Industry-leading protocol converters and data collectors for global industrial automation.
As the cornerstone of process automation, HART (Highway Addressable Remote Transducer) technology has transitioned from a simple analog-digital hybrid protocol to a critical component of the Industrial Internet of Things (IIoT). In the contemporary manufacturing landscape, China has emerged as a global hub for high-performance HART modules, bridging the gap between legacy field instruments and modern cloud-based analytics.
The global industrial sector is witnessing a paradigm shift. Traditional point-to-point communication is giving way to multi-drop networks and Ethernet-integrated architectures. Today's HART modules are no longer just "converters"; they are Edge Data Gateways. The primary trend is the integration of HART with high-speed protocols like Modbus TCP and MQTT, allowing real-time asset management and predictive maintenance. China's manufacturers, led by innovators like Songmao Electronics, are at the forefront of this integration, optimizing latency and data throughput for critical infrastructure.
Transitioning legacy analog sensors to fully digital bi-directional communication hubs.
Preprocessing data at the module level to reduce bandwidth and response time.
Implementing isolated circuit protection to safeguard sensitive industrial control units.
Global buyers—ranging from European chemical giants to Middle Eastern oil refineries—require more than just hardware. They demand Reliability, Interoperability, and Compliance. Current procurement trends show a 40% increase in demand for multi-channel collectors (such as 8-channel and 16-channel variants) that can consolidate multiple instrument signals into a single Modbus-TCP stream. This reduces wiring complexity and installation costs by up to 60%.
Jiaxing Songmao Electronics Co., Ltd. was established in 2007. Driven by technological innovation and deeply engaged in industrial automation, we have developed into a high-tech enterprise integrating R&D, production, and sales.
Our focus on independent research and development of core technologies like HART protocol communication products and data collectors has established our leading position in the industry. We provide robust solutions that ensure stable communication in the harshest industrial environments.
Tailored communication architectures for diverse industrial sectors.
High-reliability HART to GPRS/4G gateways for remote pipeline monitoring and pressure management. Ensures data integrity across vast geographical distances.
Integrating boiler temperature sensors and flow meters via SM700 series converters to centralized PLC systems for energy optimization.
Multi-channel HART collectors (SM100-M series) managing pH, turbidity, and flow sensors, providing Ethernet connectivity for municipal monitoring.
Real-time gas emission monitoring using GPRS/4G collectors to ensure compliance with international environmental standards.
Songmao's R&D strategy for 2025-2030 focuses on three pillars:
Operating in 40+ countries requires deep knowledge of local standards. Our HART modules are designed to comply with CE, RoHS, and FCC requirements. We offer localized technical support for protocol mapping (HART to Modbus RTU/TCP) ensuring that our global partners can integrate our hardware into existing SCADA or ERP systems without compatibility hurdles.
Deep dives into protocol conversion and industrial networking.
A comprehensive guide on establishing stable TCP connections in industrial environments.
Understanding the layers and data structures of Modbus RTU vs TCP.
Optimizing polling cycles for high-speed data acquisition.
Physical layer setup and troubleshooting for field technicians.
China-manufactured modules, especially from specialized R&D factories like Songmao, offer a superior price-to-performance ratio. They combine high-end features like galvanic isolation and multi-protocol support with agile manufacturing processes that allow for rapid customization and shorter lead times compared to traditional Western brands.
Yes, our SMART converters (like the SM100 series) are designed to extract the digital HART signal superimposed on the 4-20mA analog loop. This allows you to monitor the primary variable via the analog signal while accessing secondary variables and diagnostic data through the digital HART protocol.
Absolutely. Our SM626H-A and SM626H-D data collectors are specifically engineered for remote transmission. They support 4G/GPRS networks and can push data to remote servers via Modbus or custom protocols, making them ideal for oil fields and remote water stations.
We provide detailed register maps for all our gateways. For example, our 16-channel HART data collector maps each channel's data to specific Modbus registers, which can be read by any standard PLC (Siemens, Rockwell, Schneider, etc.) over an Ethernet connection.
