Overview
Manuals
Kit Contents
I/O Capacity
Link Setup
Features:
- Two PM866A CPUs and their baseplates form the K02 package; the official kit also lists TK850 and TK851 interconnection cables and one backup battery for each processor.
- Each 133 MHz CPU provides 64 MB RAM, with 51.389 MB available for applications; redundant operation retains the documented per-controller limits rather than doubling usable application memory.
- Up to 12 CEX-bus communication modules and seven optical ModuleBus clusters support configured expansion, with up to 84 I/O modules in the redundant CPU arrangement.
PM866AK02 3BSE081637R1 is the redundant processor package for the PM866A member of ABB's AC 800M controller family. It combines two CPU units, two TP830 baseplates, two TB807 ModuleBus terminators, a TK850 CEX-bus expansion cable, a TK851 RCU-Link cable and a memory-backup battery for each CPU. Each processor has a 133 MHz MPC866, 64 MB RAM and 51.389 MB available for applications; the paired arrangement does not pool the two memory capacities. The controller provides a real-time clock, diagnostic indicators, an INIT button and a CompactFlash interface. Ethernet connections on each baseplate link the controller to the Control Network. Configured CPU redundancy supports a documented maximum switchover time of 10 ms, while the redundant ModuleBus arrangement uses optical clusters. This is a standard controller kit, not a High Integrity safety controller. Software, communication modules, I/O and the complete supplied accessory scope must match the intended installation.
ABB PM866AK02 data sheet, exported 3 September 2026. CPU ratings are per unit; K02 identifies the two-CPU package.
The ABB PM866AK02 3BSE081637R1 is supported by Moore Automated for exact-item replacement and spare-part enquiries.
ABB PM866AK02 3BSE081637R1 Redundant processor kit manual(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The OEM package lists two PM866A CPUs, two TP830 baseplates, two TB807 terminators, a TK850 CEX-bus expansion cable, a TK851 RCU-Link cable and two backup batteries. Match the written supply scope to this list; separately ordered communication modules are not implied.
For redundant PM866A operation, use the documented optical ModuleBus arrangement: seven optical clusters, no electrical cluster and up to 84 I/O modules. The controller also supports up to 12 CEX-bus communication modules, with architecture and power limits checked together.
Two 10 Mbit/s Ethernet ports on each baseplate connect to the Control Network, for which ABB recommends a 100 Mbit/s switched backbone. Do not confuse backbone speed with port speed. The COM3 and COM4 serial-interface specifications apply only to nonredundant configurations.
