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      ABB PM891K01 3BSE053241R1
      ABB PM891K01 3BSE053241R1

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      Processor unit

      PM891K01 3BSE053241R1

      Product Information:

      450 MHz processor unit with 256 MB RAM and 208.985 MB available for the application. Supports CPU redundancy with a maximum 10 ms switch-over. Provides 2 Ethernet channels and supports 12 CEX-Bus communication modules.


      Product image is representative; revision or series may vary. Contact us to request a specific version.
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      • One-year warranty
      • Global shipping
      • Exact-model verification
      WhatsApp: +86 180 2077 6792 Email parts team
      01


      Model Verified

      Model, revision and nameplate reviewed
      02


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      You will get an email confirming that we have received your enquiry
      03


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      One of our team will be in touch to confirm your part(s) specification and condition
      04


      Your quote

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        • PRODUCT OVERVIEW

          What is this product?

          ABB identifies PM891K01 3BSE053241R1 as a 450 MHz PM891 processor unit in the AC 800M controller family. It provides 256 MB RAM, including 208.985 MB available for the application, and uses the MPC8270 processor architecture documented by ABB. The unit supports 2 Ethernet channels, up to 12 CEX-Bus communication modules and maximum 84 non-redundant or 84 redundant i/o modules. CPU redundancy and a maximum 10 ms switch-over are supported in a correctly engineered pair. Selection must be based on the complete 3BSE053241R1 article number, CPU type, control-software version and installed bus configuration.

          Source boundary

          Technical values are taken from ABB AC 800M controller and processor-unit documentation. Final compatibility is confirmed against article number 3BSE053241R1, the installed controller nameplate and the project hardware configuration.
        • APPLICATIONS

          Where it may be used

          The following contexts apply only after PM891K01 3BSE053241R1, its software level, bus layout and redundancy design have been verified.

          Large application execution

          Run a verified control project with 256 MB RAM and the highest listed CPU performance.

          High-density communication controller

          Coordinate a complex CEX-Bus interface set in an approved architecture.

          Redundant PM891 process node

          Maintain paired processors with the documented data and control RCU links.

          Eighty-four-module I/O backbone

          Serve the stated ModuleBus capacity without relying on an electrical local cluster.
      Technical specifications for

      PM891K01 3BSE053241R1

      0 TECHNICAL PARAMETERS
      • Manufacturer:
        ABB
      • Product Category:
        DCS Systems
      • Product type:
        Processor unit
      • CPU module:
        PM891
      • Clock frequency:
        450 MHz
      • Memory (RAM):
        256 MB
      • RAM available for application:
        208.985 MB
      • Processor type:
        MPC8270
      • High Integrity controller:
        No
      • Flash storage for application and data:
        Yes
      • CPU redundancy support:
        Yes
      • Redundant switch-over time:
        Maximum 10 ms
      • Performance, 1000 Boolean operations:
        0.043 ms
      • Power supply:
        24 VDC (19.2 to 30 VDC)
      • Power consumption, typical / maximum:
        660 / 750 mA
      • Typical power dissipation:
        15.8 W
      • Ethernet channels:
        2
      • Communication modules on CEX-Bus:
        12
      • ModuleBus I/O capacity:
        maximum 84 non-redundant or 84 redundant I/O modules
      • Stock:
        14
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      • 03

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      • 04

        Confirm the order

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      • 05

        Pay by bank transfer

        Pay the full invoiced amount by bank wire in RMB/CNY, GBP, EUR or USD using the official invoice details.
      • 06

        Verify and dispatch

        The part is inspected, tested and securely packed before dispatch, with tracking provided after release.
      Request a Verified Quote
      BUYER INFORMATION

      Product condition level information

      Commercial details are confirmed in writing before payment.
      • 01

        Factory Sealed

        Unused product with the original factory seal intact; packaging age or storage marks may still be present.

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      • 02

        Original Pack

        Unused product in original manufacturer packaging that was not originally factory sealed.

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      • 03

        Factory New

        New and current product sourced through the manufacturer or authorized supply channel when expressly confirmed in the quotation.

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      Alternative Names

      PM891K01 3BSE053241R1 PM891K01 3BSE053241R1 PM891 processor unit

      Information

      Overview Manuals Architecture RCU Data and Control Links Power and ModuleBus

      Features:

      • 450 MHz PM891 processing with 256 MB RAM and 208.985 MB available for application execution
      • 2 integrated Ethernet channels plus support for 12 CEX-Bus communication modules in the documented controller layout
      • Redundant CPU operation with maximum 10 ms switch-over and maximum 84 non-redundant or 84 redundant i/o modules through the verified ModuleBus arrangement
      ABB identifies PM891K01 3BSE053241R1 as a 450 MHz PM891 processor unit in the AC 800M controller family. It provides 256 MB RAM, including 208.985 MB available for the application, and uses the MPC8270 processor architecture documented by ABB. The unit supports 2 Ethernet channels, up to 12 CEX-Bus communication modules and maximum 84 non-redundant or 84 redundant i/o modules. CPU redundancy and a maximum 10 ms switch-over are supported in a correctly engineered pair. Selection must be based on the complete 3BSE053241R1 article number, CPU type, control-software version and installed bus configuration.

