Allen-Bradley 1756-L73 ControlLogix 8 MB Controller

Availability: 2 left in stock

DescriptionThe Allen-Bradley 1756-L73 is a high-performance ControlLogix 5573 controller designed for demanding industrial automation applications. This controller provides 8 MB...

SKU: 1756-L73

Manufacturer: Allen-Bradley
Product No.: 1756-L73
Product Type: PLC Controller
Product Origin: USA
Payment:T/T, Western Union
Weight: 250g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

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.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.