ST_CM_MomentCoefficients_InitPars

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

TYPE ST_CM_MomentCoefficients_InitPars EXTENDS ST_CM_Object_InitPars :
STRUCT
    nChannels             : UDINT := 512;                                       (* Number of channels. *)
    nSubChannels          : UDINT := 0;                                         (* Number of subchannels. *)
    nOrder                : E_CM_MCoefOrder := E_CM_MCoefOrder.eCM_Kurtosis;    (* Maximum order of the moment coefficients that are calculated. *)
    bPopulationEstimates  : BOOL := FALSE;                                      (* Apply Bessel's correction to results. *)
    bKurtosisExcess       : BOOL := TRUE;                                       (* Flag if kurtosis is reduced by 3. *)
END_STRUCT
END_TYPE

• nChannels defines the number of independent channels. This must be greater than zero.
• nSubChannels defines the number of independent subchannels. This must be greater than or equal to zero.
• nOrder is the maximum order of the moment coefficients (E_CM_MCoefOrder) that are calculated. This must be an integer between one and four. The order numbers are: 0 = counter, 1 = mean value, 2 = standard deviation, 3 = skew, 4 = excess kurtosis. The number of determined coefficients is (nOrder+1).
• bPopulationEstimates is a Boolean value that indicates, whether the corresponding Bessel's correction is applied to the sample variance, skew and excess.
• bKurtosisExcess is a Boolean value that specifies whether the excess is reduced by the value of the kurtosis of a normal distribution.