855E-LL24W Allen‑Bradley

Description

Product Name : 855E-LL24W Allen‑Bradley Input module

Product details:

Allen-Bradley offers a scalable portfolio of PLCs and Programmable Automation Controllers (PACs) designed to handle everything from micro-component stand-alone machines to massive, enterprise-level process automation.

Core Product Families

• ControlLogix® (5580 Series): The flagship PAC designed for large, high-performance, and multi-discipline systems (motion, process, safety, and discrete control).
• CompactLogix™ (5380 & 5480 Series): Ideals for mid-sized applications. They offer the same programming environment (Studio 5000) as ControlLogix but in a smaller, cost-effective form factor.
• Micro800® Series (Micro820, 850, 870): Customized for standalone, micro-scale machines. Economical and programmed using Connected Components Workbench (CCW) software.
• SLC™ 500 & PLC-5®: Legacy systems. While many are phased out or in end-of-life status, thousands are still active in older industrial plants worldwide.

2. Technical Parameters (General Specifications)

While parameters vary wildly between a Micro820 and a ControlLogix 5580, the standard technical benchmarks for modern Allen-Bradley controllers include:

3. Product Advantages

• Integrated Architecture: Allen-Bradley’s premier integration allows the PLC, HMI (FactoryTalk View), Variable Frequency Drives (PowerFlex), and Motion Control (Kinetix) to seamlessly share the same tag database, dramatically reducing engineering time.
• EtherNet/IP Standard: Instead of utilizing a closed, proprietary network, modern AB PLCs rely heavily on EtherNet/IP (unmodified Ethernet), ensuring easy integration with standard IT networks and commercial switches.
• Robust Security (CIP Security): Modern Logix controllers include built-in firmware encryption, digitally signed firmware, and role-based access control to protect intellectual property and mitigate cyber threats.
• Hot-Swapping (RIUP): Larger systems support Removal and Insertion Under Power (RIUP), allowing maintenance teams to replace faulty I/O modules without shutting down the entire production line.
• Strong Global Support: Rockwell Automation has an massive global ecosystem of distributors, system integrators, and field engineers, making spare parts and technical expertise easy to find.

4. Precautions & Best Practices

When deploying and maintaining Allen-Bradley PLCs, consider the following technical constraints:

• Firmware Compatibility: Ensure that your controller’s firmware major revision exactly matches the version of Studio 5000 software you are using. A minor mismatch can prevent you from going online with the controller.
• Battery and Memory Backup: While modern Logix controllers use non-volatile energy storage modules (no batteries required), older models (like ControlLogix 5570 or SLC 500) rely on lithium batteries. Failure to replace them can result in total program loss during a power outage.
• Environmental Protection: Standard PLCs are open-type equipment. They must be installed in a properly rated enclosure (NEMA 4/12 or IP54/65) to protect against dust, moisture, and conductive contaminants.
• Network Segmentation: Because EtherNet/IP relies on standard Ethernet multicast traffic, proper network segmentation (VLANs) and IGMP snooping switches must be configured to prevent the PLC from being flooded with unnecessary data traffic.

5. Industrial Applications

Allen-Bradley PLCs are highly versatile and dominate several key sectors:

• Automotive Manufacturing: Extensively used in assembly lines, robotic cell coordination, welding systems, and stamping presses due to their high-speed motion synchronization capabilities.
• Food & Beverage: Used to automate blending, batching, packaging, and bottling processes, ensuring strict compliance with safety regulations and precise recipe management.
• Oil & Gas / Water Treatment: ControlLogix PACs manage complex process loops, pumping stations, pipeline monitoring, and water filtration plants over vast geographic distances.
• Material Handling & Logistics: Deployed in massive distribution centers to control high-speed sorters, conveyors, automated storage and retrieval systems (AS/RS), and baggage handling systems at airports.

Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!

We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！

Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service

The following are other related models. If you can’t find the product you need, please contact us. Thank you

JUSTWELL PTE. LTD. sells new and discontinued products, and purchases such specialty products through independent channels. JUSTWELL PTE. LTD. is not an authorized distributor, distributor, or representative of the featured products on this website. All product names/images, trademarks, brands, and logos used on this website are the property of their respective owners. Product descriptions, descriptions, or sales with these name images, trademarks, brands, and logos are for identification purposes only and do not imply any association or authorization with any rights holders.
This article is from the official website of JUSTWELL PTE. LTD. If reprinted, please attach this link:https://www.justwellcenter.com/

All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders.