Wholesale Industrial-grade HART to RS485 protocol converter, hart to modbus-rtu integrated display instrument SM200-A Suppliers, Factory

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Wholesale Industrial-grade HART to RS485 protocol converter, hart to modbus-rtu integrated display instrument SM200-A Suppliers, Factory

A high-tech device that combines RS232/RS485 communication with the HART protocol is the SM200-A HART data display instrument. The system is a tiny RTU. High-precision operational amplifiers, interface chips, hardware watchdog circuits, input and output circuits, etc. make up its core, which is a high-end ARM single-chip microprocessor. Additionally, it incorporates HART modulation and demodulation chips and communication modules, which have very high cost performance and consistent performance.

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Product Description

✓ Product Specifications

Communication Interfaces

Equipped with standard RS232 and RS485 communication interfaces, allowing for parameter configuration, baud rate adjustment, and parity setting. Independent of the 1200MHz communication speed on the HART bus.

Advanced Integration

Supports standard MODBUS_RTU protocol and various smart meters with special HART protocols. Custom reading instructions available for specialized meters.

User Interface

Equipped with 4-channel LED display for easy data reading and power failure memory function to retain parameters without manual resets.

⚙ Main Parameters

Dimensions	164 mm (L) × 102 mm (W) × 50 mm (H)
Power Input	DC 12～24V, or AC 220V
Analog Input	250Ω impedance; 4～20mA, 0～5V DC signals
HART Sampling	250Ω resistor
Environment	-20℃～+75℃; 10%～80% Relative humidity

★ Product Features

Enhanced SM200-A model with integrated screen display function.
Supports simultaneous dual output via RS232 and RS485 interfaces.
Configurable via dedicated configuration software for smart meter communication.

⬇ Resources & Documentation

SM200-A (En).exe - Configuration Software

SM200-A User Manual (PDF)

Application with KROHNE IF300 Instruments

Application with Rosemount Pressure Transmitter

Frequently Asked Questions

? Which instrument brands are compatible with the SM200-A?

The SM200-A HART modem supports communication with major domestic and international brands, including E+H, Rosemount, Yokogawa, and KROHNE.

? Does it support MODBUS protocols?

Yes, it fully supports the standard MODBUS_RTU protocol, facilitating easy integration into existing industrial control systems.

? Can I configure the baud rate for RS485/RS232?

Absolutely. The device allows for full parameter configuration including baud rate adjustment and parity settings, independent of the HART bus speed.

? What happens to settings during a power outage?

The instrument features a power failure memory function, ensuring all configured parameters are retained and automatically restored when power returns.

? What are the power supply options?

It supports a wide range of power inputs, typically DC 12–24V, with an AC 220V option available upon request.

? Can it handle non-standard HART instructions?

Yes, the SM200-A is designed to be flexible and can be customized to read specific instructions from specialized HART meters.

Product Detail

Wholesale Industrial-grade HART to RS485 protocol converter, hart to modbus-rtu integrated display instrument SM200-A Suppliers, Factory

Product Description

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Product Detail

Wholesale Industrial-grade HART to RS485 protocol converter, hart to modbus-rtu integrated display instrument SM200-A Suppliers, Factory

Product Description

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