Allen Bradley 1747-L542 CPU Processor Unit Module

Product Introduction

The Allen-Bradley 1747-L542 CPU Processor Unit Module is a high-performance controller within the SLC 500 Series, designed for large-scale industrial automation applications requiring extensive memory, high-speed processing, and substantial I/O capacity. It is part of the advanced SLC 5/05 family, providing deterministic and reliable control for both discrete and analog operations.

The 1747-L542 features 28K Words of program memory and 32K Words of user memory, enabling complex control programs and extensive data handling. It supports up to 4096 input points and includes 4K Words of data memory for storage of process values, system variables, and parameters. Operating over a 5–24 VDC voltage range, with a backplane current of 500 mA at 5 VDC and 175 mA at 24 VDC, the module ensures efficient power utilization and reliable operation in SLC 500 racks. This CPU is ideal for high-demand industrial environments requiring fast, deterministic control and large-scale automation integration.

Product Specifications

Applications

• Large-scale machine and process control requiring high input/output capacity

• Complex sequencing, logic, and process automation in manufacturing environments

• Data acquisition and storage with large memory and data registers

• Standalone or networked SLC 500 systems requiring deterministic and reliable control

• Industrial automation retrofits needing expanded program and user memory

• Control of multi-line processes integrating extensive digital and analog signals

Advantages

• High program memory (28K Words) and user memory (32K Words) for advanced applications

• Large data memory (4K Words) for process values, variables, and system parameters

• Supports up to 4096 inputs, enabling control of extensive automation systems

• Wide voltage range (5–24 VDC) ensures compatibility with industrial power supplies

• Reliable backplane current handling, 500 mA @ 5 VDC and 175 mA @ 24 VDC

• Compact, lightweight design, suitable for SLC 500 rack installations

• Seamless integration with SLC 500 modules, providing flexibility in system configuration

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