ST_CM_Correlation_InitPars

Function block-specific structure with initialization parameters, which are analyzed when the function block is initialized.

TYPE ST_CM_Correlation_InitPars EXTENDS ST_CM_Object_InitPars :
STRUCT
    nNegativeShift   : UDINT := 0;                                               (* Maximum negative time shift in samples. *)
    nPositiveShift   : UDINT := 0;                                               (* Maximum positive time shift in samples. *)
    nStepsize        : UDINT := 0;                                               (* Stepsize in Samples. *)
    eCorrelationMode : E_CM_CorrelationMode := E_CM_CorrelationMode.eCM_Normed;  (* Calculation mode of correlation. *)
    eWindowMode      : E_CM_WindowMode := E_CM_WindowMode.eCM_FixWindow;         (* Window handling, i.e. sliding, fixed, continuous. *)
    nWindowLength    : UDINT := 1000;                                            (* Length of analysis window. *)
    nChannels        : UDINT := 1;                                               (* Number of channels. *)
END_STRUCT
END_TYPE

• nNegativeShift specifies the maximum time shift in the negative direction in samples.
• nPositiveShift specifies the maximum time shift in the positive direction in samples.
• nStepsize defines the step size in samples in which the correlation coefficients are calculated.
• eCorrelationMode defines the calculation variant for the correlation parameters.
• eWindowMode defines the window on which the calculation is based. The length of the window is determined by the parameter nWindowLength.
• nWindowLength is the length of the analysis window in samples. The length must be greater than one and an even number.
• nChannels defines the number of independent channels. This must be greater than zero.