Allen-Bradley SLC 5/03 16K Memory CPU Processor

Description

The 1747-L532 is a powerful and reliable SLC 5/03 CPU from Allen-Bradley's renowned SLC 500 family. It is equipped with 16K words of user memory, making it suitable for medium-sized control applications. This processor features integrated DH-485 and RS-232 communication ports for flexible programming, HMI connectivity, and networking. As an obsolete component, it is a crucial spare part for maintaining the operational integrity of existing SLC 500 systems.

Specifications

• Manufacturer: Allen-Bradley
• Product Family: SLC 500
• Model: SLC 5/03
• Catalog Number: 1747-L532
• User Memory: 16K Words
• Communication Ports: 1x DH-485, 1x RS-232 (DB9)
• Power Requirements: 500mA at 5V DC, 175mA at 24V DC

Label Info

• CAT: 1747-L532
• SER: F
• FW: 11
• MAT NO: PN-285043
• SN: 58240235

Application

Ideal for process control, material handling, and manufacturing automation applications that rely on the SLC 500 platform. It serves as a direct replacement part to minimize downtime and extend the lifecycle of established control systems.

Country of Origin

Product of Singapore.

CO2 Impact

By purchasing this pre-owned component, you are contributing to a circular economy and helping to avoid 18.0 kg of CO2 emissions associated with the production of a new unit. This saving is comparable to the emissions from driving a car for 90 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

What is the significance of the "Series F" and "FW 11" on this 1747-L532 processor?

Answer: The "Series F" denotes a specific hardware revision, which can be important for compatibility with certain I/O modules or chassis. "FW 11" refers to the OS firmware version 11. This is critical as programs created with newer software versions might not be compatible, and specific communication features or instruction sets are tied to the firmware level.

Can this SLC 5/03 CPU communicate over EtherNet/IP?

Answer: No, not natively. The 1747-L532 processor comes with built-in DH-485 and RS-232 serial ports. To connect it to an EtherNet/IP network, you would need an external gateway module, such as a 1761-NET-ENI, which converts the serial communication to EtherNet/IP.

What type of battery does the 1747-L532 use for memory backup, and when should it be replaced?

Answer: The 1747-L532 uses a 3V lithium battery, part number 1747-BA. The "BATT" LED on the front will illuminate when the battery voltage is low. It is crucial to replace the battery while the processor is powered on to prevent the loss of the user program stored in the RAM. It is recommended to replace it every 1-2 years as part of a preventative maintenance schedule.

Last Update: Friday, March 13, 2026

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