• Allen-Bradley 1756-L73
  • Allen-Bradley 1756-L73
  • Allen-Bradley 1756-L73
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Allen-Bradley 1756-L73 ControlLogix 8 MB Controller

Allen-Bradley 1756-L73 ControlLogix 8 MB Controller

Description

The Allen-Bradley 1756-L73 is a high-performance ControlLogix 5573 controller designed for demanding industrial automation applications. This controller provides 8 MB of user memory and 0.98 MB of I/O memory, supporting...

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Availability: Low stock: 7 left

SKU: 1756-L73
Vendor: Allen-Bradley
Category: PLC Controller
Related Series:

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  • Guarantee: 30-day return window for in-stock, factory-sealed products.
  • Condition: Items must be unopened, unused, and in original packaging.
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Authenticity & Warranty

  • Genuine Guarantee: We supply only 100% original, brand-new, and factory-sealed industrial automation parts.
  • Full Coverage: Every component is backed by a 12-month comprehensive warranty from the date of purchase.
  • Traceability: All products come with original factory documentation and accessories for full industrial compliance.

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  • Expert Assistance: Our technical team provides free consultation to help you verify compatibility for DCS and PLC systems.
  • Rare Part Sourcing: Specializing in obsolete and hard-to-find components from Allen-Bradley, Siemens, ABB, HIMA, and more.
  • Bulk Inquiries: Contact us at pambo@5gplc.com for volume pricing or customized project quotes.
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Description

The Allen-Bradley 1756-L73 is a high-performance ControlLogix 5573 controller designed for demanding industrial automation applications. This controller provides 8 MB of user memory and 0.98 MB of I/O memory, supporting complex control logic and large-scale I/O configurations. It features a built-in USB port for convenient programming and diagnostics, as well as a 4-character alphanumeric display for real-time status and fault reporting.

Features

  • 8 MB user memory capacity for complex control algorithms.
  • 0.98 MB dedicated I/O memory.
  • Integrated USB port for local communication and configuration.
  • 4-character alphanumeric display for status monitoring and diagnostic feedback.
  • Supports up to 500 controller connections.
  • High-density I/O support with a maximum of 128,000 I/O points.

Technical Specifications

Model 1756-L73
User Memory 8 MB
I/O Memory 0.98 MB
Current Draw @ 5.1 VDC 800 mA
Current Draw @ 1.2 VDC 5 mA
Power Dissipation 2.5 Watts
Isolation Voltage 30 V Continuous
Max I/O 128,000
Max Analog I/O 4,000

Installation Guidelines

  • Ensure the ControlLogix chassis is properly grounded before installing the controller module.
  • The 1756-L73 is designed for installation into a standard ControlLogix chassis; ensure the module is fully seated and the locking tab is engaged.
  • Always remove power from the chassis before inserting or removing the controller to prevent electrical damage or unexpected system behavior.
  • Maintain adequate clearance around the chassis to ensure proper airflow and cooling, as the module dissipates 2.5 Watts of power.
  • Observe ESD precautions when handling the module to prevent damage to internal electronic components.

FAQ

What is the primary function of the 1756-L73 controller?
The 1756-L73 is a central processing unit for the ControlLogix platform, responsible for executing user-defined control programs, managing I/O data, and coordinating communication across industrial networks.

Does this controller support remote communication?
Yes, the 1756-L73 supports various communication modules within the ControlLogix chassis to facilitate Ethernet/IP, ControlNet, and DeviceNet connectivity.