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HART Smart Converter SM181-01-A: Reliable 4-20mA to RS485 Solution from China Suppliers & Factory

The SM181-01-A HART Smart Converter is a cutting-edge product developed in China, leveraging advanced ARM microprocessor technology and a HART protocol modem chip, combined with extensive practical experience. As a reliable and stable solution tailored for industrial applications, this intelligent converter meets the high standards required by today's market. It features a standard RS485 interface, enabling seamless data transmission with intelligent HART protocol instruments and conversion to MODBUS RTU protocol for efficient data reading, ensuring real-time communication capabilities.
Utilizing the Bell202 Frequency Shift Keying (FSK) standard, the HART protocol allows for the superimposition of a modulated digital signal onto a 4 to 20 mA analog signal. This design enables bidirectional data communication without interference with the existing 4 to 20 mA signals. The SM181-01-A HART intelligent converter is your go-to solution for modulating and demodulating both digital and analog signals, making it an essential component for smart industrial systems supplied by top manufacturers and factories in China.

Product Details

Product Specifications

Equipped with standard RS485 communication interface for parameter configuration, communication baud rate and parity check. 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 SM181-01-A HART intelligent converter, and can communicate with HART protocol intelligent instrument through the intelligent converter.

Support for standard MODBUS_RTU protocols.

Support a variety of special HART protocol intelligent instruments, and can customize the instructions for reading special HART instruments.
It has the functions of analog quantity acquisition and high-precision A/D simultaneous sampling.
The range and zero point of collected data can be configured.
With power-off memory function, parameters do not need to be reset after power off.

Product Features

SM181-01-A simultaneously collects hart and 4-20mA output 485

Main Parameters

Power Supply

DC 12 ~ 24 V (ripple ≤ 200 mA, current 100mA)

Shell Size

96 mm × 80 mm × 25 mm

Working Temp

-20 ℃ ~ + 80 ℃

Relative Humidity

10% ~ 80%

Frequently Asked Questions

What communication protocols does the SM181-01-A support?

The SM181-01-A supports standard MODBUS_RTU and standard HART protocols. It features a standard RS485 communication interface for parameter configuration.

Does the device retain configuration settings when powered off?

Yes, the converter features a power-off memory function. This ensures that all configured parameters are retained and do not need to be reset after a power interruption.

What are the power supply requirements for the converter?

It requires an input voltage of DC 12 to 24 V, with a power supply ripple of no greater than 200 mA, and an operating current of 100mA.

Can the range and zero point of the collected data be adjusted?

Yes, the range and zero point of the collected data can be fully configured using the special configuration software provided with the device.

What are the environmental limits for operating this device?

The SM181-01-A is designed to work in temperatures ranging from -20 ℃ to +80 ℃ and relative humidity levels of 10% to 80%.