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Fully Isolated HART to RS485 MODBUS-RTU Converter SM101-W | China Suppliers & Factory Solutions

Introducing the SM101-W series HART Smart Converter, a cutting-edge solution developed by leading China suppliers, utilizing advanced ARM microprocessor technology and high-performance HART protocol modem chips. Designed with a focus on industrial reliability and stability, this intelligent converter seamlessly integrates into your system, The SM101-W features a standard RS485 interface and gateway, allowing for transparent data transmission with intelligent HART protocol instruments. Additionally, it is capable of converting data to MODBUS RTU/MODBUS TCP protocols, ensuring real-time data transfer for your applications. As a trusted factory in the industry, we are committed to providing you with high-quality solutions that meet your data communication needs

Product Details

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, allowing the HART protocol instrument to allow bidirectional data communication without interfering with the 4 to 20 mA analog signal. SM101 series intelligent converter is an intelligent converter which can modulate and demodulate digital signals and analog signals in both directions.

Product Features

Equipped with standard RS485 communication interface and gateway, it can configure parameters, change communication baud rate and parity check bit. It is independent of the 1200 communication speed on the HART bus, thus improving the operation speed of the whole system.
Adopt industrial universal module shell, which is convenient for installation and commissioning.
It is equipped with special configuration software, which can configure the parameters of SM101-W series intelligent converter, and can communicate with HART protocol intelligent instrument through the intelligent converter.
Supports standard MODBUS_RTU and MODBUS_TCP protocols.
Support simultaneous connection of multiple HART protocol intelligent instruments.
Each HART channel is in quarantine with each other without affecting the instrument current output.
Support a variety of special HART protocol intelligent instruments, and can customize the instructions for reading special HART instruments.
The data update time is 0.8 seconds for one set. If four sets are connected, the data will be updated in 3.2 seconds.
Installation method: standard rail installation or fixed installation.

Main Parameters

Power Supply DC 12 ~ 24 V, ripple ≤ 200 mA, current 100 mA

Shell Size 75 mm (L) × 80 mm (W) × 41 mm (H)

Working Temp -20 ℃ ~ + 80 ℃

Relative Humidity 10% ~ 80%

Frequently Asked Questions

What communication protocols do the SM101 series converters support?

The SM101 series intelligent converters fully support standard MODBUS_RTU and MODBUS_TCP protocols, enabling seamless integration with various industrial networks.

How does the converter improve system speed?

It features a standard RS485 communication interface and gateway to configure parameters, baud rates, and parity check bits. This design operates independently of the 1200 communication speed on the HART bus, significantly improving overall system speed.

Can multiple HART instruments be connected at the same time?

Yes, the converter supports simultaneous connection of multiple HART protocol intelligent instruments. Each HART channel is isolated from the others, ensuring that the current output of individual instruments is not affected.

What is the data update frequency for the converter?

The data update time is 0.8 seconds for a single set. If you connect four sets of instruments, the complete data cycle updates in approximately 3.2 seconds.

How is the SM101 converter installed?

The device is designed in an industrial universal module shell and supports standard rail installation or fixed installation, making commissioning quick and convenient.

What are the power supply requirements?

The converter requires a power supply input voltage of DC 12 ~ 24 V. The power supply ripple should not exceed 200 mA, and the working current is 100 mA.