Product Overview

The Emerson KJ2003X1-BK1, also identified by part number 12P4686X052, is a fundamental processing unit within the DeltaV™ S-series hardware platform. As an SD Plus Controller, this module provides the computational intelligence required to execute complex control strategies, manage I/O communication, and facilitate data integration across the Distributed Control System (DCS). It is engineered to provide high-speed execution for both continuous and batch control processes, ensuring deterministic performance for critical variables such as pressure, temperature, and flow.

The SD Plus Controller is specifically designed for scalability, allowing plants to expand their control capacity by adding controllers to the redundant DeltaV control network. By utilizing advanced onboard processing, the KJ2003X1-BK1 offloads communication tasks from the primary workstation, maintaining local control integrity even if higher-level network communication is interrupted. This makes it an essential component for high-availability sectors including pharmaceutical manufacturing, specialty chemicals, and upstream oil and gas operations.

System Integration and Communication Integrity

The 12P4686X052 features dual Ethernet ports to support redundant Control Network (CN) connections, ensuring that control data remains accessible in the event of a cable or switch failure. The "Plus" designation signifies enhanced memory and processing capabilities compared to standard legacy controllers, allowing for larger configuration databases and more intensive function block execution.

This module mounts securely on a standard S-series 2-wide controller carrier, which provides redundant power input connections. The hardware is physically hardened to meet G3 corrosive environment standards, ensuring long-term electronic stability in facilities where airborne contaminants are present. With its plug-and-play identification, the KJ2003X1-BK1 is automatically recognized by the DeltaV configuration software, significantly reducing commissioning time and simplifying hardware replacement procedures.

Technical Specifications

• Manufacturer: Emerson

• Model Number: KJ2003X1-BK1

• Part Number: 12P4686X052

• Module Type: SD Plus Controller

• System Range: DeltaV™ S-series / M-series Compatible

• Input Power: 24V DC via carrier backplane

• Power Dissipation: Approximately 5.0 Watts

• Redundancy: Supports 1:1 Hot-Standby redundancy

• Operating Temperature: -40°C to +70°C (-40°F to +158°F)

• Storage Temperature: -40°C to +85°C

• Relative Humidity: 5% to 95% (non-condensing)

• Weight: 0.3 kg

• Dimensions: 5.1 cm x 17.8 cm x 12.7 cm

Key Technical Characteristics

• Deterministic Control: Optimized for execution of sophisticated function blocks with fixed scan rates to ensure process stability.

• Cybersecurity Ready: Built-in features to protect against unauthorized network access and ensure the integrity of the control logic.

• Diagnostic Transparency: Real-time LED status indicators provide immediate visual feedback on controller health, active/standby status, and network activity.

• Native Redundancy: Designed for seamless switchover to a backup controller in less than one scan cycle, preventing process upsets during hardware transitions.