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Allen-Bradley 1747-L531 SLC 5/03 Processor

Allen-Bradley SLC 5/03 modular controller with 8KB memory and dual communication ports.

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ManufacturerAllen Bradley

Part number1747-L531

Memory 8KB

I/O Capacity 4096 Inputs/4096 Outputs

Communication Ports RS-232, DH485

Scan Time ~1 ms/K (program), 0.225 ms (I/O)

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8KB User Memory RS-232 and DH485 Communication High I/O Capacity Supports up to 60 I/O modules SLC 500 Modular Series Suitable for complex systems

Product description

The Allen-Bradley 1747-L531 is an SLC 5/03 controller from the SLC 500 Modular Hardware series. It offers 8KB of user memory, which can be configured for program or data storage. This processor supports up to 4096 discrete input and output points and is compatible with up to 60 I/O modules, including analog, digital, and intelligent types. It features built-in RS-232 and DH485 communication ports for integration with programming terminals and other devices.

This controller is ideal for small to large, complex distributed systems in various industries such as manufacturing, material handling, and process automation. Its versatility allows it to handle a wide range of applications requiring reliable control and scalable I/O.

Source your Allen-Bradley 1747-L531 from Stanlo Automation, a veteran-owned surplus parts distributor. We offer a reliable supply of industrial automation components, ensuring you get the parts you need to keep your operations running smoothly.

Technical specifications

Memory	8KB
I/O Capacity	4096 Inputs/4096 Outputs
Communication Ports	RS-232, DH485
Scan Time	~1 ms/K (program), 0.225 ms (I/O)
Chassis Support	Up to 3 local chassis (30 slots each)
Voltage	5V DC (backplane), 500 mA (backplane current)

Common applications

Manufacturing

Material Handling

Process Automation

Machine Control

Building Automation

Water Treatment

Compatible systems

SLC 500 Chassis 1746 I/O Modules RS-232 Devices DH485 Network

Also known as

SLC 5/03 Processor Allen-Bradley SLC 500 CPU 1747L531

Replaces / compatible with

The 1747-L531 is a controller within the SLC 500 series and does not have a direct replacement as it is a processor module. It is designed to work within the SLC 500 platform and its associated chassis and I/O modules.

Technical note

Expert tip

Ensure proper power supply compatibility (1746-P1 through 1746-P7) and consider the backplane current draw when configuring your SLC 500 system.

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Frequently asked questions

What is the memory capacity of the Allen-Bradley 1747-L531?

The Allen-Bradley 1747-L531 features 8KB of user memory. This memory can be configured by the user for either program storage or data storage, offering flexibility for various application needs.