High-precision analog-to-digital conversion for seamless PLC integration.
Multi-channel acquisition designed for complex industrial sensor networks.
Reliable communication bridge for legacy instrument modernization.
Enterprise-level gateway for large-scale facility monitoring.
Cost-effective conversion with ruggedized industrial housing.
Intelligent processing for real-time data throughput optimization.
Versatile DIN-rail mountable converter for tight cabinet spaces.
Signal isolation and distribution for complex RS485 topologies.
As a leading China Modbus connector supplier, Jiaxing Songmao Electronics Co., Ltd. recognizes that the modern industrial landscape is no longer just about hardware—it's about the seamless flow of data. Since our establishment in 2007, we have pioneered solutions that bridge the gap between legacy analog systems (4-20mA) and modern digital protocols like Modbus RTU, Modbus TCP, and HART.
Our depth of experience spans nearly two decades of refining signal processing. We don't just supply connectors; we engineer information gain. By converting HART variables into Modbus registers, we unlock hidden diagnostic data from field instruments that would otherwise be lost in simple analog loops. This allows for predictive maintenance and higher operational efficiency.
Our authority is built on specialized research into HART protocol communication products and data collectors. With 18+ years of strict quality control, we provide reliable data transmission modules that function in the harshest EMI/RFI environments common in oil fields and power plants.
The global industrial market demands both agility and volume. Our Jiaxing-based factory leverages the world’s most robust electronics supply chain. This translates to:
Remote monitoring of wellhead pressure using our GPRS/4G Modbus data collectors. Reliable data transmission over vast distances ensures safety and compliance.
Optimizing heat exchange stations through precise 4-20mA to RS485 conversion, allowing centralized SCADA systems to manage urban heating grids.
Integrating HART-based flowmeters into Modbus-based PLC systems for real-time leakage detection and chemical dosing control.
Our R&D focus is shifting towards Edge Computing and AI-ready Gateways. Future iterations of our Modbus connectors will include on-board data pre-processing, reducing bandwidth requirements by only transmitting anomalous data to the cloud. We are also expanding our support for Modbus TCP/IP to meet the growing demand for Industrial Ethernet.
A: Modbus RTU is a serial protocol (RS232/RS485) typically used for short to medium distances and simpler device chains. Modbus TCP is an Ethernet-based protocol that allows for higher speeds and integration into standard IT network infrastructures.
A: Yes, models like the SM701-D are specifically designed as multivariable current output converters, allowing you to extract primary, secondary, tertiary, and quaternary variables from a single HART device and map them to Modbus registers.
A: Absolutely. Our products meet international CE/FCC standards, and we provide detailed technical documentation in English. We support global clients with localized technical assistance for protocol mapping and system integration.
A: We utilize industrial-grade isolation chips and robust surge protection in our circuit designs. Every unit undergoes a rigorous 48-hour burn-in test before leaving our China factory.
High-speed RS485 communication with built-in protocol translation.
Precision instrument bridge for advanced data analytics.
Expand your RS485 network without signal degradation.
Integrated display for local monitoring and field troubleshooting.
Bridge the gap between serial devices and Ethernet infrastructure.
Direct mains power support for easy installation in standard cabinets.
Cellular-enabled data logger for remote IoT applications.
High-performance bi-directional protocol conversion.