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.
Before replacing PM866AK02 3BSE081637R1, record the installed position, hardware revision, mounting or connector arrangement, paired assemblies and every applicable ABB service record. Compare the supplied unit with the original item and approved configuration, isolate all relevant energy sources, and follow the documented installation procedure. After installation, inspect every affected mechanical, electrical and communication interface and complete controlled functional checks before returning the equipment to service.
The PM866AK02 3BSE081637R1 ABB Redundant processor kit is listed as Active / Available from OEM. Current revision, availability and supplied scope are confirmed in the written quotation.
ABB PM866AK02 3BSE081637R1 documentation and reference links.
Important Notice: Every linked document must identify the listed model or its documented family. Confirm the complete order code, hardware revision and installed-system requirements before replacement.
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.
