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Allen-Bradley 1756-L81ES

Allen-Bradley 1756-L81ES Specification

Thickness
Standard module size

Connectivity Type
Ethernet, USB, Backplane

Protection Class
Class I

Current Rating
1000 mA backplane

Rated Operation Voltage
24V DC

Protection Level
C-Tick, CE, UL certified

Features
Integrated safety, energy storage, dual redundancy support, enhanced diagnostics

Rated Current
2A

Way
Modular

Panel Type
Chassis-mount

Cover Material
Plastic

Rated Insulation Voltage
250V AC

Cooling System
Air-cooled

Control System
Logix 5000

Operating Voltage
19.2-28.8V DC

Components
Processor Module

Base Material
Plastic

Product Type
Programmable Automation Controller (ControlLogix L81ES) Safety Processor

Material
Plastic, metal components

Surface Finish
Textured

Standard
IEC 61131-2

Surface Color
Black/Gray

Rated Voltage
24V DC

Frequency (MHz)
50/60 Hz

Maximum Output Current
2.5A

Dimension (L*W*H)
145 x 35 x 140 mm

Application
Industrial Automation, Safety PLC

IP Rating
IP20

Display Type
LED indicators

Communication Ports
1 x USB, 1 x Ethernet, Backplane

Expansion
Supports up to 32 I/O modules per chassis

Weight
Approx. 0.35 kg

Operating Temperature
0 to 60C

Processor
ControlLogix 5580 series, Safety-certified

Storage Temperature
-40 to 85C

Relative Humidity
5% to 95% non-condensing

Firmware
V30 or later

Mounting Type
Chassis Mount

Safety Features
SIL 3, PLe Cat 4 certified

Memory
10 MB user memory, 40 MB safety memory

Allen-Bradley 1756-L81ES Trade Information

Minimum Order Quantity
1 Unit

Delivery Time
2 Week

About Allen-Bradley 1756-L81ES

1756-L81ES

Guardlogix 5580 Controller

Key Features & Specifications:

Controller Type: GuardLogix 5580 Safety Controller.
Memory: 3 MB Standard / 1.5 MB Safety Memory.
Communication: Embedded USB 2.0 port and 1 Gbps EtherNet/IP port.
Performance: Supports up to 128,000 discrete I/O and 4000 analog I/O.

Memory Card: Ships with a 2GB Secure Digital Card (1784-SD2).
Environment: Uses Studio 5000 Automation Engineering & Design Environment. [1, 2, 3, 4, 5]

Compatibility:

Chassis: Compatible with standard and conformal coated ControlLogix chassis, including 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17 (Series B/C).
Power Supplies: Works with 1756-PA50, 1756-PA72, 1756-PA75, 1756-PB50, 1756-PB72, 1756-PB75, 1756-PH75, and 1756-PC75.
Redundancy: Supports controller redundancy for high availability. [1]

This controller is designed for high-performance applications demanding both control and safety functionality in a single module. [1]

Integrated Safety and Performance

Designed for demanding safety PLC environments, the 1756-L81ES offers SIL 3 and PLe Cat 4 certifications, ensuring optimum protection for critical industrial systems. Enhanced with dual redundancy support and energy storage, it delivers robust safety and high performance in one advanced processor module.

Flexible Connectivity and Expansion

With support for Ethernet, USB, and backplane communications, the 1756-L81ES is adaptable to various control system architectures. Its modular design allows expansion up to 32 I/O modules per chassis, providing scalability for evolving automation requirements.

Advanced Diagnostics and Usability

LED indicators and enhanced diagnostic capabilities simplify troubleshooting and maintenance. The processor is equipped with user-friendly features including air-cooled operation and an intuitive modular form factor, making installation and usage efficient for system integrators and operators.

FAQ's of Allen-Bradley 1756-L81ES:

Q: How is the Allen-Bradley 1756-L81ES processor module used in industrial automation?

A: The 1756-L81ES is utilized as the central controller within ControlLogix 5000 systems, managing logic execution, I/O processing, and integrated safety functions. It supports complex automation operations in environments that require both control and safety assurance, such as manufacturing and process industries.

Q: What safety features does the 1756-L81ES offer for critical applications?

A: This processor is safety-certified with SIL 3 and PLe Cat 4 (IEC 61131-2), ensuring it meets rigorous safety integrity and performance standards. It incorporates dedicated safety memory (40 MB), integrated safety functions, and redundancy support, making it ideal for applications demanding high-reliability fail-safe operations.

Q: When should I choose the 1756-L81ES for my control system?

A: Select the 1756-L81ES when your automation project requires advanced safety compliance, high memory capacity for user and safety tasks, robust diagnostics, and flexible communication interfaces. It's optimal for medium to large-scale industrial processes where safety and reliability are paramount.

Q: Where can the Allen-Bradley 1756-L81ES be installed?

A: The module is designed for chassis-mount installation within control cabinets or panels typical of industrial environments. It is suitable for locations needing reliable PLC performance under varying temperature and humidity conditions, supporting application-specific needs in manufacturing plants and process facilities.

Q: What is the process for expanding the I/O capabilities of the 1756-L81ES?

A: To expand I/O, simply install additional modules into the chassis alongside the 1756-L81ES processor. The system supports up to 32 I/O modules per chassis, providing scalable input/output functionality, all managed via the Logix 5000 control system software.

Q: How do the enhanced diagnostics benefit plant operations?

A: The integrated LED indicators and advanced diagnostic features enable rapid identification of faults or abnormal conditions. This minimizes downtime, accelerates maintenance, and improves overall system reliability-essential for maximizing plant productivity and safety.

Q: What are the key connectivity options available on the 1756-L81ES?

A: The module includes one Ethernet port, one USB port, and a backplane interface, facilitating seamless communication with supervisory systems, remote I/O, and programming devices. This versatility supports diverse automation architectures and easy system integration.