HMI – HART to MODBUS Interface (HART Indicator)

Short description: A rugged microcontroller-based HART to MODBUS interface that accepts up to 15 HART slave inputs and converts their process variables into fixed MODBUS registers for easy integration with SCADA/DCS systems.

Key Features

• Rugged, state-of-the-art microcontroller-based system.
• Accepts HART inputs from up to 15 slave instruments in multidrop mode.
• Converts HART variables into fixed MODBUS address registers (no configuration required).
• Direct digital acquisition of Flow, Pressure, Temperature, and other HART process values.
• User-friendly LCD messages showing HART slave values and status.
• Engineering units automatically acquired from HART slaves, reducing setup effort.
• User-selectable baud rate for MODBUS master via DIP switch.
• Isolated RS485 port (MODBUS master side) and isolated HART port (slave side).
• LED indications for MODBUS Tx/Rx and HART Tx/Rx/CD for easy diagnostics.
• Device information such as ID, manufacturer code, hardware/software version accessible via MODBUS.

Technical Specifications

• Inputs: HART signals from up to 15 slave devices
• Outputs: MODBUS RTU (floating point values of up to 4 variables per HART slave)
• Display: 16×2 character LCD showing variables, station ID, engineering units, and status
• Keyboard: 4-key tactile keypad for navigation and programming
• LED Indications: Tx/Rx for MODBUS master; Tx/Rx/CD for HART slaves
• Communication: MODBUS RTU over isolated RS485 (300–57600 baud)
• Isolation: Galvanic isolation between HART and RS485 ports
• Power Supply: 230 VAC / 110 VAC ±10%, 50 Hz, 1-phase
• Mounting: Panel mount, ABS molded white box
• Dimensions: Bezel: 96 × 96 mm (H × W); Depth: 150 mm; Cut-out: 92 × 92 mm
• Connections: Screw-type terminals for supply, RS485, and HART inputs

Support Videos

Downloads

• 📄 Product Manual (PDF)

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