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1756-L82ES

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Allen-Bradley 1756-L82ES is a higher-capacity GuardLogix 5580 controller for networked standard and safety applications.
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Technical specifications for 1756-L82ES

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1756-L82ES
  • Product Family:
    ControlLogix
  • Product Type:
    GuardLogix 5580 Safety Controller
  • Stock:
    1
  • Product Series:
    GuardLogix 5580
  • Standard User Memory:
    5 MB
  • Safety Memory:
    2.5 MB
  • EtherNet/IP Devices:
    175
  • Integrated Ethernet:
    1 x 1 Gb EtherNet/IP port
  • Local Programming Port:
    1 x USB 2.0
  • Nonvolatile Storage:
    4 GB Secure Digital card (1784-SD4) preinstalled
  • Safety Task Language:
    Ladder diagram
  • Power Dissipation:
    6.2 W
  • Operating Temperature:
    0 to 60 °C in Series C chassis; 0 to 50 °C in Series B chassis
  • Weight:
    0.394 kg
  • Estimated shipping dimensions:
    3.46x14.55x14.01cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals OPC UA Access Memory Split Safety Partner Product Applications

Features:

  • Safety capacity: 5 MB standard memory and 2.5 MB safety memory remain separate allocations
  • Network scale: the model supports as many as 175 EtherNet/IP nodes
  • Data integration: version 36 or later supports a 900-node OPC UA model
1756-L82ES targets GuardLogix systems that need more standard logic, safety content, and network scope than the compact safety catalog.

1756-L82ES combines control and information functions, but the safety task, signatures, memory, and validation state remain independently governed.

1756-L82ES selection should connect the integrity target, partner decision, redundancy intent, software baseline, and commissioning evidence before hardware is ordered.

Apter Power can support model verification, safety-architecture review, official documents, and quotation coordination for 1756-L82ES.
Allen-Bradley 1756-L82ES GuardLogix 5580 Safety Controller Manuals, Datasheets, Links Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Software prerequisite: Logix Designer version 36 or later enables the published OPC UA function
  • Model allowance: up to 900 OPC UA nodes supports a substantial diagnostic information model
  • Deployment boundary: client access must not replace the validated safety function or its required tests
  • Standard pool: 5 MB serves the standard Logix application
  • Safety pool: 2.5 MB is reserved for governed safety content
  • Change control: compiled usage and margin must be reviewed independently for both allocations
  • Primary path: the controller supports safety applications through SIL 2 and Category 3/PLd
  • Partner path: a qualified 1756-L8SP is required for SIL 3 and Category 4/PLe
  • Validation effect: the partner, signatures, I/O paths, and fault reactions form one approval scope
  • Larger safety projects: integrated standard and safety control using separately governed memory
  • Networked machinery: GuardLogix architectures with a higher EtherNet/IP device population
  • Diagnostic integration: qualified OPC UA exposure of controller data without replacing safety validation
Description
For larger integrated-safety projects, Allen-Bradley 1756-L82ES combines 5 MB of standard user memory with a separately governed 2.5 MB safety allocation. The one-slot GuardLogix 5580 controller executes standard Logix tasks and a ladder-based safety task on the ControlLogix platform.

Communication scope distinguishes 1756-L82ES from the smaller safety catalog. Rockwell Automation lists 175 EtherNet/IP nodes for this model and, from Logix Designer version 36 onward, a 900-node OPC UA capacity for exposing qualified controller information to compatible clients.

Availability planning for 1756-L82ES has a critical safety boundary because the qualified redundant architecture and the safety-partner path are not interchangeable. The target integrity level, firmware baseline, partner requirement, and high-availability objective must therefore be resolved before the hardware topology is frozen.
Revisions

Revision Part #

Also known as

1756-L82ES Series B
1756-L82ES/B, Series B
Alternative Names
Allen-Bradley GuardLogix 5580 L82ES Rockwell Automation 1756 L82ES Safety CPU GuardLogix 5580 5 MB Safety Controller
Technical notes
Do not approve redundancy for 1756-L82ES until the required safety integrity is fixed. GuardLogix redundancy is supported from version 37, but the redundant configuration does not support the 1756-L8SP safety partner; a SIL 3 or Category 4/PLe requirement therefore needs an architecture decision, not a routine controller-pair conversion.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What evidence should be collected when a redundant 1756-L82ES pair will not synchronize?
Compare controller firmware, chassis and module identity, project and safety signatures, redundancy status, communication paths, and recent changes on both partners before attempting another synchronization.
How should standard and safety growth be evaluated on 1756-L82ES?
Use the compiled project report to review the two allocations independently. Spare standard memory cannot be treated as safety capacity, and each pool needs its own expansion margin.
What should be tested when an OPC UA client is connected to 1756-L82ES?
Confirm the version 36-or-later prerequisite, certificates, trust, namespace, and subscription demand, then verify that controller diagnostics and the validated safety function remain acceptable under load.
What evidence is required after a safety-partner replacement beside 1756-L82ES?
Match the partner catalog and series, restore the approved configuration, verify signatures and status, test I/O paths and fault reactions, and complete the site's controlled safety-validation record.
How does high cabinet temperature affect placement around 1756-L82ES?
Apply the chassis-series temperature boundary and, above 55 °C for SIL 2/PLd use, keep modules dissipating more than 6.2 W from being adjacent as specified.
What security preparation should precede CIP Security enforcement on 1756-L82ES?
Use a supported version 34.00.01-or-later baseline, manage certificates and trusted endpoints, synchronize time, document recovery access, and repeat required safety and communication acceptance tests.