Overview
Manuals
Legacy CPU Identity
24-Module Capacity
PM851A Migration
Features:
- PM851K01 is the 3BSE018168R1 processor package, using a 24 MHz MPC860 with 8 MB total RAM and 2.282 MB for the application.
- The controller supports the documented 1 electrical + 1 optical ModuleBus layout and communicates through 1 x 10 Mbit/s RJ45; project loading must remain within the stated controller limits.
- CPU redundancy is not supported on this generation; replacement therefore depends on the exact software, CEX/ModuleBus arrangement and a planned PM851AK01 migration path.
PM851K01 3BSE018168R1 is an ABB AC 800M processor unit built around the PM851 CPU. Its MPC860 runs at 24 MHz with 8 MB RAM and 2.282 MB available to the application. The documented package comprises PM851 CPU, TP830 baseplate, TB850 CEX-bus terminator, TB807 ModuleBus terminator and backup battery. It is a standard process-control CPU rather than a High Integrity safety processor. The 24 VDC processor supports up to 1 CEX-bus modules. Local I/O uses 1 electrical + 1 optical clusters in single operation and Not supported in a redundant arrangement, subject to Up to 24 I/O modules. Control Network communication is provided through 1 x 10 Mbit/s RJ45 using MMS and IAC. Selection must preserve Existing PM851-based AC 800M configuration, the installed project, CPU generation, partner hardware and bus topology.
ABB AC 800M Controller and Communication Interfaces, 3BSE063691, and the current ABB System 800xA product catalog. Values apply to the stated CPU and package configuration.
The ABB PM851K01 3BSE018168R1 is supported by Moore Automated for exact-item replacement and spare-part enquiries.
ABB PM851K01 3BSE018168R1 Processor unit 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 PM851K01 3BSE018168R1 package contains PM851 CPU, TP830 baseplate, TB850 CEX-bus terminator, TB807 ModuleBus terminator and backup battery. Check the order number and every supplied item because a bare CPU or a different K01 generation is not the same product scope.
Each PM851 CPU uses a 24 MHz MPC860 with 8 MB RAM and 2.282 MB application space. The 0.46 ms Boolean benchmark is not the complete process-loop response time.
The processor accepts up to 1 CEX-bus modules and uses 1 electrical + 1 optical clusters in single operation. The redundant layout is Not supported; apply the Up to 24 I/O modules limit and verify Existing PM851-based AC 800M configuration.
