In the landscape of industrial automation, the HART (Highway Addressable Remote Transducer) protocol remains the "gold standard" for hybrid analog-digital communication. As global industries transition toward Industry 4.0, the demand for high-reliability HART to Modbus gateways and data acquisition systems has surged. As a leading Wholesale HART Protocol Manufacturer, our factory is at the epicenter of this technological convergence.
The core advantage of the HART protocol lies in its ability to superimpose digital information on traditional 4-20mA analog signals. This provides a wealth of diagnostic and device status data without requiring expensive new cabling. However, the challenge for many global enterprises is data silo integration—how to move this valuable field information into PLC, DCS, or Cloud-based SCADA systems. This is where our advanced signal converters and collectors provide a critical bridge.
China has evolved from a mass-production hub to a world-class center for precision industrial electronics. Our facility, located in the heart of the Yangtze River Delta industrial cluster (Jiaxing), exemplifies this shift. By integrating R&D with advanced manufacturing, we offer unparalleled advantages to global procurement officers.
We handle everything from PCB design and SMT placement to protocol stack development and final assembly under one roof.
Our HART converters undergo rigorous signal isolation tests and electromagnetic compatibility (EMC) verification to ensure stability in harsh environments.
Leveraging the local supply chain allows us to provide industrial-grade reliability at a fraction of the cost of European or American brands.
We don't just follow standards; we set them. Our SM100 and SM700 series feature proprietary filtering algorithms that allow for noise-free HART communication even in areas with high electromagnetic interference—a common problem in massive refineries and power plants.
Years Industry Experience
Countries Served
Precision R&D Space
Highest Channel Density
The industry is moving toward HART-IP, which enables HART data to be transmitted natively over Ethernet or Wi-Fi. As a forward-thinking factory, we are actively developing gateways that support both legacy RS485 Modbus and modern MQTT/OPC-UA protocols for direct cloud integration.
Modern HART data collectors are no longer "dumb" pipes. Our latest units incorporate Edge Computing capabilities, allowing them to process alarms and filter data locally before sending it to the central server. This reduces bandwidth usage and increases response times for critical events.
Our products are engineered to meet the demands of diverse sectors. Each application requires a specific approach to signal conversion and data integrity.
Intrinsically safe HART communication for remote monitoring of tank levels and pipeline pressure. Integration with long-distance Modbus-TCP networks.
Multi-channel (8/16-channel) data collection for flow meters and pH sensors across large-scale treatment facilities.
Monitoring steam temperature and valve positioners in high-temperature environments using our SM100-G intelligent controllers.
Real-time gas emission monitoring and automated reporting via GPRS/4G remote transmission modules.
Established in 2007, Jiaxing Songmao Electronics Co., Ltd. has been at the forefront of industrial automation innovation. As a specialized high-tech enterprise, we focus on the independent research and development of HART protocol communication products and sophisticated data collectors.
Through continuous technological breakthroughs and market expansion, we have established a leading position in the industry, serving clients across 40+ countries. Our mission is to bridge the gap between traditional field devices and modern digital intelligence.
For international buyers and system integrators, selecting a HART to Modbus manufacturer involves more than just price. It requires a partner who understands global compliance and technical support.
Our industrial-grade RS485 interfaces support reliable communication up to 1200 meters. For longer distances, we recommend our HART-to-Ethernet or Fiber optic solutions.
Yes. Our devices follow standard MODBUS-RTU and MODBUS-TCP protocols, making them fully compatible with virtually any SCADA, HMI, or PLC system (Siemens, Rockwell, Schneider, etc.).
This depends on the model. We offer single-channel smart converters (SM100-B) and high-density collectors (SM100-M-32) that can poll up to 32 devices on a single bus.
Absolutely. We have our own firmware team and can customize protocol parameters, baud rates, and even hardware casing for bulk wholesale orders.
HART to 4-20mA (like our SM100-T-B) extracts a digital variable and converts it into a new analog signal. HART to Modbus (like SM100-TCP) converts the digital data directly into a register format for computer networks.
A comprehensive guide on integrating our Ethernet gateways with Transmission Control Protocols for seamless automation...
Deep dive into the differences between RTU and TCP modes and how they interact with HART field devices...
Whether you are retrofitting a legacy plant or building a next-generation IIoT ecosystem, Songmao Electronics provides the expertise, reliability, and wholesale capacity to fuel your growth. With over 18 years of specialized focus, our China factory is ready to be your global supply chain partner.
