Description

Technical Overview

Emerson engineered the KJ3208X1-BA1 (Part Number 12P3904X022 / VE4002S1T1B1) to serve as a high-reliability Discrete Output (DO) module within the DeltaV™ M-series Distributed Control System (DCS). This 8-channel card manages isolated 24 VDC signals, allowing the control system to interface effectively with field-mounted solenoids, relays, and indicators. By utilizing dedicated isolation for each channel, the module prevents electrical noise and ground loops from compromising the integrity of the wider control network. Although Emerson officially discontinued the M-series on December 31, 2018, this card continues to provide essential logic control for existing automation infrastructures globally.

Performance Specifications

• Manufacturer: Emerson Process Management
• System Compatibility: DeltaV™ M-series I/O Subsystem
• Model Designations: KJ3208X1-BA1 / VE4002S1T1B1
• Ordering Number: 12P3904X022
• Output Type: 8-Channel Isolated Discrete Output
• Operating Voltage: 24 VDC Nominal
• Communication Support: Ethernet Router Service integration
• Physical Profile: 16.8 cm x 8.7 cm x 4.4 cm
• Unit Weight: 0.2 kg
• Standard Classification: HS Code 8537101190 (DCS Components)

Key Functional Advantages

Emerson incorporates advanced diagnostic capabilities into the KJ3208X1-BA1 to ensure continuous operation in mission-critical environments. The module actively monitors output states and internal health, which enables technicians to identify faults before they escalate into system-wide downtime. Furthermore, the isolated architecture protects the DCS backplane from field-side surges, thereby increasing the overall longevity of the carrier and adjacent modules.

The card features a modular “plug-and-play” design that simplifies the installation process on M-series I/O carriers. Consequently, facilities can perform hardware upgrades or replacements with minimal labor and configuration overhead. This flexibility proves especially beneficial in evolving industrial settings where scalability remains a priority.

Industrial Applications

The KJ3208X1-BA1 Discrete Output Card primarily controls final control elements in high-stakes industries including oil and gas refining, chemical manufacturing, and power generation. Because it manages high-speed switching tasks with precision, engineers rely on this module for time-sensitive logic operations. Moreover, the card’s rugged construction ensures it maintains peak performance even when exposed to the typical electromagnetic interference found in heavy industrial environments.