      Technical values are taken from ABB AC 800M controller and processor-unit documentation. Final compatibility is confirmed against article number 3BSE053241R1, the installed controller nameplate and the project hardware configuration.

      The ABB PM891K01 3BSE053241R1 AC 800M processor unit is supported by Moore Automated for verified industrial replacement and spare-part requirements.
      ABB PM891K01 3BSE053241R1 AC 800M 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.

      PM891 Processing Architecture

      PM891 provides 450 MHz processing, 256 MB RAM and 208.985 MB available for the control application.

      RCU Data and Control Links

      A redundant PM891 arrangement uses separate RCU data and control links; verify both cables, terminators and partner identity.

      Power and ModuleBus Constraints

      Confirm the higher 24 VDC current demand and the optical ModuleBus architecture because PM891 does not support the electrical local ModuleBus.

      Technical notes

      PM891K01 3BSE053241R1 is an ABB AC 800M processor unit built around the PM891 CPU, with a 450 MHz clock, 256 MB RAM and 208.985 MB available for the control application. ABB documents 2 Ethernet channels, 12 supported CEX-Bus communication modules, CPU redundancy with a maximum 10 ms switch-over, a 24 VDC supply and IP20 construction. Replacement engineering must verify article number 3BSE053241R1, firmware and control-system version, the ModuleBus/CEX-Bus layout and every redundant-partner detail before installation.

      PM891K01 High-Performance Unit Validation

      Confirm the complete PM891K01 3BSE053241R1 identity, article number 3BSE053241R1, PM891 nameplate, CPU or hardware revision, processor-unit kit contents and the installed redundant controller arrangement. If any marking is unclear, provide close photos of the front label, side label and connections.

      PM891 System Quote Requirements

      For an accurate quotation, provide quantity, the complete PM891K01 3BSE053241R1 and 3BSE053241R1 identity, nameplate photos, controller software version, CEX-Bus and ModuleBus configuration, redundant partner details, receiving country and required delivery date. Moore Automated will use these records to match the exact processor unit.

      Customs & shipping dimensions / weight

      • Packed shipping dimensions
        Confirmed after final packing
        Approx. 17.4 x 18.6 x 9.4 cm
      • Packed shipping weight
        Confirmed after final packing
        Approx. 1.60 kg
      • HS / customs code
        Indicative HS code 85371091
        Final destination-specific classification requires customs confirmation
      • Country of origin
        Sweden
        Confirmed from ABB product documentation
      • Ships from
        Xiamen, Fujian, China
        Dispatch location confirmed in the written quotation
      • Customs documents
        Confirmed for the destination
        Available document scope stated in the written quotation
      PRODUCT & ORDER FAQS

      Questions buyers ask about PM891K01 3BSE053241R1

      • How should buyers confirm the full PM891K01 3BSE053241R1 order code?

        Confirm PM891K01 3BSE053241R1, ABB article number 3BSE053241R1, the PM891 designation, kit contents and all nameplate markings. If any label is unclear, provide close photos before quotation.

      • Which system checks are essential for PM891K01 3BSE053241R1?

        Compatibility depends on the installed 800xA or Compact Control Builder version, CPU redundancy arrangement, CEX-Bus and ModuleBus layout, memory requirement and the exact 3BSE053241R1 identity.

      • What control duty is assigned to PM891K01 3BSE053241R1?

        PM891K01 3BSE053241R1 is the documented 450 MHz, 256 MB processor unit for the stated ABB AC 800M configuration. Its controller role must be confirmed against the project hardware definition.

      • What needs documenting before a PM891K01 3BSE053241R1 exchange?

        Back up the control application and hardware configuration; record firmware, Ethernet settings, serial links, CEX-Bus modules, ModuleBus clusters, power feeds and the redundant partner before removal.

      • Can Moore Automated verify a quantity of PM891K01 3BSE053241R1?

        Yes. Moore Automated checks the requested quantity, complete PM891K01 3BSE053241R1 / 3BSE053241R1 identity and the required condition before confirming availability in writing.

      • Which warranty details accompany PM891K01 3BSE053241R1?

        Moore Automated provides a one-year warranty for the offered PM891K01 3BSE053241R1. The quotation records unit condition, identification, coverage and claim requirements.

      • What information supports shipment of PM891K01 3BSE053241R1?

        Provide quantity, receiving country, postal code and required date. Because the unit contains or is supplied with a lithium backup battery where documented, the packing and carrier method are confirmed before dispatch.

      • Which manufacturer source covers PM891K01 3BSE053241R1?

        Technical verification uses ABB AC 800M controller data, the official processor-unit listing and article number 3BSE053241R1. Final suitability is checked against the installed unit and system records.
      All FAQ
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          WHY BUYERS WORK WITH MOORE AUTOMATED

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          • Documentation available

            Product photos, packaging photos, certificates and datasheets can be provided when available.

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            Condition, warranty, lead time, included items and shipping terms are stated clearly in writing.

          • 20+ years of experience

            Over 20 years of experience in industrial automation and hard-to-source legacy parts.

          • Product Lifecycle Stage

            Active / Available from OEM

            ABB lists PM891K01 as an active high-performance AC 800M processor unit. Moore Automated supplies verified ABB processor units and controller spares; PM891 identity, power demand, CEX-Bus/ModuleBus limitations, software and redundant hardware are checked to reduce downtime.

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          Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.

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