WinCC/Audit & WinCC/ChangeControl

• WinCC/ChangeControl is used to trace engineering changes in a tamper-proof long-term audit trail database, called the audit trail for short. All engineering changes are automatically recorded in the audit trail. This provides a traceable record of every change that has been made, as well as enabling the causes to be deduced and the system downtimes to be minimized.
  To begin tracing at a defined project status, a project version definition is provided that contains all data and files of a WinCC project version. The project version definition naturally provides the ability to reactivate earlier project versions. Document management is also provided, which manages and archives intermediate status for system graphics, reports or user files and stores change information of the user. The audit viewer with helpful filter functions enables the audit trail to be quickly and easily evaluated, exported or even printed out.
• WinCC/Audit includes the full functionality of WinCC/ChangeControl and is also used for tracing all operations. All operations are automatically recorded in the audit trail at RT.
• Licensing:
  To configure which change information from the project should be recorded in the audit trail, the WinCC/ChangeControl RC or WinCC/Audit RC package is required. "RC" stands for Runtime and Configuration. It is required on the station that is to be configured and also includes an RT license. For recording an audit trail, one WinCC/Audit RT license is required per WinCC station (Client/Server).
• The WinCC/Audit or WinCC/ChangeControl options and SIMATIC Logon support users in the validation of their plants and meet the requirements according to FDA CFR 21 Part 11.