Is the Allen-Bradley 1756-L71 new or used?

We offer the 1756-L71 in multiple conditions, from unused surplus to professionally reconditioned units. Every option is sourced and verified independently and covered by our 2-year replacement warranty.

What are the key ratings of the 1756-L71?

The 1756-L71 draws 800 milliamps.

What is the Allen-Bradley 1756-L71?

The 1756-L71 is an Allen-Bradley ControlLogix 1756 Processor Module.

UPC	10612598876010
Brand	Allen-Bradley
Series	ControlLogix
UNSPSC	32151705
Enclosure	None
I-O Memory	0.98 MB
Maximum I-O	128,000
Module Type	Processor Module
User Memory	2 MB
Manufacturer	Rockwell Automation
Communication	DeviceNet, ControlNet, EtherNet/IP, Remote I/O
Isolation Voltage	30 Volts Continuous
Power Dissipation	2.5 Watts
Maximum Analog I-O	4,000
Maximum Digital I-O	128,000
Thermal Dissipation	8.5 BTU per hour
Part Number/Catalog No.	1756-L71
Current Draw (5.1 Volts)	800 milliamps
Current Draw (1.2 Volts DC)	5 milliamps

Allen-Bradley

1756-L71

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PLCs ControlLogix 1756

The Allen-Bradley 1756-L71 by Rockwell Automation is a ControlLogix Processor Module with 2 MB user memory, supporting up to 128,000 digital and 4,000 analog I/O. It offers robust communication options including DeviceNet, ControlNet, and EtherNet/IP, and features low power consumption with just 2.5 Watts dissipation.

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Overview of Allen-Bradley 1756-L71

The Allen-Bradley 1756-L71 is a programmable automation controller (PAC) part of the ControlLogix series. This controller provides an innovative, flexible, and scalable solution for a wide range of control applications, including advanced process control, discrete control, safety control, and drive control. The 1756-L71 model is known for its high performance and reliability, catering to complex automation systems that require intricate control and real-time decision-making capabilities.

Key Features

The Allen-Bradley 1756-L71 features a 2 MB memory, allowing for a substantial amount of control and data management tasks. It supports up to 256 Logix-based I/O modules, which can be either analog or digital, giving it the adaptability to be used in various industrial settings. The controller also benefits from a fast task execution time and supports multiple communication and network protocols such as ControlNet, EtherNet/IP, and DeviceNet, facilitating integration with a broad spectrum of devices and network configurations.

Performance and Processing

With superior processing capabilities, the 1756-L71 facilitates high-speed I/O processing and swift task execution, which significantly enhances control system performance. This is particularly advantageous for applications requiring rapid response times and complex control algorithms. The controller can efficiently manage multiple tasks simultaneously due to its ability to prioritize tasks based on urgency and importance, thereby improving system throughput and performance.

Compatibility and Expansion

The Allen-Bradley 1756-L71 controller is compatible with a wide range of Allen-Bradley I/O modules and chassis configurations, allowing for easy system expansion and customization to meet the evolving demands of the industry. It is also compatible with Rockwell Automation's Integrated Architecture system, providing seamless integration with other Allen-Bradley products, software, and factory automation solutions. This compatibility ensures that users can easily upgrade or modify their systems as needed.

Safety and Security

Safety and security are critical factors in modern control systems. The 1756-L71 incorporates advanced security features such as role-based access control, audit logging, and network security, which help protect against unauthorized access and potential cyber threats. Additionally, the controller can be paired with specialized I/O modules to implement safety-critical controls, ensuring compliance with international safety standards for protecting equipment and personnel in hazardous environments.