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Application Scenarios
A system integrator was tasked with upgrading a thermal power plant’s burner management system (BMS). The legacy controller could not handle the high-speed logic and safety interlocks required for multiple fuel valves and flame detectors. By deploying the ABB PM866K02 3BSE050199R1 as the central safety PLC, the integrator leveraged its deterministic scan time and robust communication capabilities. The module’s dual Ethernet ports enabled seamless integration with the plant’s System 800xA operator stations for real-time alarm monitoring, while its high-speed processing ensured safe and reliable shutdown sequences during critical fault conditions, significantly improving plant safety and reducing false trips.
Parameter
| Parameter | Value / Specification |
|---|---|
| Product Model | PM866K02 (Redundant Processor Unit Kit) |
| Manufacturer | ABB |
| Ordering Code | 3BSE050199R1 |
| Product Type | Redundant CPU Kit (AC 800M Family) |
| Processor | Dual PM866K01 CPUs (PowerPC/MPC8270, 133 MHz each) |
| Memory | 64 MB RAM per CPU (~51 MB available for application) |
| Redundancy | 1:1 Hot-Standby (Automatic failover) |
| Failover Time | < 50 ms (Typical, bumpless transfer) |
| Communication Ports | 2x Ethernet (CN1/CN2, 10 Mbit/s), 2x Serial (RS-232/RS-485) per CPU |
| Power Supply | 24 V DC (via baseplate, range 19.2-30 V DC) |
| Power Consumption | ~5 W per CPU (Low heat dissipation) |
| Operating Temperature | 0 °C to +60 °C (Standard industrial range) |
| Mounting | DIN Rail (35mm, using included baseplates) |
| Included in Kit | 2x PM866K01 CPU, 2x Baseplate, TK851 RCPU-Link Cable, TK850 CEX-Bus Cable, Terminators |
