Comparison and merging of TIA projects managed in Teamcenter using reference project functionality.Simultaneous editing of a TIA project from Teamcenter by a group of users using a combination of TIA Portal Multiuser Engineering and TIA Portal Teamcenter Gateway.The following new functions are available with TIA Portal Teamcenter Gateway V15.1: Operator control is integrated into the TIA Portal. The Teamcenter Gateway enables you to save and manage TIA Portal projects and global libraries in Teamcenter. This means that synchronization and upload via the CPU are no longer necessary. This enables a consistent status between device and server project. Commissioning mode for joint commissioning in a team: Downloads are synchronized via the server project.The following new functions are available with TIA Portal Multiuser Engineering V15.1: As a result, configuration times are significantly reduced and projects can be commissioned quicker. Totally Integrated Automation Portal (TIA Portal) Multiuser Engineering enables multiple users to simultaneously work on a single project. STEP 7 PLCSIM TIA Portal Multiuser Engineering.STEP 7 Basic/Professional and WinCC Professional.STEP 7 Basic/Professional and WinCC Basic/Comfort/Advanced.