TTB Terminal Board (SINAMICS)TCP Tool Center Point: Tool tipTCP/IP Transport Control Protocol / Internet ProtocolTCU Thin Client UnitTEA Testing Data Active: Identifier for machine dataTIA Totally Integrated AutomationTM Terminal Module (SINAMICS)TO Tool Offset: Tool offsetTOA Tool Offset Active: Identifier (file type) for tool offsetsTRANSMIT Transform Milling Into Turning: Coordination transformation for milling operations on alatheTTL Transistor-Transistor Logic (interface type)TZ Technology cycleUUFR User Frame: Work offsetSR SubprogramUSB Universal Serial BusUPS Uninterruptible Power SupplyVVDI Internal communication interface between NC and PLCVDI Verein Deutscher Ingenieure [Association of German Engineers]VDE Verband Deutscher Elektrotechniker [Association of German Electrical Engineers]VI Voltage InputVO Voltage OutputFDD Feed DriveWSAR Smooth Approach and RetractionWCS Workpiece Coordinate SystemT ToolTLC Tool Length CompensationWOP Workshop-Oriented ProgrammingWPD Workpiece Directory: Workpiece directoryTRC Tool Radius CompensationT ToolTO Tool OffsetTM Tool ManagementTC Tool changeAppendixA.1 List of abbreviationsAxes and spindles902 Function Manual, 06/2019, A5E47437747B AA