Licenses - Features - PowerTags (I/O)

Determine the Number of PowerTags (I/Os) in a WinCC OA Project

A PowerTag (I/O) is a data point element (DPE) for which:

1. Data is either sent or received via a driver (e.g. S7 driver reads data from a PLC)
2. Data is exchanged with other WinCC OA servers (distributed systems)
3. Data is exchanged with other software

• The number of internal data point elements (with no external communication) is not limited.

This definition is valid for the PowerTag licensing of WinCC OA systems.

1. Data which is exchanged with PLCs can be identified by the number of WinCC OA periphery address configs.
2. A hierarchical distributed system needs the sum of all licensed PowerTags of the lower level systems plus the directly connected PowerTags.
   Anmerkung: The license will always be adjusted upward to the next higher PowerTag limit.
   Anmerkung: A distributed system on the same level requires the sum of PowerTags of all connected systems (this means that all systems will have the same PowerTag count).
3. For the connection to external systems, the number of DPEs is counted. This contains the sent or received data of the external systems.
4. The transfer of internal data points between systems is not counted as a PowerTag. This means that all other DPEs (without periphery address config and not exchanged with an external system) are not counted as PowerTags.

For a better understanding, see the figure of licensing a hierarchical WinCC OA system. The figure shows the licensing of a hierarchical WinCC OA system consisting of three WinCC OA systems, several PLCs and one external system.