Product Overview

The Allen-Bradley 1747-L532 is a high-performance central processing unit (CPU) within the SLC 500 modular hardware platform. This SLC 5/03 controller is equipped with 16K words of total configurable memory, designed to handle complex instruction sets and mid-range automation tasks. It features integrated communication ports, including a dedicated DH-485 port and an RS-232 port, providing versatile connectivity for programming, peripheral interfacing, and peer-to-peer networking.

Engineered for scalability, the 1747-L532 allows for extensive I/O expansion, supporting up to 4096 discrete inputs and outputs. Its modular form factor enables it to be seated in any SLC 500 chassis, where it serves as the intelligent core for managing real-time logic, timing, and counting functions in industrial environments.

Technical Specifications

• Manufacturer: Allen-Bradley / Rockwell Automation

• Model Number: 1747-L532

• Processor Type: SLC 5/03

• User Memory: 16K Words (12K for instructions, 4K for data)

• Local I/O Capacity: Max 4096 discrete points

• Chassis Slots: Occupies 1 slot in SLC 500 Rack

• Communication Ports: DH-485 and RS-232 (DF1, DH-485, Modbus RTU Master, or ASCII)

• Typical Scan Time: 0.44ms/K

• Program Backup: Flash EPROM and Battery-backed RAM

• Operating Temperature: 0 to 60 degrees Celsius

• Weight: 0.26 kg

• Dimensions: 3.5 x 13 x 14.5 cm

Operational Functionality and Control

The 1747-L532 SLC 5/03 processor is distinguished by its advanced execution speed and enhanced communication capabilities compared to the 5/01 and 5/02 series. The onboard RS-232 port offers the flexibility to communicate with SCADA systems, HMI terminals, or third-party devices using standard protocols.

To ensure high system availability, the module utilizes a lithium battery to maintain the CMOS RAM, preventing data loss during power cycles. It also supports optional EEPROM memory modules for non-volatile program storage. This controller is widely deployed in manufacturing, material handling, and process control applications where a balance of processing power and localized I/O management is required.