China Fully Isolated HART to RS485 Gateway MODBUS-RTU Converter SM101-W - Top China Suppliers & Factory Solution Supplier, Factory

The SM101-W series HART smart converter is an advanced product featuring an ARM microprocessor and a HART protocol modem chip, developed through extensive practical experience. Designed to meet industrial standards, this converter offers exceptional reliability and stability. With a standard RS485 interface and a built-in gateway, it enables seamless data transmission with HART-compliant intelligent instruments. Additionally, it can convert data to MODBUS_RTU or MODBUS_TCP protocols, ensuring real-time data communication. As a leading China supplier, our factory guarantees top-notch quality and performance in every device, making it an ideal choice for industrial applications.

Product Description

Product Specifications

The HART protocol uses the Bell202 Frequency Shift Keying (FSK) standard to superimpose a modulated digital signal on a 4 to 20 mA basis. This allows bidirectional data communication without interfering with the 4 to 20 mA analog signal. The SM101 series intelligent converter is designed to modulate and demodulate digital and analog signals in both directions efficiently.

Key Features

Standard RS485 interface and gateway for easy parameter configuration and baud rate adjustment, independent of HART bus speed.

Industrial universal module shell design, optimized for convenient rail installation and commissioning.

Dedicated configuration software support for seamless communication with HART protocol intelligent instruments.

Full compatibility with standard MODBUS_RTU and MODBUS_TCP industrial protocols.

Supports simultaneous connection of multiple HART protocol instruments with individual channel isolation.

High-speed data processing: 0.8 seconds update time per set; 3.2 seconds for four sets of instruments.

Technical Parameters

Power Supply
DC 12 ~ 24 V
Ripple ≤ 200 mA, Current 100mA
Dimensions
75 mm × 80 mm × 41 mm
Operating Temp
-20 ℃ to + 80 ℃
Relative Humidity
10% ~ 80%

Frequently Asked Questions

QHow does the SM101 converter handle data transmission?

The converter uses the Bell202 FSK standard to superimpose digital signals onto the 4-20mA analog signal, ensuring bidirectional communication without signal interference.

QWhich protocols are compatible with this device?

The SM101 series fully supports standard industrial protocols, including MODBUS_RTU and MODBUS_TCP, alongside the HART protocol.

QCan I connect multiple instruments at once?

Yes, it supports multiple simultaneous HART instrument connections. Each channel is isolated to prevent impact on individual instrument current outputs.

QWhat is the typical data refresh rate?

The data update time is 0.8 seconds for one set of instruments. For a configuration of four sets, the data refreshes in approximately 3.2 seconds.

QWhat are the installation and power requirements?

It requires a DC 12-24V power source. For mounting, it supports both standard industrial rail installation and fixed bolt installation.

QIs special software required for configuration?

Yes, the converter comes with specialized configuration software to manage parameters and facilitate communication with HART-compatible instruments.

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