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HART Smart Converter SM181-01-A - 4-20mA to RS485, China Suppliers & Factory for Reliable Data Transmission

The SM181-01-A HART smart converter is an advanced product developed by a leading factory in China, leveraging ARM microprocessor technology and an efficient HART protocol modem chip. This intelligent converter is designed to meet the stringent requirements of industrial applications, ensuring high reliability and stability. Equipped with a standard RS485 interface, it facilitates seamless data transmission with HART protocol-enabled intelligent instruments or conveniently converts these communications to MODBUS RTU protocol for easy data access, guaranteeing real-time data transmission.
Utilizing the Bell202 Frequency Shift Keying (FSK) standard, the HART protocol allows for the superimposition of a modulated digital signal on a 4 to 20 mA basis. This innovative design enables bidirectional data communication without interfering with the existing 4 to 20 mA analog signal. The SM181-01-A HART intelligent converter excels in modulating and demodulating both digital and analog signals, making it a top choice among suppliers for reliable industrial automation solutions 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 Input	DC 12 ~ 24 V, power supply ripple ≤ 200 mA, current 100mA
Shell Dimensions	Length 96 mm × Width 80 mm × Height 25 mm
Working Temperature	-20 ℃ ~ + 80 ℃
Relative Humidity	10% ~ 80%

Frequently Asked Questions

Does the SM181-01-A support configuration of communication parameters?

Yes, it features a standard RS485 communication interface for parameter configuration, communication baud rate, and parity check.

What protocols are supported by the converter?

The SM181-01-A supports standard MODBUS_RTU protocols, as well as various special HART protocol intelligent instruments.

Does the device retain its settings during a power outage?

Yes, the converter has a built-in power-off memory function, meaning parameters do not need to be reset after a power failure.

What are the power input requirements for the SM181-01-A?

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

What is the operating environment range for this device?

The device works in temperatures ranging from -20 ℃ to + 80 ℃, and in relative humidity levels of 10% to 80%.

Can the device collect analog data?

Yes, it supports analog quantity acquisition and high-precision A/D simultaneous sampling. Both the range and zero point of the collected data can be configured.