EMERSON KJ221X1-BA1
EMERSON KJ221X1-BA1
EMERSON KJ221X1-BA1
EMERSON KJ221X1-BA1

EMERSON KJ221X1-BA1 | DeltaV Controller

  • Brand:​ Emerson
  • •
    Model:​ KJ221X1-BA1
  • •
    Product Type:​ Process Controller (CPU Module)
  • •
    Series:​ DeltaV™ S-series with Electronic Marshalling (CHARMs)
  • •
    Core Function:​ Serves as the central processing unit for a Emerson’s DeltaV Distributed Control System (DCS) station, executing regulatory control, logic, and sequencing functions for process automation.
  • •
    Key Specs:​ High-performance processor, supports Electronic Marshalling (CHARMs), redundant configuration support.
Get a Quote
Manufacturer:
Part number: EMERSON KJ221X1-BA1
Our extensive catalogue, including : EMERSON KJ221X1-BA1 , is available now for dispatch to the worldwide.

Description

KJ221X1-BA1: Product Overview
The EMERSON KJ221X1-BA1 is a central controller module for Emerson’s modern DeltaV™ S-series Distributed Control System (DCS) with Electronic Marshalling. This controller is the brain of a DeltaV station, responsible for executing control strategies (continuous, batch, and logic) that automate industrial processes. It interfaces with I/O modules—specifically, the CHARM (Characterization Module) I/O cards—via a high-speed backplane to read process variables from field instruments and write output signals to final control elements.
The controller is designed for the innovative DeltaV Electronic Marshalling architecture, which eliminates traditional marshalling cabinets and reduces wiring by allowing any I/O type (e.g., AI, AO, DI, DO) to be assigned to any channel on a CHARM I/O card via software configuration. This provides tremendous flexibility and significantly reduces installation and commissioning time. The controller runs the DeltaV real-time operating system and application code, providing deterministic performance essential for precise process control.

EMERSON KJ221X1-BA1

EMERSON KJ221X1-BA1

KJ221X1-BA1: Technical Specifications
  • •
    Model Number:​ KJ221X1-BA1
  • •
    Manufacturer:​ Emerson
  • •
    Product Type:​ Process Controller (CPU)
  • •
    Compatible System:​ DeltaV S-series with CHARM I/O
  • •
    Processor:​ High-performance processor
  • •
    Memory:​ Extensive application memory with battery backup
  • •
    I/O Communication:​ Interfaces with CHARM I/O bases via a high-speed backplane
  • •
    Network Communication:
    • •
      DeltaV Network:​ Ethernet for communication with operator stations and other controllers.
    • •
      Plant Network:​ Optional interface for integration with higher-level systems.
  • •
    Redundancy:​ Supports 1:1 hot-standby redundancy (requires a second KJ221X1-BA1 controller)
  • •
    Power Supply:​ Powered by the DeltaV power supply module in the chassis
  • •
    Operating Temperature:​ 0°C to 60°C (32°F to 140°F)
  • •
    Certifications:​ cULus, ATEX, IECEx for hazardous locations

    EMERSON KJ221X1-BA1

    EMERSON KJ221X1-BA1

Core Features & Customer Value
The primary value of this controller is its role in the DeltaV Electronic Marshalling system, which drastically reduces wiring, engineering, and commissioning costs. For system integrators, this means unparalleled flexibility—field signals can be changed or added late in the project without rewiring, simply by reconfiguring the software. This de-risks projects and accelerates startup.
The controller’s high-performance processor​ ensures fast and deterministic execution of complex control algorithms, which is critical for maintaining product quality, safety, and efficiency in continuous processes. Support for hot-standby redundancy​ guarantees high availability for critical applications, with automatic failover preventing unplanned downtime. The integration with the broader DeltaV ecosystem provides advanced features like built-in diagnostics, cybersecurity protocols, and seamless data exchange for plant-wide optimization.
Typical Applications
In a pharmaceutical batch process, the KJ221X1-BA1 executes complex recipes, managing precise sequences for charging reactants, controlling temperature and pressure in reactors, and ensuring compliance with regulatory standards (e.g., FDA 21 CFR Part 11).
In a continuous chemical process, it performs regulatory control for distillation columns or reactors, executing advanced control strategies to maximize yield and energy efficiency while ensuring safe operation within design limits.

Related products