The Siemens part number 6DL5407-8AA18-0YE0 refers to the SIMATIC PCS 7 SC Library Software Upgrade V8.1, designed to upgrade existing SC libraries from V7.X to V8.1 within PCS 7 projects.

 Product: SC Library Software Upgrade V8.1 (from V7.X)

 License: Valid for all PCS 7 ES/AS/OS components of a project

 Contents: Electronic software (E-SW), software and documentation on DVD

 Languages: German and English

 Supported OS: Windows 7 Ultimate, Windows Server 2008 R2

 Reference Hardware: PCS 7 IPC Bundle

 Successor: Replaced by 6DL5407-8AA78-0YE0, which upgrades to V10.0

 Status: Discontinued as of October 1, 2018