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Allen-Bradley 1747-L552/C SLC 5/05 PLC Controller

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Allen-Bradley 1747-L552/C

by Allen-Bradley

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OverviewThe Allen-Bradley 1747-L552/C is a high-performance SLC 5/05 programmable logic controller (PLC) designed for demanding industrial automation and advanced process control. This controller seamlessly integrates into complex systems, providing exceptional reliability, speed, and extensive I/O support. With 32K user memory, advanced Ethernet and RS-232 communication, and the capacity to manage up to 4096 input and output points, the 1747-L552/C offers a powerful and flexible solution for various industrial applications. Benefit from real-time data exchange, efficient remote monitoring, and superior control system management, all supported by auto-negotiating Ethernet speeds up to 100 Mbps and support for 48 simultaneous connections.Key Features 32K User Memory Generous memory allocation provides 28K words for program and data storage, plus an additional 4K words for data-only applications, ensuring ample capacity for intricate control algorithms. Advanced Ethernet & RS-232 Communication Features auto-negotiating Ethernet connectivity up to 100 Mbps, supporting HTTP server functionality and remote access, alongside configurable RS-232 for DH-485 networks. High I/O Capacity Supports an impressive 4096 input and output points, making it an excellent choice for large-scale, complex automation systems requiring extensive connectivity. Fast Processing Speed Boasts a rapid program scan time of 0.9 ms per K-word and an I/O scan time of 0.225 ms, ensuring quick responses and efficient operation in time-critical applications. Extensible Local I/O Support Capable of supporting up to 480 local analog I/O points and enabling the use of up to 3 local I/O chassis for enhanced system flexibility and expansion. Diverse Backup Memory Options Equipped with both non-volatile Flash Memory and standard battery-backed RAM for reliable program and data retention, safeguarding against power fluctuations. Robust Certifications UL, CE, and RoHS certified, ensuring compliance with global safety, health, and environmental standards for industrial equipment. Technical Specifications Model: 1747-L552/C Series: SLC 5/05 User Memory: 32K Total (28K Program/Data, 4K Data Only) Total Input/Output Capacity: 4096 In + 4096 Out (Absolute Max) Analog I/O Capacity: Up to 480 Points (Local) Number of Local I/O Chassis: 3 Number of I/O Module Slots (Local): 30 Communication Ports: Ethernet & RS-232 Ethernet Speed: 10/100 Mbps Auto-Negotiation Supported Ethernet Connections: 48 Simultaneous Connections Backup Memory: Flash / Battery-Backed RAM Mounting: Chassis-Based Certifications: UL, CE, RoHS Applications Industrial Automation & Process Control Perfectly suited for managing large-scale I/O systems and critical processes in diverse industrial environments. Manufacturing & Production Lines Facilitates real-time monitoring and control, optimizing efficiency and throughput in manufacturing operations. SCADA & Remote Monitoring Offers fast Ethernet connectivity, enabling seamless remote access and supervision of distributed control systems. Power Generation & Distribution Provides reliable and precise automation for critical infrastructure in the energy sector. Material Handling & Packaging Systems Ensures highly efficient and synchronized machine control for complex material flow and packaging operations. Water/Wastewater Treatment Delivers robust control and monitoring capabilities essential for demanding utility applications. Why ChooseThe Allen-Bradley 1747-L552/C excels with exceptionally fast processing speeds, ensuring minimal latency and maximum operational efficiency for critical applications. Its advanced Ethernet networking supports up to 48 simultaneous connections and 100 Mbps speeds, providing unparalleled connectivity.Order NowExperience the superior performance and reliability of the Allen-Bradley 1747-L552/C by ordering today. Enhance your industrial automation systems with this advanced PLC.FAQWhat is the memory capacity of the 1747-L552/C?The 1747-L552/C features 32K words of user memory, with 28K dedicated to program and data and an additional 4K for data-only applications.What communication options does this PLC offer?It includes advanced Ethernet and RS-232 communication ports, supporting auto-negotiating Ethernet at up to 100 Mbps and RS-232 for DH-485 networks.How many I/O points can the 1747-L552/C handle?This controller supports a maximum of 4096 input and 4096 output points, along with up to 480 local analog I/O points.

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PRODUCT DETAILS

Allen-Bradley 1747-L552/C

Overview

This is a genuine Allen-Bradley component from the SLC 500 Platform (Legacy) family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem
  • Engineered to integrate inside SLC 500 Platform (Legacy) installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes for the SLC 500 Platform (Legacy) family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model: 1747-L552/C
  • Series: SLC 5/05
  • User Memory: 32K Total (28K Program/Data, 4K Data Only)
  • Total Input/Output Capacity: 4096 In + 4096 Out (Absolute Max)
  • Analog I/O Capacity: Up to 480 Points (Local)
  • Number of Local I/O Chassis: 3
  • Number of I/O Module Slots (Local): 30
  • Communication Ports: Ethernet & RS-232
  • Ethernet Speed: 10/100 Mbps Auto-Negotiation
  • Supported Ethernet Connections: 48 Simultaneous Connections
  • Backup Memory: Flash / Battery-Backed RAM
  • Mounting: Chassis-Based
  • Certifications: UL, CE, RoHS

Applications

  • Industrial Automation & Process Control

    Perfectly suited for managing large-scale I/O systems and critical processes in diverse industrial environments.

  • Manufacturing & Production Lines

    Facilitates real-time monitoring and control, optimizing efficiency and throughput in manufacturing operations.

  • SCADA & Remote Monitoring

    Offers fast Ethernet connectivity, enabling seamless remote access and supervision of distributed control systems.

  • Power Generation & Distribution

    Provides reliable and precise automation for critical infrastructure in the energy sector.

  • Material Handling & Packaging Systems

    Ensures highly efficient and synchronized machine control for complex material flow and packaging operations.

  • Water/Wastewater Treatment

    Delivers robust control and monitoring capabilities essential for demanding utility applications.

Why Choose the 1747-L552/C?

The Allen-Bradley 1747-L552/C excels with exceptionally fast processing speeds, ensuring minimal latency and maximum operational efficiency for critical applications. Its advanced Ethernet networking supports up to 48 simultaneous connections and 100 Mbps speeds, providing unparalleled connectivity.

Availability & Shipping

  • In stock: 1747-L552/C ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 1747-L552/C ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The 1747-L552/C features 32K words of user memory, with 28K dedicated to program and data and an additional 4K for data-only applications.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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Independent Supplier Notice

PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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