AppendixA.1 List of abbreviationsSpecial functions: AppendixFunction Manual, 11/2006, 6FC5397-2BP10-2BA0 7EnDat Encoder interfaceEPROM Erasable Programmable Read Only MemoryEQN Designation for an absolute encoder with 2048 sine signals per revolutionI/R Infeed/regenerative feedback unit of SIMODRIVE 611(D)ES Engineering SystemESR Extended stop and retractETC ETC key ">": Softkey bar extension in the same menuFFB Function block (PLC)FC Function Call: Function block (PLC)FEPROM Flash EPROM: Read and write memoryFIFO First In First Out: memory which works without address specification and whose dataare read in the order in which they were stored.FIPO Fine InterPOlatorFRAME Coordinate transformationCRC Cutter Radius CompensationFST Feed STop: Feed stopFW FirmwareGGC Global Control (Profibus: Broadcast telegram)GEO Geometrie, e.g. geometry axisGIA Gear Interpolation dAta: Gear interpolation dataGND Signal GrouNDBP Basic Program (PLC)GS Gearbox stageGSD Device master file for desribing a Profibus slaveGSDML Generic Station Description Markup Language: XML-based description language forcreating a GSD fileGUD Global User Data: Global User DataHHEX Abbreviation for hexadecimal numberAuxF Auxiliary functionHMI Human Machine Interface, SINUMERIK operator interfaceMSD Main Spindle DriveHW HardwareHW Config SIMATIC S7 tool for configuration and parameterization of hardware componentswithin an S7 project