Description
Product Parameters
- Model Number: PM866K02 (Kit includes 2x PM866 CPUs + Redundancy Hardware)
- Part Number: 3BSE050199R1
- Series: 800xA / Advant Controller 800M
- Processor: 450 MHz
- Memory: 64 MB (RAM)
- Clock Frequency: 133 MHz
- Communication: Dual Ethernet (IEEE 802.3), RS-232C, and ModuleBus
- Redundancy: Built-in support for High Availability (HA) configurations
- Country of Origin: Estonia / Sweden
- Weight: 3.53 lbs (1.60 kg) for the full kit
- Dimensions: 7.3 in x 5.3 in x 4.7 in (18.6 cm x 13.5 cm x 11.9 cm)
The ABB PM866K02 is a high-performance processor kit designed for the AC 800M controller series within the 800xA DCS environment. As a “K02” kit, it is specifically configured for redundancy, containing two PM866 CPU units and the necessary synchronization links. This processor is the “top-tier” workhorse for large-scale industrial automation, offering significantly higher memory and processing power than the PM861 or PM864. It handles complex control logic, advanced communication protocols, and high I/O counts with ease, making it the standard choice for critical applications like oil refineries, power plants, and chemical processing.
ABB PM866K02 3BSE050199R1
Model Comparison
The PM866 (450 MHz / 64MB) represents a major leap over the PM864A (250 MHz / 32MB), allowing for larger application programs and faster cycle times. While the PM865 was a popular predecessor, the PM866 features improved internal hardware architecture for better thermal management and faster data throughput on the ModuleBus. Unlike the PM891, which is the ultra-high-end successor with even greater RAM, the PM866 remains the most common “performance” processor for standard 800xA installations due to its balance of cost and computational capability.
Operation Tips
- Firmware Alignment: When replacing one CPU in a redundant pair, ensure the firmware version on the new PM866 matches the existing “Primary” CPU exactly using the Control Builder M tool.
- Battery Maintenance: The PM866 uses a plug-in battery (SB821 or SB822) to retain the RAM application during power loss. Check the “BATT” LED; if it turns yellow, replace the battery immediately while the controller is powered to avoid data loss.
- ModuleBus Termination: If you are connecting S800 I/O modules directly to the PM866 via the ModuleBus, ensure the TB810/TB811 bus extension is correctly terminated to prevent communication “jitter.”
- IP Configuration: Use the IPConfig tool or the serial port to set the unique IP addresses for both CPUs in the redundant set. The “Virtual” IP address will be used by the DCS to communicate with whichever unit is currently active.
