FB_PMA_TaskTransfer_Send

The function block FB_PMA_TaskTransfer_Send can be used to transfer data from a slow task back to a fast task. This may be necessary if computationally intensive algorithms were swapped out to a slow task and the results are required in another task.

Together with the function block FB_PMA_TaskTransfer_Receive, it forms a function block pair for sending and receiving data. The data is passed to a function block with the target analysis ID after each call of the Call method.

The output buffers are provided for the function blocks whose ID is entered in the array of target IDs. The buffer to be initialized must be sufficient to cover the data to be transmitted.

Syntax

Definition:

FUNCTION BLOCK FB_PMA_TaskTransfer_Send
VAR_INPUT
    nOwnID            : UDINT;
    aDestIDs          : ARRAY[1..GVL_PMA.cMA_MaxDest] OF UDINT;
    nResultBuffers    : UDINT := 4;
    tTransferTimeout  : LTIME := LTIME#40US;
    stInitPars        : ST_PMA_TaskTransfer_InitPars;
END_VAR
VAR_OUTPUT
    bError            : BOOL;
    ipResultMessage   : I_TcMessage;
    bNewResult        : BOOL;
    nCntResults       : ULINT;
END_VAR

Inputs

The input parameters of this function block represent initialization parameters and have to be assigned during the declaration of the function block instance (alternatively: Init method). They may only be assigned once. A change at runtime is not possible.

Outputs

Methods

Requirements