AppendixA.1 List of abbreviationsExtended FunctionsFunction Manual, 03/2013, 6FC5397-1BP40-3BA1 915QQEC Quadrant Error CompensationRRAM Random Access Memory: Read/write memoryREF REFerence point approach functionREPOS REPOSition functionRISC Reduced Instruction Set Computer: Type of processor with small instruction set andability to process instructions at high speedROV Rapid Override: Input correctionRP R Parameter, arithmetic parameter, predefined user variableRPA R Parameter Active: Memory area on the NCK for R parameter numbersRPY Roll Pitch Yaw: Rotation type of a coordinate systemRTLI Rapid Traverse Linear Interpolation: Linear interpolation during rapid traverse motionRTS Request To Send: Control signal of serial data interfacesRTCP Real Time Control ProtocolSSA Synchronized ActionSBC Safe Brake Control: Safe Brake ControlSBL Single Block: Single blockSBR Subroutine: Subroutine (PLC)SD Setting DataSDB System Data BlockSEA Setting Data Active: Identifier (file type) for setting dataSERUPRO SEarch RUn by PROgram test: Search run by program testSFB System Function BlockSFC System Function CallSGE Safety-related inputSGA Safety-related outputSH Safe standstillSIM Single Inline ModuleSK SoftkeySKP Skip: Function for skipping a part program blockSLM Synchronous Linear MotorSM Stepper MotorSMC Sensor Module Cabinet MountedSME Sensor Module Externally MountedSMI Sensor Module Integrated