reliable automation parts supplier, we offer emergency shipping to get critical components to you fast and minimize disruptions.

            With two decades of experience in industrial automation supply, we understand how vital speed and reliability are. That’s why we’re proud to be one of the few industrial automation parts suppliers offering urgent shipping options to keep your operations running smoothly.


            Need it now? Count on Moore Automated for fast, dependable emergency delivery backed by our unbeatable 1-year warranty.

          Related Products

          Top Allen-Bradley Products

          Customers Also Viewed

          Browsing history

          Differentiated sales services

          background
          01

          Discontinued Systems

          We are the leading parts supplier for maintaining systems that have been discontinued by the manufacturer
          02

          Same-Day Shipping

          1 million+ products shipped same-day, millions more available with free expedited processing
          03

          Speed

          Time is money. This is especially true in your industry, and we know it. You can count on us to deliver spare parts quickly for systems from all manufacturers.
          04

          Spare parts warehouse

          With 50,000 square meters of storage space, we have a large selection of high-quality control system parts available to you 24/7. Availability is critical to both you and us.
          05

          Price Stability

          Being open to our customers is especially important to us. That's why we offer you automation components at fair and stable prices.
          Contact Background Background

          Need More Help?

          miya@mvme.cn
          +86 180 2077 6792
          Contact