The following tables of system limits provide assistance in estimating whether a specific project is still within the system limitations for WinCC Runtime Professional. The stated maximum values are not additive.

We cannot guarantee proper functioning of configurations that make full use of all system limits on the HMI devices. In addition to the limitations specified, allowances must be made for restrictions in configuration memory resources.

1) Limited by system resources.

2) On single-user station or server or on client per server if "LongTimeArchiveConsistency" is set to "No". On single-user station, server, or client if "LongTimeArchiveConsistency" is set to "Yes".

3) On single-user station or server or on client per server.

4) The number and complexity of the objects affect the performance.

5) Limited by system resources.

6) The sum of the number of recipe elements and number of data records must not exceed a value of 320 000.

7) Dependent on the Logging PowerPack used for the log tags. 500 log tags are contained in the basis version.

8) If the server is also used as an operating unit, the number of clients for this server is reduced to four.

9) Mixed configuration: 32 Clients + 3 Web Clients

10) Mixed configuration: 50 Web Clients + 1 WinCC Client