Product Overview
The ABB PM891K01 is a high-performance processor unit designed for the ABB 800xA control system. With a 450 MHz clock frequency and 256 MB memory, it delivers fast and reliable logic execution for demanding industrial applications. This module is only compatible with 800xA 6.0.2 and onwards, ensuring it meets the latest system requirements.
Key Specifications
| Parameter |
Value |
| Processor Type |
MPC8270 |
| Clock Frequency |
450 MHz |
| Memory |
256 MB |
| Performance (1000 boolean operations) |
0.043 ms |
| Power Supply |
24 V DC (19.2–30 V DC) |
| Ethernet Channels |
2 |
| Dimensions (H×W×D) |
186 mm × 174 mm × 94 mm |
| Weight (including base) |
1600 g (3.5 lbs) |
Performance and Memory
The PM891K01 processes 1000 boolean operations in just 0.043 ms, making it suitable for high-speed control loops. It offers 32 applications per controller, 64 programs per application, and up to 128 diagrams per application, providing ample capacity for complex automation strategies. The module supports down to 1 ms cycle times and can handle up to 32 tasks per controller with 32 different cycle times.
Communication and Integration
Equipped with two 10/100 Mbit/s Ethernet channels, the PM891K01 supports MMS (Manufacturing Message Service) and IAC (Inter Application Communication) protocols for seamless integration into control networks. It also features a dedicated RS-232C service port (COM 4) for maintenance and diagnostics. The module supports up to 12 communication modules on the CEX bus and provides a max supply current of 2.4 A on the bus.
Environmental and Certification
Operating temperature ranges from 0 to +55 °C, with storage from -40 to +70 °C. The module is rated IP20 and complies with industrial environmental standards, including EN 61000-6-4 for emissions and EN 61000-6-2 for immunity. It holds CE marking and certifications for electrical safety (EN 50178, IEC 61131-2, UL 61010-1) and hazardous locations (UL 60079-15, Class 1, Zone 2). Marine certifications include ABS, BV, DNV-GL, and LR.
Applications
This processor unit is ideal for process control, discrete manufacturing, and critical infrastructure applications where reliability and performance are paramount. Its fast cycle times and robust communication capabilities make it suitable for real-time control, data acquisition, and supervisory control within the 800xA environment.
Selection Guide
When selecting the PM891K01, verify compatibility with your existing 800xA system version (6.0.2 or later). Ensure your power supply meets the 24 V DC requirement and that your network infrastructure supports 100 Mbit/s Ethernet. This module does not include a license, so plan accordingly. For guaranteed authenticity and reliable supply, choose PLC Source PRO as your trusted distributor.