The MQTT protocol of the Internet of Things can be connected to PLC devices that only support the MODBUS protocol. The MQTT protocol is a lightweight communication protocol designed for efficient communication in low-bandwidth, unstable network environments. The MODBUS protocol is a communication protocol mainly used for communication between devices in the field of industrial automation.
To achieve access between the MQTT protocol and PLC devices that only support the MODBUS protocol, you can use third-party gateway devices or software for conversion. In this way, MODBUS protocol data can be converted into MQTT protocol data through gateway devices or software, and then transmitted to the cloud platform or other systems for processing and analysis.
In this way, data interaction between PLC devices and other devices or systems can be achieved, and the advantages of the MQTT protocol can be used to achieve real-time transmission of data and remote monitoring and control. At the same time, this method can also improve the flexibility and scalability of the system, making it easier for PLC equipment to integrate and communicate with other equipment.
All in all, by using third-party gateway equipment or software, PLC devices that only support the MODBUS protocol can be connected to the MQTT protocol of the Internet of Things . This method can realize data communication and interoperability between devices, providing more possibilities and value for applications in industrial automation and other fields.