Emerson DeltaV SX Modules

Technical Dossier

Product Details And Specifications

Emerson DeltaV SX Series: Comprehensive Module Range and Technical Overview

The Emerson DeltaV SX series represents a mature, field-proven distributed control system (DCS) platform deployed extensively across global heavy industry verticals including petrochemical refineries, nuclear power generation facilities, offshore oil & gas platforms, and large-scale chemical processing plants. The SX controller architecture — anchored by the SE3007 controller node — operates within the DeltaV digital automation system ecosystem, providing deterministic process control over redundant high-speed backplane buses. Installed base figures across North America, the Middle East, and Asia-Pacific make this series one of the most widely maintained legacy DCS platforms in active service. Long-term asset owners continue to source SX-series spare parts to extend plant operational life beyond original OEM support windows.

The Evolution of DeltaV SX Architecture

The DeltaV SX controller platform was introduced as part of Emerson's second-generation DeltaV architecture, succeeding the earlier S-series nodes and preceding the current DeltaV MD/SD/SQ/MQ controller family. The SX node introduced a 100 Mbps Ethernet-based control network backbone, replacing the earlier proprietary token-ring topology. Key architectural milestones include:

Generation 1 (SX baseline): SE3007 controller with 12P4688X052 carrier, supporting up to 100 I/O subsystem nodes per control network segment. Backplane communication via the DeltaV I/O bus at 2 Mbps. Compatible with Series 2 I/O cards (KJ3001, KJ3002, KJ3221 families).

Generation 2 (SX Enhanced): Firmware revisions introduced redundant controller pairing (primary/secondary failover <100ms), expanded diagnostics via AMS Device Manager integration, and HART pass-through on analog I/O subsystems.

Compatibility Constraints: SX controllers are not forward-compatible with DeltaV v14+ software without hardware migration. Plants running DeltaV v10–v13 represent the primary installed base for SX-series hardware. Mixing SX and MD/SQ controllers on the same control network requires careful version alignment of the DeltaV database and firmware.

Current Status: The SX series is classified by Emerson as a mature/end-of-active-development platform. Spare parts availability through OEM channels is limited. Third-party MRO suppliers and certified refurbishers represent the primary sourcing channel for ongoing maintenance.

DeltaV SX Full Catalog & Functionalities (SKU List)

Controllers & Carrier Assemblies

KJ2005X1-BK1: DeltaV SX controller module, primary node, 100 Mbps Ethernet control network interface.
12P4688X052: SX controller carrier board assembly, mounts KJ2005X1-BK1, provides backplane connectivity.
SE3007: DeltaV SX controller node assembly (complete unit), includes controller + carrier + firmware.
KJ2005X1-BA1: DeltaV SX controller module, earlier firmware revision, functionally equivalent to BK1 variant.
KJ2005X2-BK1: DeltaV SX redundant controller module, secondary/standby node for 1:1 redundancy pairs.

Analog Input (AI) Modules

KJ3001X1-BA1: 8-channel analog input module, 4–20 mA HART, Series 2 I/O subsystem.
KJ3001X1-BB1: 8-channel analog input module, 4–20 mA HART, updated conformal coating revision.
KJ3002X1-BA1: 8-channel analog input module, thermocouple/RTD, multi-sensor type selectable per channel.
KJ3002X1-BB1: 8-channel TC/RTD analog input, extended temperature range variant.

Analog Output (AO) Modules

KJ3221X1-BA1: 8-channel analog output module, 4–20 mA HART, Series 2 I/O subsystem.
KJ3221X1-BB1: 8-channel analog output, updated revision with enhanced short-circuit protection.

Digital Input (DI) Modules

KJ3101X1-BA1: 8-channel digital input module, 24 VDC, Series 2 I/O subsystem.
KJ3101X1-BB1: 8-channel DI, 120 VAC input voltage variant.
KJ3102X1-BA1: 16-channel digital input module, 24 VDC, high-density I/O subsystem.

Digital Output (DO) Modules

KJ3201X1-BA1: 8-channel digital output module, 24 VDC sourcing, Series 2 I/O subsystem.
KJ3201X1-BB1: 8-channel DO, relay contact output variant, 120/240 VAC rated.

Power Supply Modules

KJ4001X1-BA1: DeltaV I/O subsystem power supply, 24 VDC output, redundant-capable.
KJ4002X1-BA1: DeltaV SX controller power supply module, dedicated controller node power.

Communications & Network Adapters

KJ2003X1-BA1: DeltaV PROVOX migration interface module, legacy PROVOX I/O bus adapter.
KJ2004X1-BA1: DeltaV FOUNDATION Fieldbus H1 interface card, 2-segment, Series 2 subsystem.
KJ2004X1-BB1: FOUNDATION Fieldbus H1 interface, 4-segment variant, high-density fieldbus applications.

Sourcing Hard-to-Find & Obsolete DeltaV SX Parts

As the DeltaV SX series has entered the mature/end-of-active-support phase of its lifecycle, OEM channel availability for specific modules — particularly controller carriers (12P4688X052), legacy AI/AO revisions (BA1 suffix), and PROVOX interface cards (KJ2003X1-BA1) — has become inconsistent. DriveKNMS maintains a dedicated inventory of tested, refurbished, and new-surplus SX-series components to support plant maintenance teams operating on extended asset life strategies.

Services provided for obsolete DeltaV SX parts include: verified cross-reference matching between superseded and current part numbers; firmware version identification to ensure compatibility with installed DeltaV database versions (v10–v13); and documented traceability for regulated industries (nuclear, pharmaceutical) requiring material certification records. Requests for bill-of-materials (BOM) matching against existing plant spares lists are handled directly by the technical sales team.

Quality Control for the DeltaV SX Range

DeltaV SX modules present specific test challenges due to their integrated backplane bus communication architecture and HART pass-through circuitry. DriveKNMS applies the following test protocol to all SX-series inventory:

Controller Modules (KJ2005X1 family): Full power-on self-test (POST) verification; Ethernet port continuity and link negotiation test at 100 Mbps; firmware version readout and documentation; backplane connector pin integrity inspection under 10x magnification.

Analog I/O Modules (KJ3001, KJ3002, KJ3221 families): Channel-by-channel signal injection test across full 4–20 mA range; HART communication handshake verification on each channel; isolation resistance test between channel commons and chassis ground (>100 MΩ at 500 VDC).

Digital I/O Modules (KJ3101, KJ3201 families): Input threshold verification at rated voltage; output load switching test at rated current; LED indicator functional check.

Power Supply Modules: Output voltage regulation test under 25%, 50%, and 100% rated load; ripple and noise measurement; over-voltage protection trip point verification.

All tested units are documented with a test record sheet and shipped with ESD-protective packaging. Warranty terms are available on request.