PredictRef

Syntax

Definition:

METHOD PredictRef : BOOL
VAR_INPUT
    pDataInp       : PVOID;
    nDataInpDim    : UDINT;
    fmtDataInpType : ETcMllDataType;
    pDataOut       : PVOID;
    nDataOutDim    : UDINT;
    fmtDataOutType : ETcMllDataType;
    sEngineRef     : T_MaxString;
    nConcurrencyId : UDINT;
END_VAR

Inputs

Name	Type	Description
pDataInp	PVOID	Pointer to the input data array (e.g. ARRAY[0..10] OF REAL in PLC)
nDataInpDim	UDINT	Number of inputs in the current vector
fmtDataInpType	ETcMllDataType	ETcMllDataType data type of input array
pDataOut	PVOID	Pointer to the output data array (e.g. ARRAY[0..10] OF REAL in PLC)
nDataOutDim	UDINT	Number of outputs in the current vector
fmtDataOutType	ETcMllDataType	ETcMllDataType data type of output array
sEngineRef	T_MaxString	Reference string of model engine (or parameter set) used for prediction, use default value 0 if there are no multi-engines used
nConcurrencyId	UDINT	Id of the processing thread. Important: Never have two concurrently processing threads use the same id.

Return value

BOOL

The method performs the inference of the loaded model with the given input data and stores the result in the output data. Use configure method to load a ML model description file before calling PredictRef method.

For the inputs and outputs a pointer, the number of inputs/outputs and the data type are needed.

Sample call:

dtype      : ETcMllDataType.E_MLLDT_FP32_REAL;
nInputDim  : UDINT := 3;
nOutputDim : UDINT := 2;
nInput     : ARRAY[1..3] OF REAL;
nOutput    : ARRAY[1..2] OF REAL;
sCurrentEngineRef: T_MaxString := 'EngineRef';
nConcurrencyId : UDINT := 0;

fbprediction.Predict(
        pDataInp:=ADR(nInput) , 
        nDataInpDim:= nInputDim, 
        fmtDataInpType:= dtype, 
        pDataOut:=ADR(nOutput) , 
        nDataOutDim:= nOutputDim, 
        fmtDataOutType:= dtype, 
        sEngineRef:= sCurrentEngineRef, 
        nConcurrencyId:= nConcurrencyId );