What is the purpose of tags in PanelView Plus applications?

In the context of PanelView Plus applications, tags play a crucial role by linking displays with PLC memory locations. This allows for dynamic data exchange between the Human Machine Interface (HMI) and the Programmable Logic Controller (PLC). When a tag is created in a PanelView Plus application, it represents a specific memory location in the PLC, which may contain variables such as input/output status, set points, or any other data that can be displayed or manipulated through the HMI interface.

By using tags, operators can view real-time data and make adjustments directly from the interface, ensuring that they have accurate and timely information regarding the system they are monitoring or controlling. This capability is essential for effective process management and automation, enabling operators to respond quickly to changes in system conditions.

While other options like creating visual effects, storing user data, or enhancing security features might be relevant in specific contexts, they do not encapsulate the fundamental purpose of tags, which is primarily about establishing that critical link between the HMI and the PLC memory for data handling and interaction.