ABB PM571 1SAP130100R0100 AC500 Central Processing Unit

Product Overview

The PM571 (1SAP130100R0100), specifically in its optimized B1 hardware revision, is a fundamental central processing unit for the ABB AC500 modular PLC platform. Engineered for entry-to-mid-level automation, it provides 64 kB of program memory, delivering high-speed, deterministic logic execution for localized machinery and decentralized I/O clusters. 

Technical Specifications

• Manufacturer: ABB

• Model Number: PM571

• Part Number: 1SAP130100R0100

• Hardware Revision: B1 (Enhanced EMC circuitry)

• Program Memory: 64 kB Flash EPROM

• User Data Memory: RAM-based for high-speed variable handling

• Included Accessory: ABB TA524 (Interface/Dummy module)

• Supply Voltage: 24 V DC (Supplied via Terminal Base)

• Diagnostic Interface: Integrated front-facing LCD screen

• Bus Support: High-speed local I/O bus and communication coupler bus

• Dimensions: 67.5 mm (Width) x 76 mm (Height) x 62 mm (Depth)

• Protection Rating: IP20

• Mounting Type: Plugs into AC500 Terminal Base (TB511/TB521/TB541)

Engineering Advantages

The PM571 Revision B1 offers a balanced blend of cost-efficiency and professional-grade performance:

• Immediate Field Diagnostics: The integrated LCD eliminates the "blind" troubleshooting process. Maintenance personnel can identify specific fault codes and CPU states directly at the cabinet door without needing an engineering laptop.

• Optimized Memory for Core Tasks: The 64kB memory is precisely sized for standard logic sequences, PID control loops, and arithmetic functions, making it a sustainable choice for small-scale process control.

• Hot-Swappable Modularity: Because the CPU mounts onto a separate Terminal Base, the hardware can be replaced during maintenance without disturbing the field wiring, significantly reducing potential wiring errors and downtime.

• B1 Hardware Reliability: This revision features improved internal components that offer superior resistance to electrical noise, ensuring consistent performance in environments with heavy motor interference.