Product Overview

The Emerson KJ4001X1-BA2, also identified by assembly numbers VE3051CO and 12P1562X012, is a specialized FOUNDATION™ Fieldbus H1 interface card designed for the DeltaV™ M-series I/O subsystem. This module acts as the digital communication gateway between the DeltaV controller and field-based smart devices, such as transmitters and valve positioners. By supporting true digital bus communication, the KJ4001X1-BA2 enables the transmission of multiple process variables and advanced diagnostic data over a single pair of wires. This card is fundamental for modernizing industrial plants that require high-density device integration, significantly reducing the wiring footprint while maximizing the information flow from the process floor to the control room.

Hardware Architecture and Engineering Specifications

• Model Identification KJ4001X1-BA2

• Part Numbers VE3051CO / 12P1562X012

• Protocol Support FOUNDATION™ Fieldbus H1 (31.25 kbit/s)

• System Family DeltaV™ M-series DCS

• Card Density Dual-port H1 interface supporting multiple devices per segment

• Power Management Optimized low-current consumption for high-efficiency I/O racks

• Physical Mass 0.22 kg

• Unit Dimensions 10.0 cm x 4.0 cm x 17.7 cm

• Diagnostics Real-time monitoring of segment voltage and device communication health

• Manufacturing Origin USA

• Tariff Code 8537101190

Industrial Networking Deployments

The KJ4001X1-BA2 Fieldbus Card is a critical asset for sites leveraging high-speed digital plant architectures:

Smart Instrumentation NetworksManaging multi-drop digital segments in petrochemical and chemical facilities, where a single card can communicate with a variety of pressure, temperature, and level transmitters on a digital bus.

Advanced Asset ManagementFacilitating the pass-through of AMS (Asset Management Solutions) data, allowing engineers to perform remote calibration and valve signature analysis without field intervention.

Predictive Maintenance FrameworksUtilizing the card's ability to extract status bits from field devices, enabling the control system to alert operators of impending instrument failures before they impact the process.

Greenfield and Expansion ProjectsReducing capital expenditure (CAPEX) by minimizing the requirement for traditional I/O termination cabinets, as the Fieldbus architecture allows for significantly less field wiring.

Legacy M-series SustenanceServing as a primary replacement for older revision Fieldbus cards in existing DeltaV installations, ensuring continued support for H1 segments in facilities operating under original M-series specifications.