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      ABB CI845
      ABB CI845

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      Ethernet Fieldbus Communication Interface module

      CI845

      Spare Part Number

      PN3BSE075853R1

      Product Information:

      ABB identifies CI845, article 3BSE075853R1, as an Ethernet FCI module that connects S800 I/O or Select I/O to AC 800M controllers. It supports single/redundant use, HART pass-through, Sequence of Events and hot swap. Use it as the engineered Ethernet FCI between AC 800M and the connected I/O station. Match 3BSE075853R1, TU860/TU865 base, TC810 adapters, single or redundant topology, 24 V supplies, firmware and controller configuration.

      Product image is representative; revision or series may vary. Contact us to request a specific version.
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        • PRODUCT OVERVIEW

          What is this product?

          ABB CI845 is documented as a Ethernet Fieldbus Communication Interface module for ABB Select I/O and S800 I/O. ABB identifies CI845, article 3BSE075853R1, as an Ethernet FCI module that connects S800 I/O or Select I/O to AC 800M controllers. It supports single/redundant use, HART pass-through, Sequence of Events and hot swap. Match 3BSE075853R1, TU860/TU865 base, TC810 adapters, single or redundant topology, 24 V supplies, firmware and controller configuration.

          Official source

          ABB CI845 data sheet dated 2026-02-10. Exact article, Ethernet FCI role, 19.2–30 V input, 5 W dissipation and supported diagnostics/features.
        • APPLICATIONS

          Where it may be used

          Use it as the engineered Ethernet FCI between AC 800M and the connected I/O station. Verify mechanical keying, power voting, Ethernet paths and the configured I/O cluster before insertion. Confirm FCI state, redundancy, HART/SOE services, I/O communication, power supervision and temperature diagnostics.

          Ethernet FCI bridge

          Carries the configured I/O station data to the AC 800M controller.

          S800 and Select I/O

          Supports either documented I/O family through the engineered cluster.

          Redundant operation

          Uses two CI845 modules and the matching base/adapter arrangement when required.

          Integrated diagnostics

          Reports communication, hardware, power and cabinet-temperature supervision.
      Technical specifications for

      CI845

      0 TECHNICAL PARAMETERS
      • Manufacturer:
        ABB
      • Product Category:
        DCS Systems
      • Spare Part Number:
        3BSE075853R1
      • Type:
        Ethernet FCI module
      • Connects:
        S800 I/O or Select I/O to AC 800M
      • Communication Protocol:
        Ethernet
      • Input Voltage Range:
        19.2–30 V DC
      • Power Dissipation:
        5 W
      • HART:
        Supported
      • Sequence of Events:
        Supported
      • Redundancy:
        Supported
      • Hot Swap:
        Supported
      • Stock Availability:
        8
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      Alternative Names

      CI845 CI845 3BSE075853R1 3BSE075853R1

      Information

      Overview Manuals Ethernet FCI Role Redundant Hardware I O Service Test

      Features:

      • ABB identifies CI845, article 3BSE075853R1, as an Ethernet FCI module that connects S800 I/O or Select I/O to AC 800M controllers. It supports single/redundant use, HART pass-through, Sequence of Events and hot swap.
      • Match 3BSE075853R1, TU860/TU865 base, TC810 adapters, single or redundant topology, 24 V supplies, firmware and controller configuration.
      • Confirm FCI state, redundancy, HART/SOE services, I/O communication, power supervision and temperature diagnostics.

      CI845 must be selected from the complete manufacturer identity and the receiving-system evidence. Use it as the engineered Ethernet FCI between AC 800M and the connected I/O station. Verify mechanical keying, power voting, Ethernet paths and the configured I/O cluster before insertion.

      Official source: ABB CI845 data sheet dated 2026-02-10. Exact article, Ethernet FCI role, 19.2–30 V input, 5 W dissipation and supported diagnostics/features.
      CI845 official technical documentation and related ABB resources.Important Notice: Confirm the complete article number and installed configuration before replacement. Each link opens in a new page.

      CI845 provides the Ethernet FCI link between AC 800M and S800 or Select I/O.

      Two CI845 modules require the matching TU860/TU865 and TC810 arrangement.

      Verify configured modules, HART, SOE, power diagnostics and failover after replacement.

      Technical notes

      CI845 must be controlled by its complete identity. Exact article, Ethernet FCI role, 19.2–30 V input, 5 W dissipation and supported diagnostics/features. Verify mechanical keying, power voting, Ethernet paths and the configured I/O cluster before insertion. Confirm FCI state, redundancy, HART/SOE services, I/O communication, power supervision and temperature diagnostics.

      CI845 Data Services

      CI845 provides the Ethernet FCI path and supports HART pass-through and Sequence of Events in the documented configuration. Confirm controller software, FCI firmware and I/O database compatibility before exchange.

      Power and Redundancy

      The module operates from 19.2–30 V DC and dissipates 5 W. In redundant service, prove both incoming supplies, voting and supervision, then confirm primary/backup state and a controlled failover without I/O loss.

      Customs & shipping dimensions / weight

      • Packed shipping dimensions
        Confirmed after final packing
        30 × 135 × 121.7 mm module size
      • Packed shipping weight
        Confirmed after final packing
        0.225 kg listed item weight
      • HS / customs code
        Preliminary HS heading 8517.62
        Confirm destination-country classification before shipment.
      • Country of origin
        Not officially confirmed
        Verify against the supplied item nameplate or certificate of origin.
      • Ships from
        Xiamen, Fujian, China
        Dispatch location is confirmed in the written quotation.
      • Customs documents
        Confirmed for the destination
        Available document scope is stated in the written quotation.
      PRODUCT & ORDER FAQS

      Questions buyers ask about CI845

      • How is the exact CI845 identified?

        ABB identifies CI845, article 3BSE075853R1, as an Ethernet FCI module that connects S800 I/O or Select I/O to AC 800M controllers. It supports single/redundant use, HART pass-through, Sequence of Events and hot swap. Use every printed article, suffix and revision together.

      • What must match before installing CI845?

        Match 3BSE075853R1, TU860/TU865 base, TC810 adapters, single or redundant topology, 24 V supplies, firmware and controller configuration.

      • What technical role does CI845 perform?

        Use it as the engineered Ethernet FCI between AC 800M and the connected I/O station.

      • Which preparation is required before replacing CI845?

        Verify mechanical keying, power voting, Ethernet paths and the configured I/O cluster before insertion.

      • How should CI845 be commissioned?

        Confirm FCI state, redundancy, HART/SOE services, I/O communication, power supervision and temperature diagnostics.

      • Which source supports the listed CI845 information?

        ABB CI845 data sheet dated 2026-02-10. Exact article, Ethernet FCI role, 19.2–30 V input, 5 W dissipation and supported diagnostics/features.

      • Are unverified nearby-model specifications used for CI845?

        No. Values that cannot be tied to the complete CI845 identity are withheld rather than copied from a visually similar product.

      • What ordering evidence should be supplied for CI845?

        Provide the required quantity, clear nameplate photographs, the receiving equipment identity, installed revision and delivery destination so the exact supply scope can be confirmed.
      All FAQ
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            Moore Automated verifies the supplied condition, included items and installed-system match against the complete manufacturer identity.

            The replacement must be commissioned with the checks listed in the technical sections.

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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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