The Tespro TG-400 makes a powerful debut! This article takes you through the features of Tespro's brand-new TG-400 series multifunctional smart edge computing gateway.
As industrial digitalization continues to advance, data volumes in areas such as the Industrial Internet of Things (IIoT), smart energy, and smart manufacturing are exploding. Across all industries, the demand for computing power is growing rapidly, and edge computing has become an indispensable core pillar of digital transformation. At the same time, the wide variety of automation equipment on-site presents fragmented protocols and complex interfaces, making device interconnection, data acquisition, local control, and secure cloud upload challenging for enterprises. The TG-400 series directly addresses these real-world industry needs by integrating industrial communications, multi-protocol parsing, edge computing, AI inference, and multi-link networking capabilities. It opens up end-to-end data channels and delivers an integrated edge hardware solution to empower use cases such as smart factories, energy storage, and integrated energy systems within the industrial internet landscape.
Upgrading from an Industrial Communication Gateway to an Edge Intelligent Node
Traditional industrial gateways primarily handle data acquisition and network forwarding. However, as the number of devices increases, data scales expand, and network connections become less stable, uploading all raw data to the cloud can lead to high bandwidth consumption and increased response latency.
The TG-400 is powered by Rockchip's high-performance RK3576 octa-core processor, featuring a 4-core ARM Cortex-A72 and 4-core ARM Cortex-A53 architecture, and runs an embedded Linux operating system. It can perform data acquisition, protocol conversion, logical judgment, and local processing at the edge.
The device integrates a 6 TOPS NPU, combined with AI acceleration inference capabilities peaking at 20 TOPS, delivering total heterogeneous computing performance of up to 26 TOPS. It supports multiple computing precisions including INT4, INT8, INT16, and FP16, meeting the requirements of industrial data analysis, anomaly identification, equipment status assessment, and edge AI inference applications.
Multi-Protocol Access to Bridge Different Industrial Devices
Data silos in industrial settings often arise from inconsistencies in device brands, interface types, and communication protocols. The TG-400 integrates a wide range of industrial IoT protocols, enabling connectivity with power meters, PLCs, sensors, controllers, and other industrial terminals.
For cloud communication, the product supports protocols including MQTT, TCP, UDP, HTTP, and HTTPS. MQTT, in particular, supports v3.1.1 and v5.0, QoS levels 0/1/2, custom topics, and TLS/SSL encryption, offering flexible integration with various IoT platforms.
In the energy metering domain, the TG-400 supports Modbus RTU, DL/T 645, IEC62056-21, IEC1107, and DLMS/COSEM, enabling data acquisition and protocol conversion for electricity meters, water meters, gas meters, and other metering devices.
In industrial automation, the product supports mainstream protocols including Siemens S7comm/S7comm+, Mitsubishi MC Protocol, Omron FINS, EtherNet/IP, EtherCAT, PROFINET, CAN, and OPC/OPC UA, allowing direct data reading from PLCs and industrial control equipment of different brands.
Through unified data acquisition and protocol parsing, the TG-400 converts on-site data from various devices into standardized formats, which are then uploaded to cloud platforms via MQTT, HTTP, and other methods, reducing the complexity of multi-device integration and secondary development.
Rich Interfaces and Multi-Network Communication Capabilities
The TG-400 is equipped with 1 RS232 and 2 RS485 ports, with all three serial ports capable of operating simultaneously at baud rates ranging from 300 to 230400 bps. The product also provides 2 DI, 2 DO, USB 3.0, a Micro SD card slot, dual SIM card slots, and external antenna interfaces.
Its extensive hardware interfaces allow connections to PLCs, power meters, environmental sensors, variable frequency drives, energy storage controllers, and other industrial terminals, enabling multi-device access, data acquisition, and remote communication within a single project.
In terms of networking, the TG-400 supports 2G, 3G, 4G, and 5G RedCap cellular networks, adapting to network environments across different countries, regions, and operators. The device can also be expanded with dual-band Wi-Fi, Bluetooth, LoRa, and LoRaWAN, with optional GPS, GLONASS, BeiDou, Galileo, and QZSS positioning capabilities.
The multiple networking options accommodate deployment needs across various scenarios, including factories, substations, energy storage stations, environmental monitoring sites, and smart city facilities.
Redundant Networking and Industrial-Grade Reliability Design
For substations, rail transportation, and other critical infrastructure, continuity of network communication is particularly vital.
The TG-400 supports HSR (High-availability Seamless Redundancy) and PRP (Parallel Redundancy Protocol) as defined by the IEC 62439-3 standard. By simultaneously transmitting data through dual channels, the system maintains communication even when one link fails, with failover times of less than 1 millisecond.
In terms of hardware reliability, the TG-400 features a 12–36V DC wide-range power input, with protection against reverse polarity, overvoltage, overcurrent, lightning strikes, and surges. According to the V1.0.0 technical specification, the device operates within a temperature range of -40°C to +75°C and a humidity range of 10% to 95% (non-condensing), making it suitable for a wide variety of industrial environments.
The device also supports real-time acquisition, interval-based acquisition, scheduled reporting, and customizable data collection strategies, allowing projects to balance data timeliness, network traffic, and system load as needed.
Designed for Diverse Industrial Internet Applications
With its edge computing, multi-protocol parsing, and multi-network communication capabilities, the TG-400 can be applied across various industry scenarios.
In smart power distribution projects, the device connects to power meters, protection devices, and distribution control equipment for data acquisition, protocol conversion, and local analysis.
In smart energy and energy storage projects, the TG-400 interfaces with electricity meters, energy storage controllers, and energy management devices, supporting local energy data processing and collaboration with cloud platforms.
In industrial automation projects, the product connects to mainstream PLCs from Siemens, Mitsubishi, Omron, and others, as well as machine tools, robotics, and production line equipment, helping enterprises establish a unified device data collection channel.
In environmental monitoring and smart city projects, the TG-400 connects to temperature, humidity, liquid level, gas, water quality, and other sensors, and is applicable to streetlight control, manhole cover monitoring, drainage networks, pumping stations, and remote unattended sites.
Making Industrial Data Valuable at the Edge
Industrial digitalization is not just about connecting devices to the network—it's about understanding, processing, and responding to data at the edge.
The Tespro TG-400 integrates device access, protocol conversion, edge computing, AI inference, and cloud communication into a single platform. It helps enterprises reduce the complexity of multi-device integration, lower cloud transmission loads, and improve the real-time responsiveness and reliability of industrial systems.
For industrial IoT projects that require connecting multiple PLCs, meters, and sensors, the TG-400 serves as an edge intelligent node bridging field devices and upper-level platforms, providing a stable, open, and scalable data foundation for smart power distribution, smart energy, industrial automation, and smart city development.
