Description
- Operating Temp: 0 °C to +60 °C (derate to 50 °C in sealed cabinets)plcdcsmodule+1
- Storage Temp: −20 °C to +60 °Celectric-valveactuator+1
- Humidity: 5–95% RH, non-condensingplcdcsmodule+1
- Protection Class: IP20 (rack-mounted, indoor use only)electric-valveactuator+1
- Dimensions: Approx. 30 × 20 × 20 cm (11.8 × 7.9 × 7.9 in)rossonix+1
- Weight: Approx. 2.0–2.7 kg (4.4–6.0 lb)xtplccenter+1
- Country of Origin: Sweden (SE)xtplccenter+1
- Compliance: CE, UL, IEC 61131-2, IEC 61326, ATEX, SIL (depending on configuration)electric-valveactuator+1
Product Introduction
ABB PM866AK02 3BSE081637R1 is a redundant processor unit kit in ABB’s AC800M / System 800xA DCS portfolio, designed for high-availability control applications in power generation, oil and gas, pulp and paper, and water/wastewater where uninterrupted operation is critical.plcdcsmodule+1
This kit includes two PM866A CPU modules (133 MHz MPC866), two TP830 baseplates, ModuleBus terminators, CEX-bus extension and RCU-Link cables, and battery-backed real-time clock, enabling hot-standby redundancy with automatic switchover and seamless integration with S800 I/O and 800xA operator workstations.xtplccenter+1
Frequently Asked Questions
Q: Can I hot-swap the PM866AK02 3BSE081637R1?
A: Yes, in redundant AC800M configurations. The PM866AK02 is designed for hot-swap replacement when installed in a 1:1 hot-standby pair with intact CEX-bus and RCU-Link connections, provided the remaining CPU is active and the switchover is inhibited during the procedure. In simplex systems, you must de-energize the rack before removal to avoid control loss.plcdcsmodule+1
Q: Is the PM866AK02 3BSE081637R1 obsolete? Are there direct replacements?
A: Yes, the PM866AK02 is effectively obsolete in new ABB production. Direct replacements are other PM866A variants (e.g., PM866AK01, PM866AK03) or upgraded AC800M controllers (e.g., PM867, PM868), but verify CPU speed, memory size, ModuleBus compatibility, and Control Builder M project compatibility before swapping.
