Emerson KJ3244X1-BA1

Emerson KJ3244X1-BA1

Product Overview:
The KJ3244X1-BA1 is a DeviceNet interface/gateway module in the Emerson DeltaV S-Series (Series 2) family. It serves as the interface between the DeltaV controller and the DeviceNet fieldbus, enabling the DeltaV system to directly read and write DeviceNet bus devices such as inverters, motor starters, remote I/O, sensors, and actuators. This is not a standard local I/O card but a fieldbus communication gateway.

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Description

Emerson KJ3244X1-BA1

Technical Specifications:

  • Brand: Emerson (DeltaV S-Series)
  • Model: KJ3244X1-BA1 (Part Number: 12P2843X022)
  • Product Type: DeviceNet Interface Module / Gateway
  • System Platform: Emerson DeltaV DCS
  • Communication Protocol: DeviceNet (Master, CAN-based)
  • Bus Interface: DeviceNet standard 5-pin terminal
  • Local Bus Power: 12 VDC, 600 mA
  • DeviceNet Side Power: 24 VDC, 40 mA (bus power supply)
  • Operating Temperature: -40°C to +70°C
  • Vibration/Shock: 1 mm (5-16 Hz); 10g 11 ms half-sine wave
  • Humidity: 5-95% RH (non-condensing)
  • Protection Rating: IP20 (indoor cabinet)
  • Explosion-proof Certification: ATEX II 3G, IECEx, FM (Class I Div 2)
  • Origin: United States
  • Installation: Rack mounting

Functional Features:

  • DeviceNet Master Station: Manages slave devices on the entire DeviceNet bus
  • Redundancy Support: Supports dual-machine redundancy with automatic failover in case of fault
  • Hot-swappable: Can be replaced online without affecting system operation
  • Built-in Diagnostics: Communication status, bus fault, and I/O fault indicator lights
  • Wide Temperature and High Anti-interference: Suitable for harsh field environments such as petrochemical, chemical, power, and water treatment industries
  • Onboard Discrete I/O: Built-in 8-16 discrete input/output channels (configurable as DI/DO)
  • Gateway Function: Enables DeltaV controller to directly communicate with DeviceNet devices including inverters, motor starters, remote I/O, sensors, and actuators
  • CAN-based Protocol: Uses DeviceNet protocol with CAN底层 for reliable communication

Application Scenarios:

  • Connection of DeviceNet field devices (inverters, motor starters, remote I/O) to DeltaV DCS systems
  • Petrochemical industry automation
  • Chemical process control
  • Power plant automation
  • Water treatment industry automation
  • Manufacturing automation requiring DeviceNet communication

Performance Parameters:

  • Communication Protocol: DeviceNet (Master)
  • Local Bus Power: 12 VDC, 600 mA
  • DeviceNet Side Power: 24 VDC, 40 mA
  • Operating Temperature: -40°C to +70°C
  • Vibration Resistance: 1 mm (5-16 Hz); 10g 11 ms half-sine wave
  • Humidity: 5-95% RH (non-condensing)
  • Protection Rating: IP20
  • Certifications: ATEX II 3G, IECEx, FM (Class I Div 2)

Material Composition:

  • Industrial-grade PCB circuit board
  • DeviceNet communication circuit (CAN-based)
  • Power supply circuit
  • Signal processing circuit
  • Discrete I/O circuit
  • Signal isolation circuit
  • High-quality components
  • Standardized module housing

Structural Features:

  • Modular structure
  • DeltaV S-Series control bus backplane interface
  • DeviceNet communication port (5-pin terminal)
  • Status LED indicators (OK, TX/RX, Fault)
  • Discrete I/O terminal block (DI/DO, common terminal, ground)
  • Power supply terminals
  • Signal isolation circuit

Working Principle:
The KJ3244X1-BA1 acts as a DeviceNet master station, connecting the DeltaV controller to the DeviceNet fieldbus. It receives control commands from the DeltaV controller via the S-Series control bus backplane, converts them into DeviceNet protocol messages, and transmits them to slave devices on the DeviceNet bus. Conversely, it collects data from DeviceNet slave devices (inverters, motor starters, remote I/O, sensors, actuators) and sends it back to the controller for processing. The module also provides 8-16 discrete I/O channels for local signal acquisition and output. Built-in diagnostics continuously monitor communication status, bus faults, and I/O conditions.

Installation Requirements:

  • Install in the corresponding slot of the DeltaV S-Series rack
  • Ensure good contact between the module and the backplane connector
  • Connect DeviceNet communication cables according to the 5-pin terminal markings
  • Ensure proper shielding and grounding of DeviceNet cables to reduce interference
  • Verify that the local bus power supply meets the module requirements (12 VDC, 600 mA)
  • Verify that the DeviceNet side power supply meets requirements (24 VDC, 40 mA)
  • Follow DeviceNet wiring standards for cable termination and topology

Usage Precautions:

  • Confirm that the module model matches the DeltaV S-Series system configuration
  • Regularly check the module operating status and indicator lights (OK, TX/RX, Fault)
  • Follow DeviceNet wiring specifications and ensure device compatibility
  • Ensure input signals are within the allowable range of the module
  • The module supports hot-swapping; however, follow proper procedures for online replacement
  • Regularly check the connection status of terminal blocks
  • Pay attention to cable shielding to prevent electromagnetic interference
  • Verify hazardous area certifications match the installation environment (ATEX II 3G, IECEx, FM Class I Div 2)
  • Utilize built-in diagnostics for regular communication status and bus fault monitoring
  • Note: This is a DeviceNet interface/gateway module with some DI/DO, not a pure output card like KJ3204X1-BA1

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