描述
ABB PM891K01 3BSE053241R1 | AC 800M Processor Unit for ABB Ability System 800xA
Product Overview
ABB PM891K01, order code 3BSE053241R1, is a high-performance processor unit within the ABB AC 800M controller family for the ABB Ability™ System 800xA distributed control system. It serves as the main processing unit to execute control logic, analog regulation, sequence control and handle industrial communication for process plants.
This monolithic DIN-rail mounted unit integrates CPU, power circuit, real-time clock, LED status indicators and an INIT button. It supports CPU redundancy configuration to improve system availability and can connect to S800 I/O clusters via optical Modulebus. The built-in CEX-bus enables expansion of additional communication interface modules.
The package includes the PM891 CPU module, TB850 CEX-bus terminator and TB853 RCU Control Link Terminator. Software license is not included in this unit. It is compatible with System 800xA version 6.0.2 and later.
PM891K01
Key Features
- 450 MHz MPC8270 processor with 256 MB RAM
- Dual isolated RJ45 Ethernet ports for control network communication
- 1 isolated RJ45 COM4 service port for configuration tool access
- CEX-bus interface for communication module expansion
- Optical Modulebus supporting up to 7 S800 I/O clusters, maximum 12 I/O units per cluster
- Supports hot standby CPU redundancy setup
- SD card interface for application storage
- No internal battery required for operation
- IEC 61131-3 programming standard support via Compact Control Builder
- DIN rail mounting, IP20 protection rating for cabinet installation
Technical Specifications
| Item | Specification |
|---|---|
| Model | PM891K01 |
| Order Number | 3BSE053241R1 |
| Manufacturer | ABB |
| Series | AC 800M, System 800xA DCS |
| Processor | 450 MHz MPC8270 |
| Memory | 256 MB |
| Power Supply | 24 V DC, range 19.2 V DC ~ 30 V DC |
| Communication Ports | 2 × RJ45 Ethernet; 1 × RJ45 COM4 service port; CEX-bus; Optical Modulebus |
| Dimensions (H×W×D) | 186 mm × 174 mm × 94 mm |
| Net Weight | 2.1 kg |
| Compatible System | ABB Ability System 800xA V6.0.2+ |
| Mounting | DIN rail |
| Protection Class | IP20 |
Typical Applications
- Oil & gas process control
- Power generation and auxiliary control systems
- Chemical and petrochemical plants
- Pulp & paper manufacturing
- Water and wastewater treatment
- Metallurgy and mining process automation
Compatibility Notes
PM891K01 (3BSE053241R1) is the single CPU unit. PM891K02 (3BSE053242R1) is the redundant kit containing two PM891K01 processors plus interconnection cables. For full hot-swap redundancy, BC810 CEX-bus interconnection unit must be ordered separately.
FAQ
Q: Does PM891K01 come with a control system license?
A: No, application and runtime licenses are sold separately.
Q: Can I run this controller without redundant pairing?
A: Yes, PM891K01 can operate as a standalone non-redundant controller. Redundancy is an optional configuration.
Q: What I/O modules work with PM891K01?
A: It is designed for ABB S800 I/O modules via optical Modulebus.
Q: Is an internal battery fitted inside PM891K01?
A: No internal battery. Real-time clock is maintained without battery backup.
Warnings
- Only install inside a protected industrial control cabinet.
- Disconnect power before module insertion, removal or wiring.
- Verify firmware version and 800xA system compatibility before commissioning.
- Use only ABB original matching terminators and cables for CEX-bus and RCU links.
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