What is a Client?

In a Server-Client topology, a client is a device or application that requests and utilizes services or resources provided by a server. The client initiates communication with the server, sending requests for data, processing, or specific functionalities.

HMI as Client:

In some configurations, such as OPC UA or MQTT, the HMI might act as the client, subscribing to or requesting data from the PLC, which acts as the server by publishing data or responding to client requests.

Content created by Support Team