In smart city and industrial IoT construction, a long‑standing challenge is protocol incompatibility between new and old devices. On one side are legacy controllers, sensors, and meters that have been operating stably for ten or even twenty years, supporting only serial protocols like Modbus RTU. On the other side are modern cloud platforms and big data analytics systems that expect to receive data via MQTT or OPC UA. Replacing all legacy devices is costly and disruptive; abandoning data integration makes true smart operations impossible. Tespro's 4G/5G industrial gateway offers an elegant solution through powerful multi‑protocol interoperability. The gateway supports Modbus, MQTT, OPC UA, and multiple industrial protocols, performing bidirectional conversion between different protocols so data from legacy devices flows smoothly into modern cloud platforms while cloud commands reach field devices.
The practical value of this protocol interoperability is especially evident in system integration projects. Consider a typical large campus retrofit: the existing building automation system uses BACnet, the lighting system uses Modbus, and the newly deployed energy management platform requires MQTT for data ingestion. Without a unified gateway, integrators must develop custom interface programs for each subsystem — heavy development work with difficult long‑term maintenance. Tespro's gateway connects these different subsystems simultaneously, converting BACnet and Modbus data to MQTT format for cloud reporting while converting cloud commands into protocol formats understood by each subsystem. The gateway also supports OPC UA, an important standard for industrial interoperability particularly suitable for cross‑domain smart city projects. For system integrators, choosing a gateway with broad protocol coverage means handling diverse on‑site situations with a unified hardware platform, reducing project complexity and long‑term maintenance costs.
Which industrial protocols does the Tespro industrial gateway support, and can it convert between different protocols?
The Tespro gateway supports Modbus, MQTT, OPC UA, BACnet, and multiple other industrial protocols with bidirectional protocol conversion capability. Modbus or serial data from legacy devices can be converted to MQTT or OPC UA format for cloud reporting, while cloud commands can be converted to protocols understood by field devices — enabling seamless integration between new and old systems.
Tespro gateway protocol interoperability extends beyond protocol conversion to data format standardization. Even when different manufacturers' devices use the same protocol, data formats and units may differ. The gateway's built‑in data processing engine formats collected data, converts units, and performs calculations, ensuring consistent format and semantics for data reported to the cloud. The gateway also supports edge computing, filtering, aggregating, and applying logic to data locally, uploading only valuable data to the cloud — reducing network bandwidth consumption and cloud platform processing burden. For organizations advancing digital transformation without retiring existing equipment, Tespro gateway offers a pragmatic path: preserve existing equipment investment, integrate with new systems through the gateway, and let legacy devices continue delivering value in the digital age.
