ABB PM591-2ETH 1SAP150100R0278 High-End Flagship CPU

Product Overview

The ABB PM591-2ETH (1SAP150100R0278) stands as the flagship central processing unit within the AC500 PLC family. It is specifically engineered for high-end industrial applications that demand massive computational power, extensive data storage, and advanced networking capabilities. With a record-breaking instruction processing time of 0.000002 ms (0.002 µs) and a generous 4 MB of user program memory, it handles the most complex automation tasks with absolute precision.

Technical Specifications

• Manufacturer: ABB

• Model Designation: PM591-2ETH

• Order Code: 1SAP150100R0278

• Instruction Execution Time: 0.000002 ms (0.002 µs)

• Memory Configuration:

• User Program: 4 MB

• Total System Memory: 9728 kB

• Data Type: RAM (Non-volatile Flash backup)

• Communication Interfaces:

• 2 x Ethernet (RJ45) for Modbus TCP, TCP/IP, UDP

• 1 x Serial (Configurable RS232 / RS485)

• Diagnostic Interface: Integrated LCD with 8 navigation keys

• Rated Supply Voltage: 24 V DC (20.4 ... 28.8 V DC)

• Dimensions: 76 mm (H) x 67.5 mm (W) x 62 mm (D)

• Net Weight: 0.137 kg

• Protection Rating: IP20

• Certifications: CE, RoHS, ETIM 10, REACH compliant

Engineering & Connectivity Highlights

The PM591-2ETH is a powerhouse designed for the Industry 4.0 era:

• Superior Processing Speed: The 0.002 µs execution time minimizes jitter and latency, crucial for high-speed synchronization in multi-axis motion control and safety-critical logic.

• Dual Network Architecture: Independent Ethernet ports allow users to bridge separate networks (e.g., separating the factory Office network from the Machine control network) or set up network redundancy for zero-downtime environments.

• Massive Storage: 4MB of program memory allows for thousands of rungs of logic and sophisticated function blocks, while the 10MB total memory supports high-density data logging and complex recipes.

• Field-Level Diagnostics: The integrated display provides immediate transparency. Maintenance teams can verify system health and networking parameters at the cabinet door, reducing the Mean Time to Repair (MTTR).