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hart to 485, 4-20mA to 485, hart smart converter , SM181-01-A

SM181-01-A HART smart converter is A product developed by using ARM microprocessor, HART protocol modem chip and combining with A lot of practical experience. It is designed according to the requirements of industrial products and has high reliability and stability. The intelligent converter is equipped with a standard RS485 interface, which can transparently transmit data with intelligent instruments with HART protocol or convert to MODBUS _ RTU protocol to read data, so as to ensure real-time data transmission.
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. SM181-01-A HART intelligent converter is an intelligent converter that modulates and demodulates digital signals and analog signals in both directions.

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Communication applications

Post-sale service

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 voltage: DC 12 ~ 24 V, the ripple of the power supply shall not be greater than 200 mA, and the current shall be 100mA.
Shell size: length 96 mm × width 80 mm × height 25 mm.
Working temperature: -20 ℃ ~ + 80 ℃.
Relative humidity: 10% ~ 80%.

SM181-01-A.exe

SM181-01-A -(2025_06_10)-User_Manual.pdf

FAQ

1.Are you a factory or trading company?
We are a high-tech enterprise factory integrating R&D, production and sales. We have a complete ERP system and equipment, which can meet your procurement needs.

2.Delivery?
Goods will be dispatched within three working days after receiving the payment.

3.MOQ？
Under normal circumstances, we support a minimum order of one piece.

4.IS OEM service available?
Yes, product could print your logo , or customized by your design.

5.Payment?
100% payment. You can make the payment by telegraphic transfer

6.Does the product support instruments of brands such as E+H, Rosemount, and Yokogawa?
Yes, This hart modem supports communication of domestic and foreign brands.

Application diagram of SM181-01-A and Endress+Hauser pressure transmitter

Contact US

All products of our company come with a three-year warranty.

If you encounter any problems during use, please contact us. WhatsApp contact information: 18105734868, WeChat contact information: 17769909079

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