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

Introducing the SM101-W series HART smart converter, a cutting-edge product developed in China by experienced suppliers and manufacturers. This advanced converter utilizes an ARM microprocessor and HART protocol modem chip, ensuring exceptional reliability and stability tailored to meet industrial standards. The intelligent converter features a standard RS485 interface and gateway, allowing for seamless data transmission with HART-compatible intelligent instruments. It also facilitates conversion to MODBUS RTU/MODBUS TCP protocols, enabling efficient data reading and real-time transmission. Trust in our factory’s commitment to quality and innovation for your industrial 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 100mA)

Shell Size

75 mm × 80 mm × 41 mm

Working Temp

-20 ℃ ~ + 80 ℃

Relative Humidity

10% ~ 80%

Frequently Asked Questions

What communication protocols does the SM101 series intelligent converter support?

The SM101 series intelligent converter supports standard MODBUS_RTU and MODBUS_TCP protocols, enabling seamless integration into various industrial networks.

How does the converter handle multiple HART protocol instruments?

It supports simultaneous connection of multiple HART protocol intelligent instruments. Crucially, each HART channel is electrically isolated from the others, ensuring that the instrument current output remains unaffected.

What is the data update frequency for connected devices?

The data update time is 0.8 seconds for a single connected set. When multiple devices are configured, the update time scales linearly (for example, taking 3.2 seconds if four sets are connected).

What are the power supply specifications and operating environments?

The converter requires a DC 12 ~ 24 V input voltage (ripple ≤ 200 mA, current 100 mA). It operates reliably in temperatures ranging from -20 ℃ to +80 ℃ and relative humidity between 10% and 80%.

How is the SM101 converter physically installed?

Designed with an industrial universal module shell, the device supports standard DIN rail installation or fixed-mount installation, making commissioning simple and convenient.