Wholesale Hart Communication Protocol Manufacturers & Factory

Empowering Industrial Automation with High-Precision HART to Modbus Converters & Data Collectors since 2007.

Global Industrial Status of HART Communication

The HART (Highway Addressable Remote Transducer) protocol remains the most widely used digital communication standard in the global process automation industry. Despite the rise of pure digital protocols like Foundation Fieldbus and Profibus PA, HART's ability to superimpose digital information on traditional 4-20mA analog signals has ensured its longevity. With over 40 million HART-enabled devices installed worldwide, it bridges the gap between legacy systems and the data-driven demands of Industry 4.0.

In today's global landscape, process industries such as oil and gas, chemical manufacturing, and water treatment are under pressure to optimize maintenance and increase safety. HART protocol products, such as the SM100-HHE Series, allow for remote configuration, device diagnostics, and multivariable data collection without interrupting the process loop. This dual-capability is why major global enterprises continue to invest in HART infrastructure for their smart factory initiatives.

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Global Adoption

Dominating over 70% of the installed base in process automation worldwide, especially in mission-critical infrastructure.

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Interoperability

Seamlessly integrates with existing 4-20mA loops, allowing gradual upgrades to digital monitoring systems.

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Reliability

Field-proven for decades, offering high noise immunity and stable communication in harsh electromagnetic environments.

2007 Established
18+ Years Experience
40+ Global Countries
1073㎡ Factory Area
ISO Quality Certified

Why Source from China's HART Protocol Specialists?

Jiaxing Songmao Electronics Co., Ltd. represents the peak of China's industrial efficiency. As a leading manufacturer of HART smart converters and data collectors, we leverage a robust supply chain to provide high-precision instruments at competitive wholesale rates. Our factory integrates advanced SMT (Surface Mount Technology) lines with rigorous multi-stage quality control to ensure every SM100-M-8 or SM200-A protocol converter meets international standards.

The efficiency advantage of a Chinese factory like Songmao is not just about cost—it's about rapid R&D iteration. With 18 years of specialized focus, we can customize HART to RS485 or Ethernet solutions for specific client requirements in weeks, not months. This agility is critical for global distributors and system integrators who need to adapt to changing project specifications in the oil, heating, or environmental protection industries.

Songmao Factory
  • ✅ Independent R&D: We own the core technology of our HART communication stacks.
  • ✅ Scalable Manufacturing: From small orders to large-scale wholesale batches.
  • ✅ Global Compliance: Products designed for diverse industrial environments with CE and RoHS readiness.
  • ✅ Technical Support: Direct access to engineers for seamless integration of SM700 or SM100 units.

Strategic Application Scenarios

Oil & Gas Industry

Real-time pressure and temperature monitoring at remote wellheads using SM626H-D GPRS remote data collectors for increased safety.

Water Treatment

Integrating HART-enabled flow meters with Modbus RTU/TCP PLCs via 8-channel collectors to optimize chemical dosing and flow control.

Energy & Heating

SM100-M series gateways facilitate data centralization from multivariable heat meters, enabling smart city energy management.

Environmental Protection

Monitoring air quality and effluent discharge with precision 4-20mA to RS485 converters, ensuring regulatory compliance with logged data.

Future Trends in HART Protocol Development

The industrial world is moving toward HART-IP and Ethernet-APL (Advanced Physical Layer). The future of HART involves bringing Ethernet speed to the field level while maintaining the intrinsic safety and simplicity of the two-wire loop. Our R&D team is currently focusing on hybrid converters that bridge traditional HART devices directly to cloud-based IoT platforms using MQTT and Modbus TCP protocols. This evolution allows global procurement teams to future-proof their installations, ensuring that today's investment in HART sensors remains relevant for tomorrow's AI-driven predictive maintenance.

Expert Insights: HART Protocol FAQ

How does a HART to Modbus converter improve operational efficiency?
By converting HART's multivariable data into Modbus RTU/TCP, operators can view secondary variables (like internal temperature or sensor health) on a standard SCADA/HMI system, reducing the need for manual field inspections.
What is the maximum distance for RS485 communication in your SM200-A series?
Our industrial-grade RS485 interface supports reliable communication up to 1200 meters, making it ideal for large-scale factory layouts or refinery sites.
Can I use the SM100-C USB Modem with any HART-enabled software?
Yes, our HART modems are designed to be compatible with major software packages including PACTware, Rosemount Radar Master, and other FDT/DTM-based tools.
Why should I choose an 8-channel collector over multiple single converters?
An 8-channel collector like the SM100-M-8 significantly reduces wiring complexity, saves DIN-rail space, and provides a single Modbus register map for multiple field devices, lowering system integration costs.