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Home > Industrial Equipment & Components > Other Equipment & Components > Allen-Bradley 1747-L20N is a SLC 500 Fixed Controller

Allen-Bradley 1747-L20N is a SLC 500 Fixed Controller

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Product Spotlights

The Allen-Bradley 1747-L20N is a compact, cost-effective SLC 500 Fixed Controller with 12 inputs and 8 outputs. Its integrated design simplifies installation and reduces costs for small-scale automation. Featuring robust processing, a built-in RS-232 port, and high noise immunity, it ensures reliable performance in industrial environments. Ideal for machine control and material handling applications.

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

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Brand:

Allen-Bradley

Model:

1747-L20N

Controller Type:

SLC 500 Fixed Controller

Contact Supplier Request Quote Chat Now

Rossonix Co.,limited

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Brand Allen-Bradley

Model 1747-L20N

Controller Type SLC 500 Fixed Controller

I/O Configuration Fixed, 12 Inputs / 8 Outputs

Processor Speed 1.5 KHz to 1 MHz

Memory 1K Words

Communication Ports RS-232/DF1

Power Supply Requirement 24V DC

Application Industrial Automation Control

As a trusted supplier in the industrial automation sector, Rossonix Co., Limited is proud to offer the Allen-Bradley 1747-L20N SLC 500 Fixed Controller. With over a decade of experience since our establishment in 2011 and a strong presence in key global markets, we understand the critical need for reliable and robust control solutions. This controller represents a cornerstone of compact automation, designed to deliver precise control for a wide array of applications. Its proven architecture ensures seamless integration and dependable performance, making it an ideal choice for businesses seeking to enhance their operational efficiency with trusted technology.

The Allen-Bradley 1747-L20N is engineered for simplicity and durability in demanding industrial environments. It combines a fixed I/O structure with the processing power needed for basic to intermediate control tasks, offering a cost-effective entry point into the Rockwell Automation ecosystem.

Core Features & Technical Advantages:

Compact, Integrated Design: The fixed I/O configuration eliminates the need for separate I/O modules, reducing cabinet footprint, wiring complexity, and overall system cost. It's a self-contained unit ready for immediate deployment.
Robust Processing Capability: Equipped with a capable processor, it handles relay ladder logic execution efficiently, supporting a range of instructions for timing, counting, data comparison, and program control.
Built-in Communication: Features an RS-232/DF1 port for straightforward programming, data monitoring, and peer-to-peer communication, facilitating easy setup and integration into existing networks.
High Noise Immunity: Designed with industrial-grade components and shielding, it ensures stable operation in electrically noisy environments, minimizing the risk of faults or downtime.
Wide Operating Range: The controller is built to perform reliably across a broad temperature range, making it suitable for various factory and facility conditions.

Technical Specifications:

Attribute	Specification
Product Model	1747-L20N
Controller Series	SLC 500
I/O Capacity	12 Inputs / 8 Outputs (Fixed)
Processor Speed	1.5 KHz to 1 MHz
User Memory	1K Words
Communication Port	1 x RS-232 (DF1 Protocol)
Power Supply	24V DC
Typical Applications	Machine Control, Material Handling, Packaging, Simple Process Control

Benefits for Your Business:

Reduced Total Cost of Ownership: The all-in-one design lowers initial hardware, installation, and maintenance costs compared to modular systems for small-scale applications.
Simplified Engineering & Maintenance: With fixed I/O, system design is straightforward. Technicians familiar with Allen-Bradley products can easily program and troubleshoot, reducing training time and support costs.
Enhanced System Reliability: The reduced number of connections and components (no backplane, no module slots) decreases potential points of failure, leading to higher mean time between failures (MTBF).
Future-Proof Compatibility: As part of the extensive SLC 500 family, it benefits from a wealth of available documentation, community knowledge, and compatibility with Rockwell software tools.

Choosing Rossonix means partnering with a supplier committed to quality and global reach. Our operations, backed by ISO9001 and ISO9000 quality management practices, ensure that every product, including the 1747-L20N controller, meets rigorous standards. We efficiently serve a diverse clientele across North America, Europe, Asia, and Oceania from strategic shipping ports like Shenzhen and Hong Kong. Our annual export value reflects a consistent capability to meet international demand. This controller is more than a component; it's a reliable building block for your automation projects. Contact us today to discuss how the Allen-Bradley 1747-L20N can provide a solid foundation for your control system needs and to explore our competitive offerings.

Frequently Asked Questions (FAQ)

What is the main difference between a fixed controller like the 1747-L20N and a modular PLC?
The 1747-L20N has a pre-defined, unchangeable number of inputs and outputs (12/8) built into the main unit. A modular PLC uses a separate chassis where you can add, remove, or mix different I/O modules to customize the count and type of I/O points as needed.
Can I expand the I/O count on the 1747-L20N controller?
No, the I/O on the 1747-L20N is fixed and cannot be expanded. If your application requires more I/O points, you would need to select a different model from the SLC 500 modular series or consider using multiple fixed controllers networked together.
What software is required to program this controller?
It is programmed using Rockwell Automation's RSLogix 500 software. This software is used to create, edit, and download the ladder logic control program to the controller.
Is this controller suitable for new projects, or is it primarily for replacement/legacy systems?
While the SLC 500 series is a mature product line, the 1747-L20N remains a practical and cost-effective solution for new, small-scale applications where its fixed I/O count meets the requirements. It is also widely used for maintaining and replacing units in existing installations.
What type of inputs and outputs does it have (sinking/sourcing, relay, etc.)?
The specific electrical characteristics (e.g., 24V DC sinking or sourcing) are defined by the model suffix. For the exact specifications of the 1747-L20N, please consult the official datasheet or contact our sales team for detailed information.
Does it support communication with other devices or HMIs?
Yes, through its built-in RS-232 port using the DF1 protocol, it can communicate with programming terminals, other PLCs, and compatible Human-Machine Interfaces (HMIs) for data exchange and supervision.
What is the expected lifespan and availability of this product?
As a well-established product from a major manufacturer, it has a long operational lifespan. However, for current availability status and long-term supply considerations, please inquire directly as product lifecycle status can change.
Can you provide technical documentation or wiring diagrams?
Yes, upon request, we can provide relevant technical documentation, including user manuals and specification sheets, to assist with your integration and planning.