EMERSON KJ3225X1-BA1
EMERSON KJ3225X1-BA1
EMERSON KJ3225X1-BA1
EMERSON KJ3225X1-BA1
EMERSON KJ3225X1-BA1

EMERSON KJ3225X1-BA1 | DeltaV I/O Electronic Marshalling Module

  • Brand:​ Emerson
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    Model:​ KJ3225X1-BA1
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    Product Type:​ I/O Module (CHARM Base)
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    Series:​ DeltaV™ S-series with Electronic Marshalling (CHARMs)
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    Core Function:​ Provides the interface between a CHARM (Characterization Module) and the DeltaV controller backplane, enabling flexible and simplified I/O configuration.
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    Key Specs:​ Electronic Marshalling, hot-swappable, supports any CHARM type.
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Part number: EMERSON KJ3225X1-BA1
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Description

KJ3225X1-BA1: Product Overview
The EMERSON KJ3225X1-BA1 is a critical component of the DeltaV S-series Electronic Marshalling system. It is a CHARM I/O Base​ or carrier module. Its primary function is to provide a slot that houses a single CHARM (Characterization Module) and serves as the intelligent interface between that CHARM and the DeltaV controller network.
This base module slides into a DeltaV I/O bank and connects to the system backplane. It provides power, communication, and physical mounting for the CHARM. The intelligence of the KJ3225X1-BA1 base allows it to automatically identify the specific type of CHARM (e.g., Analog Input, Digital Output, RTD) inserted into it and configure the communication accordingly. This design is the foundation of Electronic Marshalling, which eliminates traditional marshalling cabinets and hardwired jumpers, replacing them with software configuration for ultimate flexibility.

EMERSON KJ3225X1-BA1

EMERSON KJ3225X1-BA1

KJ3225X1-BA1: Technical Specifications
  • •
    Model Number:​ KJ3225X1-BA1
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    Manufacturer:​ Emerson
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    Product Type:​ CHARM I/O Base (Carrier Module)
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    Compatible System:​ DeltaV S-series with Electronic Marshalling
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    Function:​ Interface base for a single CHARM (Characterization Module)
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    CHARM Support:​ Accepts any CHARM type (AI, AO, DI, DO, RTD, etc.)
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    Hot-Swap Capable:​ Yes (supports online insertion and removal)
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    Communication:​ Interfaces with the DeltaV controller via the I/O bank backplane
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    Power Supply:​ Provided via the DeltaV I/O bank backplane
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    Status Indicators:​ LED indicators for power, communication, and fault status
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    Mounting:​ Installs in a DeltaV S-series I/O bank

    EMERSON KJ3225X1-BA1

    EMERSON KJ3225X1-BA1

Core Features & Customer Value
The core value of this module is its role in enabling Electronic Marshalling. This technology decouples the field wiring (which lands directly on the CHARM) from the system’s control strategy. This means that:
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    Flexibility:​ I/O types can be changed at any time by simply replacing the CHARM and reconfiguring the software in DeltaV Studio—no rewiring is necessary.
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    Reduced Engineering Time:​ Eliminates the need for complex wiring diagrams and cross-wiring in marshalling cabinets.
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    Late-Stage Changes:​ Project schedules are de-risked because field signal changes do not require physical rewiring, only a software change.
The hot-swap capability​ allows for maintenance or reconfiguration without shutting down the entire I/O bank, significantly increasing system availability and simplifying troubleshooting. For maintenance teams, the LED status indicators provide immediate visual feedback for quick diagnostics.
Typical Applications
In a new process plant, hundreds of KJ3225X1-BA1 bases are installed in I/O banks. During commissioning, if a signal type needs to be changed (e.g., from a 4-20mA Analog Input to a Digital Output), an engineer simply swaps the CHARM in the base and updates the software configuration, saving days of work.
In a plant expansion, new field devices can be integrated by adding new bases and CHARMs without disturbing the existing wiring, ensuring a smooth and efficient expansion process.

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