Tracing of project changes


Monitoring project changes is possible with WinCC/Audit and with the option package WinCC/ChangeControl as well. In this connection, WinCC differentiates between configuration changes that affect the WinCC database, e.g. changes in Tag Management or creating a user group and configuration changes that are limited to changes to files, what is known as document control. Document control involves process pictures, scripts and log layouts and customer-specific documents. This means that WinCC/Change Control can monitor all these documents or files for changes, create intermediate versions or retrieve them using a rollback function. The entire monitoring process can be activated very easily and conveniently. This means that in the case of plant standstills, for example, plant engineers and operators can quickly and easily comprehend the changes that have been made to the plant. This supports trouble-shooting and reduces plant downtimes.


  • Project versioning and document control

  • Compliant with the requirements of the Food and Drug Administration (FDA)

  • Reduced engineering effort to comply with 21 CFR Part 11 & EU 178/200

Design and functions

Using a project versioning tool

  • WinCC projects can be archived, restored and deleted,

  • WinCC data including the project database, project files (e.g. screens, reports, scripts) and user documents can be archived

  • Activities of the project versioning tool can be recorded

Administrating a WinCC project by employing the project versioning tool

In this way all changes made to a plant beginning from the production start and continuing throughout the entire life cycle can be recorded and - using defined versions - be documented.


  • WinCC/ChangeControl Complete Packages (RC) comprise Engineering and Runtime Software.
    The license is valid for one engineering station.

  • For upgrading a WinCC/Change Control installation you need the WinCC/Audit RC Upgrade Package as  WinCC/Change Control is a subset of WinCC/Audit.

Software and licenses

Article No.

Complete packages WinCC/ChangeControl V7.5 RC


You can find more information about SIMATIC licenses, the Software Update Service, the topic Online Software Delivery and how you get supported by the tools Automation License Manager and SUS Manager at: