PLC-API Description of the output behaviour: VAR_INPUT VAR_INPUT fIn : FLOAT; END_VAR fIn : Input value for the function block. VAR_OUTPUT VAR_OUTPUT fOutPos : FLOAT; fOutNeg : FLOAT; bOutPosIsActive : BOOL; bOutNegIsActive : BOOL; eErrorId : E_CTRL_ERRORCODES; bError : BOOL; END_VAR fOutPos : Positive part of fIn. fOutNeg : Negative part of fIn. bOutPosIsActive : TRUE indicates that fIn > 0.0, TS4100 136 Version: 1.1