Overview
Manuals
PM858 Pair Contents
Memory & Timing Limits
Optical Redundancy
Features:
- 3BSE082896R1 identifies the two-unit PM858K02 package; each PM858 CPU retains its own 33 MHz processor and 7.147 MB application-memory limit.
- The controller supports the documented 1 electrical + 7 optical ModuleBus layout and communicates through 2 x 10 Mbit/s RJ45 per CPU; project loading must remain within the stated controller limits.
- CPU redundancy is supported with a maximum 10 ms switchover; the redundant layout uses 7 optical clusters and the complete kit or matching partner hardware must be verified.
PM858K02 3BSE082896R1 is an ABB AC 800M redundant process processor kit built around the PM858 CPU. Its MPC866 runs at 33 MHz with 16 MB RAM and 7.147 MB available to the application. The K02 order combines two PM858 processors with the documented CEX/RCU link hardware. Performance and memory limits apply to each CPU and are not pooled. It is a standard process-control CPU rather than a High Integrity safety processor. The 24 VDC processor supports up to 12 CEX-bus modules. Local I/O uses 1 electrical + 7 optical clusters in single operation and 7 optical in a redundant arrangement, subject to 96 / 84 I/O modules. Control Network communication is provided through 2 x 10 Mbit/s RJ45 per CPU using MMS and IAC. Selection must preserve 800xA 6.0.2 / Compact Control Builder 6.0.0-1 and later, the installed project, CPU generation, partner hardware and bus topology.
Before replacing PM858K02 3BSE082896R1, 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 PM858K02 3BSE082896R1 ABB Redundant process processor kit is listed as Active / Available from OEM. Current revision, availability and supplied scope are confirmed in the written quotation.
ABB PM858K02 3BSE082896R1 Redundant process 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.
ABB identifies PM858K02 3BSE082896R1 as a two-processor order: two PM858 CPUs, two TP830 bases, two TB807 terminators, TK850, TK851 and two backup batteries; no license. Confirm both CPU labels and the cable/terminator inventory before treating an offered set as complete.
Each PM858 CPU uses a 33 MHz MPC866 with 16 MB RAM and 7.147 MB application space. The 0.36 ms Boolean benchmark is not the complete process-loop response time.
The processor accepts up to 12 CEX-bus modules and uses 1 electrical + 7 optical clusters in single operation. The redundant layout is 7 optical; apply the 96 / 84 I/O modules limit and verify 800xA 6.0.2 / Compact Control Builder 6.0.0-1 and later.
