Emerson DeltaV KJ Series Modules: KJ3002X1-BA1 12P0680X122 Analog Input Module

Technical Dossier

Product Details And Specifications

Emerson DeltaV KJ Series Technical Notes

The Emerson DeltaV KJ Series represents the primary I/O subsystem architecture deployed across global heavy industry installations, including petrochemical complexes, nuclear power facilities, offshore platforms, and crude oil refineries. Introduced as the field I/O backbone of the DeltaV distributed control system, KJ-series modules are mounted on DeltaV I/O carriers and communicate via the DeltaV I/O bus to the controller subsystem. The series is characterized by its HART-enabled analog channels, intrinsic safety options, and hot-swap capability — attributes that have made it the default I/O standard in facilities operating under IEC 61511 functional safety requirements. Installed base estimates place KJ-series hardware in tens of thousands of process units worldwide, with a significant proportion of installations dating from the late 1990s through the 2010s now entering the long-term maintenance and lifecycle extension phase.

The Evolution of DeltaV KJ Series Architecture

The DeltaV KJ Series was introduced alongside the original DeltaV system platform in the mid-1990s, designed to replace proprietary I/O wiring schemes with a standardized, bus-based field I/O architecture. Early-generation KJ modules used 8-channel analog configurations with basic HART pass-through. Subsequent hardware revisions introduced 16-channel density, dual-channel redundancy options, and enhanced diagnostics compliant with NAMUR NE107. The KJ3002 family (analog input) and KJ3222 family (analog output) became the most widely deployed module types across the installed base.

Compatibility across DeltaV hardware generations is managed through the DeltaV I/O carrier system. KJ-series modules are physically and electrically compatible with Series 2 carriers (8-slot and 4-slot) and require DeltaV controller firmware at or above the version specified in the module's product data sheet. Modules from the original KJ generation are not directly interchangeable with the newer Electronic Marshalling (CHARM) architecture introduced in DeltaV v12, though parallel operation within the same DeltaV system is supported. Facilities running DeltaV v7.x through v11.x are the primary consumers of KJ-series spare parts in the current market.

DeltaV KJ Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked components within the Emerson DeltaV KJ Series. Modules are classified by functional category.

Analog Input (AI) Modules

• KJ3002X1-BA1 12P0680X122: 8-ch HART-enabled 4–20 mA analog input, standard density
• KJ3002X1-BB1: 8-ch analog input module, revision B carrier interface
• KJ3002X1-BC1: 8-ch analog input, enhanced diagnostics firmware variant
• KJ3221X1-BA1: 16-ch analog input, high-density HART-enabled
• KJ3221X1-BB1: 16-ch analog input, revision B, extended temperature range

Analog Output (AO) Modules

• KJ3222X1-BA1: 8-ch HART-enabled 4–20 mA analog output module
• KJ3222X1-BB1: 8-ch analog output, revision B carrier interface
• KJ3222X1-BC1: 8-ch analog output, enhanced loop diagnostics

Digital Input (DI) Modules

• KJ3001X1-BA1: 8-ch 24 VDC digital input, standard density
• KJ3001X1-BB1: 8-ch digital input, revision B, improved noise immunity
• KJ3211X1-BA1: 16-ch 24 VDC digital input, high-density
• KJ3211X1-BB1: 16-ch digital input, revision B

Digital Output (DO) Modules

• KJ3212X1-BA1: 16-ch 24 VDC digital output, high-density
• KJ3212X1-BB1: 16-ch digital output, revision B

Controller & Communication Modules

• KJ2003X1-BA1: DeltaV MD-series controller module, primary CPU
• KJ2003X1-BB1: DeltaV MD controller, revision B, expanded memory
• KJ2005X1-BA1: DeltaV SD-series controller, standard density CPU
• KJ2005X1-BB1: DeltaV SD controller, revision B
• KJ2005X1-BC1: DeltaV SD controller, revision C, enhanced diagnostics

Power Supply Modules

• KJ4001X1-BA1: DeltaV I/O power supply, 24 VDC, standard rail mount
• KJ4001X1-BB1: DeltaV I/O power supply, revision B, improved ripple rejection

Sourcing Hard-to-Find & Obsolete DeltaV KJ Series Parts

A substantial portion of the DeltaV KJ Series has transitioned to RFQ availability review or end-of-life status as Emerson has progressively migrated its installed base toward the CHARM and DeltaV CIOC architecture. For facilities operating DeltaV v7 through v11 systems, replacement KJ-series modules are no longer available through standard Emerson distribution channels in many regions, making third-party industrial spare parts suppliers the primary sourcing route.

Quality Control for the DeltaV KJ Series Range

DeltaV KJ-series modules present specific test challenges due to their integrated HART modem circuitry, I/O bus interface logic, and multi-channel analog front-end design. DriveKNMS applies a structured test protocol to all KJ-series units prior to dispatch:

Modules that fail any stage of this protocol are quarantined, documented, and not returned to saleable inventory.