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China Factory Suppliers: 8-Channel HART to MODBUS RS485 Protocol Converter & Modbus-TCP Gateway SM100-W
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China Factory Suppliers: 8-Channel HART to MODBUS RS485 Protocol Converter & Modbus-TCP Gateway SM100-W
Introducing the SM100-W series HART smart converter, a cutting-edge product developed in China by leading suppliers and manufacturers. Utilizing advanced ARM microprocessor technology and a specialized HART protocol modem chip, this converter embodies extensive practical experience and meets the rigorous demands of industrial applications. Renowned for its high reliability and stability, the intelligent converter features a standard RS485 interface and gateway, enabling seamless data transmission with HART protocol-compatible intelligent instruments. It also offers the versatility to convert data to MODBUS RTU/MODBUS TCP protocols, ensuring real-time data transfer for efficient monitoring and management. Trust in the quality of our factory-manufactured products to enhance your industrial automation solutions
The ARM microprocessor, a HART protocol modem chip, and a great deal of real-world knowledge were used in the development of the SM100-W series HART smart converter. It offers great stability and dependability and is designed to meet the specifications of industrial items. To enable real-time data transmission, the intelligent converter has a standard RS485 interface and gateway that can either convert to MODBUS_RTU/MODBUS_TCP protocol to read data or transparently send data with intelligent instruments using HART protocol.
The HART protocol instrument enables bidirectional data transmission without interfering with the 4 to 20 mA analog signal by superimposing a modulated digital signal on a 4 to 20 mA basis using the Bell202 Frequency Shift Keying (FSK) standard. Digital and analog signals can be modulated and demodulated in both directions using the SM100 series intelligent converter.
Product Performance
Equipped with standard RS485 communication interface allowing adjustment of baud rate and parity settings.
Independent operation from the standard HART bus 1200 speed, significantly increasing overall system response.
Industrial universal module shell design for simplified installation and commissioning.
Specialized configuration software for parameter adjustment and instrument communication.
Full support for MODBUS_RTU and MODBUS_TCP protocols.
Simultaneous connection capability for multiple HART protocol intelligent instruments.
Data update cycle of 0.8 seconds per set (approx. 6.4 seconds for 8 connected sets).
Main Parameters
Power Input: DC 12 to 24 V, 100 mA current.
Power Quality: Ripple must not exceed 200 mA.
Enclosure Dimensions: 145 mm (L) x 90 mm (W) x 73 mm (H).
Operating Environment: -20°C to +80°C.
Relative Humidity: 10% to 80% (non-condensing).
Installation: Fixed mounting or standard industrial rail installation.
Frequently Asked Questions
What is the primary function of the SM100-W series HART converter?
The SM100-W series HART smart converter is designed to bridge the gap between HART protocol instruments and industrial control networks. It converts HART signals to MODBUS_RTU or MODBUS_TCP protocols via a standard RS485 interface, allowing for real-time data transmission and monitoring.
Does the converter interfere with the analog 4 to 20 mA signal?
No. The SM100-W series utilizes the Bell202 Frequency Shift Keying (FSK) standard to superimpose a digital signal on top of the 4 to 20 mA analog signal. This ensures clean, bidirectional digital data transmission without causing any interference to the existing analog loop.
How many HART instruments can be connected at once?
Multiple intelligent HART instruments can be connected simultaneously. The data update speed is highly efficient: a single instrument updates in 0.8 seconds, while a multi-drop setup of eight connected instruments updates in approximately 6.4 seconds.
What are the power supply and environmental requirements?
The device requires a DC input voltage of 12 to 24 V (100 mA current). It is designed for harsh industrial environments, operating reliably in temperatures ranging from -20°C to +80°C and relative humidity levels between 10% and 80%.
What mounting and installation options are supported?
The SM100-W series features an industrial universal module shell, which simplifies both commissioning and physical setup. It supports two main installation options: fixed mounting or standard 35mm industrial rail installation.
Does it support Modbus protocols for system integration?
Yes, it fully supports both MODBUS_RTU and MODBUS_TCP protocols. This makes it highly compatible with modern PLC, SCADA, and DCS systems for seamless data reading and instrument management.
