12P2843X022
May 20, 2026

12P2843X022

Emerson 12P2843X022 (KJ3244X1-BA1) Brand: Emerson (Emerson, Fisher-Rosemount) Series: DeltaV DCS System Series 2 Communication Module Model: 12P2843X022 (Part Number) = KJ3244X1-BA1 (Product Model) Category: DeviceNet Master Station Communication Card Alternative Name: DeltaV DeviceNet Interface Card, Fieldbus Communication Module Model Interpretation 12P2843X022: Emerson internal material number KJ3244X1-BA1: Standard model KJ3244: DeviceNet Communication Card Series X1: Hardware version BA1: Series 2, DeviceNet Master Station

Description

Basic Information

Manufacturer: Emerson Process Management

Origin: USA / Thailand

Dimensions: 51 × 152 × 127 mm (2" × 6" × 5")

Weight: Approximately 0.2 kg

Installation: DeltaV M series I/O backplane, hot-swappable

Status: In service, mainstream spare parts

Certifications: CE, UL/CSA, Class I Div.2 explosion-proof

Functionality

DeltaV system DeviceNet master station communication module

As the master station connecting DeviceNet slave station devices (frequency converters, remote I/O, sensors, valve islands, etc.)

Realizing data interaction between DeltaV and third-party DeviceNet devices, reducing hard wiring

Supporting online configuration, diagnosis and hot-swappable, maintenance without downtime

Single card independent operation, can be redundantly configured to improve reliability

Core parameters

Communication protocol: DeviceNet (CAN-based)

Site capability: Master station, up to 63 slave station nodes

Baud rate: 125 / 250 / 500 kbps (optional)

Network power supply: External 24VDC power supply (bus current ≤ 8A)

Module power supply: 12VDC (local bus, approximately 600mA)

Data mapping: I/O data, parameters, diagnostic information automatically mapped to DeltaV

Isolation: Electrical isolation between bus and system side

Operating temperature: -40°C to +70°C

Status indicators: Module operation, network status, fault LED

Adaptor accessories

Special terminals / connectors: DeviceNet bus connector (5 pins)

Backplane: DeltaV M series I/O backplane

Network cable: DeviceNet dedicated shielded twisted pair

Terminal resistor: 121Ω, one at each end of the bus

Typical applications

Factory automation: Connecting frequency converters, soft starters, motor protection devices

Logistics / packaging: Connecting remote I/O, valve islands, sensors

Process industry: Integrating with third-party DeviceNet instruments, actuators

System upgrade: Replacing old System DeviceNet interface, retaining existing equipment


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