Product Overview

The Emerson KJ2003X1-BB1 (Part Number 12P3439X012) is a high-performance MD Plus Controller engineered for the DeltaV™ distributed control system (DCS). This module serves as the computational heart of the control network, executing complex logic and managing communication between I/O subsystems and the plant network. Although discontinued by the manufacturer as of late 2018, it remains a critical component for maintaining and expanding existing DeltaV SIS™ and process safety installations.

The MD Plus variant is specifically designed to handle demanding processing tasks with increased memory capacity and faster execution cycles compared to standard controllers. It facilitates seamless integration of HART pass-through, Foundation Fieldbus, and Ethernet-based communication protocols, ensuring that real-time process data is accurately processed and transmitted to the operator interface.

Technical Characteristics and Functions

• Advanced Logic Execution: Capable of running sophisticated control strategies, including analog control, batch sequencing, and safety instrumented functions within the DeltaV environment.

• System Compatibility: Fully integrated with DeltaV SIS™ process safety systems, providing a unified architecture for both basic process control and safety applications.

• Redundancy Support: Supports redundant configurations to ensure high availability and prevent single points of failure in mission-critical industrial processes.

• Ruggedized Design: Built to operate reliably in harsh industrial settings, featuring a compact form factor that mounts easily on the DeltaV horizontal carrier.

• Communication Interface: Utilizes high-speed Ethernet ports for redundant control network connectivity and specialized internal buses for local I/O communication.

Technical Specifications

• Manufacturer: Emerson Process Management

• Model Number: KJ2003X1-BB1

• Order Number: 12P3439X012

• Module Type: MD Plus Controller

• Input Voltage: 24 VDC

• Current Draw: 0.25A typical

• Dimensions: 4.4 cm x 10.8 cm x 12.7 cm

• Weight: 0.2 kg

• Origin: United States

• HS Code: 8537101190

Industrial Applications

• Chemical and Petrochemical: Managing complex reaction loops and safety shutdowns.

• Power Generation: Coordinating boiler controls and turbine monitoring systems.

• Oil and Gas: Remote terminal unit (RTU) management and pipeline pressure regulation.

• Pharmaceutical: Batch processing and compliance-ready automation.