Established in 2007, Jiaxing Songmao Electronics Co., Ltd. has evolved into a global leader in protocol conversion technology. As a specialized Modbus Over Ethernet supplier, we bridge the gap between legacy serial field devices and modern IT infrastructures, ensuring 100% data integrity and zero-latency communication.
Our China-based facility operates under strict Quality Control (QC) protocols. From the SM100-M series HART data collectors to the SM700 series smart converters, every unit undergoes rigorous testing to withstand harsh electromagnetic environments typical of Oil & Gas refineries.
Serving over 40 countries, our products are engineered to meet international industrial standards. We don't just sell hardware; we provide a robust ecosystem for Modbus TCP/IP connectivity, ensuring your SCADA systems and PLCs communicate seamlessly across continents.
The industrial landscape is shifting from simple "Protocol Conversion" to "Intelligent Edge Connectivity." Our R&D department is focused on the next generation of Modbus Over Ethernet solutions that integrate AI-driven diagnostic capabilities.
Future iterations of our SM series will include localized processing power, allowing for data filtering and pre-analysis before it hits the Ethernet backbone. This reduces bandwidth congestion in massive IoT deployments.
As Modbus TCP is inherently insecure, our roadmap includes integrated VPN tunneling and AES-256 encryption at the gateway level, protecting critical infrastructure from external threats.
We are actively developing Ethernet gateways that support TSN standards, providing deterministic communication for real-time control applications that traditional Modbus Over Ethernet cannot handle.
Located in the heart of Chinaโs electronics manufacturing hub, Songmao Electronics leverages a highly integrated supply chain. This "China Factory Advantage" allows us to maintain stable lead times even during global component shortages.
Integration of HART-capable field instruments into centralized Ethernet control rooms. Our SM100-M series provides the backbone for remote monitoring of pressure and temperature in hazardous zones.
Seamlessly connecting flow meters and level sensors across vast municipal networks using 4G/GPRS data collectors like the SM626H-D for real-time telemetry.
Monitoring air quality and emission levels by converting multi-variable sensor data into Modbus TCP for cloud-based reporting and compliance auditing.
For global procurement managers, selecting a Modbus Over Ethernet supplier requires more than just looking at technical specs. It demands a partner who understands Local Compliance and Certification frameworks.
We provide comprehensive technical documentation in English, including wiring diagrams, SDKs, and step-by-step configuration guides for Modbus TCP/RTU mapping.
Our factory adheres to ISO 9001 standards, and our products are designed to meet CE and RoHS requirements, facilitating smooth customs clearance for international orders.
Strategically located near major ports, we offer flexible shipping options (DDP/CIF/FOB) to ensure your industrial automation projects remain on schedule.
Modbus TCP is a distinct protocol that wraps Modbus data in a TCP/IP packet with a specific MBAP header, whereas "Modbus RTU over Ethernet" (often called Serial Tunneling) simply encapsulates the raw RTU serial frame into a UDP or TCP packet. Our gateways support both modes to ensure compatibility with all SCADA brands.
The SM100-M series features an intelligent arbitration engine. It can act as a HART Primary Master while allowing a handheld communicator (Secondary Master) to connect simultaneously without data collisions, a critical feature for field maintenance.
In a standard local area network, our SM700 and SM100 series maintain a conversion latency of < 10ms, making them suitable for most closed-loop control applications in industrial automation.
Yes, products like the SM701-D and SM100-T-B convert analog 4-20mA signals into digital Modbus registers, allowing you to read process variables directly through your Ethernet network.
Partner with China's leading factory for reliable Modbus Over Ethernet and HART protocol solutions.
