Product Summary
The 1747-L543 SLC 5/04 processor from Allen-Bradley delivers powerful control for medium to large applications. Its 64KB battery-backed memory and 4096 I/O capacity provide the performance you need for complex automation tasks. This processor supports both DH+ and RS-232 communication protocols for flexible system integration.
Expert Technical Evaluation & Performance Review
Processor Architecture and Memory Capabilities
The 1747-L543 features an integrated 64KB user memory that sets it apart. It allocates 60K words for program and data storage. A dedicated 4K words section handles data only. This architecture enables robust program execution. The processor includes a Flash EPROM backup memory. It also provides 107 programming instructions for diverse tasks. The 64 KB RAM is battery-backed for data retention.
I/O Capacity and System Configuration
This processor handles up to 4096 discrete inputs and 4096 discrete outputs. It also manages 480 analog I/O points effectively. The 1747-L543 supports a maximum of three I/O chassis. These chassis provide up to 30 I/O module slots. This configuration allows for extensive system expansion. You can place SLC racks near distributed I/O signals. This eliminates the need for long cable runs and multiple processors.
Product Procurement & Buyer Guide
Communication and Networking Features
The 1747-L543 integrates a Data Highway Plus (DH+) port for plant-wide networking. It also offers a 9-pin RS-232 port for local programming. The processor supports distributed I/O topology effectively. This architecture enables centralized control over widely spread signals. Communication scanners install in each distributed I/O rack. A communication adapter resides in the CPU rack. This setup streamlines system design and reduces costs.
Performance Specifications and Environmental Tolerance
The 1747-L543 achieves a program scan time of 0.9 ms/K. Its typical I/O scan time is 0.225 milliseconds. Bit execution completes in just 0.37 µs. This ensures fast and reliable control logic processing. The module operates from 0 to 60 degrees Celsius. It withstands 30 G of operating shock. Storage temperature ranges from -40 to 85 degrees Celsius. Relative humidity tolerance is between 5 and 95 percent.
Procurement Considerations for Engineers
The 1747-L543 applies perfectly to medium or large control applications. It supports advanced functions like PID control and motion control. You can also implement complex control strategies with it. The diagnostic buffer provides fault details when online. This helps you troubleshoot issues quickly and efficiently. Ensure you order the correct backup memory module. Use the 1747-M13 for Flash EPROM backup. The battery model is 1747-BA for RAM retention.
