Siemens SIMATIC HMI Series System Manual page 196

Licensing
7.2 Overview of the licensing
Client licensing for "RT Client" and "RC Client"
You can use these licenses for both clients without a custom project as well as for clients with
a custom project. Note the following:
● Microsoft SQL Express must be installed.
If the SQL Standard Server is installed, the "RT Client" license causes display of a license
message that requires acknowledgment.
● The database on the client is limited to a maximum of 2 GB due to the use of Microsoft SQL
Express.
● The SIMATIC Information Server requires the SQL Standard Server. This means the
Information Server cannot be installed on the RT Client PC.
● The Client Upgrade package contains either only the RT Client upgrade or only the RC
Client upgrade.
SIMATIC NET and other options, for example WinCC/WebNavigator, are not included in
this Client Upgrade package.
Powerpack
The number of external tags (PowerTags) for a WinCC software configuration can be upgraded
with Powerpack:
● Upgrade license for PowerTags (process tags)
For the Powerpack of the PowerTags, we offer the "WinCC RT (...) Powerpack" and "WinCC
RC (..) Powerpack" packs.
If the permissible number of PowerTags is exceeded in Runtime, WinCC switches to demo
mode.
Note
Use Powerpack only for license upgrade
By using Powerpack, you only increase the number of licensed tags (PowerTags).
The Powerpack cannot be used to operate the WinCC software.
Powerpack installation is possible only once
You can use the Powerpack only once to upgrade the system.
Archive licenses
Archive licenses belong to the basic "Floating" type; however, they always need to be
transferred locally to the computer.
You can cumulate archive licenses. If you transfer several single archive licenses locally to a
computer, the permitted configuration limits for Runtime are derived from the sum of the
individual archive licenses.
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WinCC: General information and installation
System Manual, 02/2017, A5E40840020-AA