Product Overview
The ABB PM858K01 is a high-performance CPU module designed for demanding industrial automation environments. As part of the AC 800M controller family, the PM858K01 delivers reliable processing power, flexible communication options, and robust construction—all in a compact DIN-rail mountable package. Whether you are upgrading an existing control system or building a new one, the PM858K01 offers the performance and dependability your operations require.
Key Technical Specifications
- Processor: MPC866
- Clock Frequency: 33 MHz
- Memory: 16 MB (7.147 MB RAM available for application)
- Flash PROM for firmware: 4 MB
- Power Supply: 24 V DC (19.2–30 V DC)
- Power Consumption: 210 mA typical, 360 mA max at +24 V
- Power Dissipation: 5.1 W (8.6 W max)
- Protection Class: IP20
- Operating Temperature: +5 to +55 °C
- Storage Temperature: -40 to +70 °C
Communication Interfaces
The PM858K01 base plate provides two RJ45 Ethernet ports (CN1, CN2) for Control Network connectivity, supporting 10 Mbit/s Ethernet (IEEE 802.3). Two additional RJ45 serial ports (COM3, COM4) are available: COM3 is a non-isolated RS-232C port with modem control signals, while COM4 is an isolated RS-232C port intended for configuration tool connection. The controller also supports CPU redundancy for higher availability, ensuring minimal downtime in critical processes.
Performance and Capacity
With a processing speed of 0.36 ms per 1000 boolean operations, the PM858K01 handles complex control logic efficiently. It supports up to 32 applications per controller, 64 programs per application, and 128 diagrams per application. The controller can manage up to 32 tasks with cycle times as low as 1 ms. For I/O expansion, it supports up to 96 I/O modules on the Modulebus (single CPU configuration) and up to 84 with redundant CPU. Communication modules on the CEX bus can number up to 12, with a maximum supply current of 2.4 A.
Reliability and Certifications
The PM858K01 is ISA Secure certified, ensuring robust cybersecurity for your control system. It holds full EMC certification and complies with EN 50178, IEC 61131-2, UL 61010-1, and UL 61010-2-201 for electrical safety. The module features IP20 protection, making it suitable for enclosure-free installations in industrial environments. It also meets marine standards (DNV-GL) and is RoHS compliant (EN 50581:2012). The built-in real-time clock maintains accuracy within 100 ppm (approx. 1 hour per year).
Installation and Mounting
The PM858K01 uses a simple slide-and-lock mechanism for DIN rail attachment and detachment, simplifying installation and maintenance. Each base plate carries a unique Ethernet address label (located on the TP830 base plate) for hardware identification. The module is compatible with System 800xA 6.0.2 and Compact Control Builder 6.0.0-1 onwards. Ensure proper ventilation and avoid exceeding the operating temperature range for optimal performance.
Selection Guide
When selecting the PM858K01, verify that your existing system components are compatible with the required software versions. For detailed specifications or assistance with integration, contact PLC Source PRO—your trusted supplier of industrial automation parts.