Effortless IIoT integration of Modbus RTU or TCP systems
The platform-independent container netFIELD App Modbus to MQTT Adapter enables host devices, such as edge gateways, to exchange data between Modbus RTU or TCP server devices and user applications via an MQTT message bus.
Users upload simple, JSON-encoded Modbus device description files through the app’s integrated UI, providing the necessary device metadata, including supported register and coil configurations. These files serve as the basis for configuring the Modbus read/write transactions with devices.
For MQTT communication, the app functions as an MQTT client, translating Modbus data from/into MQTT topics: one topic for publishing data during Modbus read operations, and another for subscribing to data for Modbus write actions. Data within these topics is encoded and decoded in JSON format.
For read commands, the app publishes data to the MQTT broker at user-defined intervals. For write commands (subscriptions), the received data is sent to Modbus after being published by the MQTT broker in response to publishing actions from connected MQTT clients.
This app is ideal for upgrading Modbus-based systems with IIoT or smart services. The app uses field and control data from Modbus devices to gain real-time insights into physical processes. This enables, for example, faster response times in predictive maintenance or increased system productivity through real-time data analysis, leading to derived actions.
Under the netFIELD brand, Hilscher also offers additional communication containers, edge device platforms, and a central management solution for the devices and containers.
