OneNET IoT Platform Platform Introduction Introduction Manual Guidline for Device Development Guideline for Application Development
API
API Usage API List SDK MQTT LwM2M EDP Modbus TCP
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# Introduction

Modbus protocol supported by OneNET is based on TCP connection, namely Modbus over TCP, As a host, OneNET encapsulates data in TCP data to send and receive data. With simple transparent capability through DTU, it can realize Modbus protocol communication between bus device and platform, which can be widely applied to various industries using Modbus protocol.

Functions and Characteristic

  • Long connectivity protocol
  • OneNET platform serves as Modbus host, periodically issueing host commands
  • Determine the content and issuing cycle of a single command by attributes of a single datastream
  • Automatically convert data reported by the terminal into datapoints in datastream
  • The processing formula can be preset, to proceed preliminary process on data

Typical Application Scenarios

Modbus communication protocol is an industrial fieldbus communication protocol, which is widely used in industrial automation control, and can realize industrial data acquisition, control and other functions. It can be widely used in DTU + Modbus scenarios (i.e. Bus protocol is Modbus, using DTU to connect platform), shown as below:

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