FiFoOverwrite
FiFoOverwrite reads position data for iColDim FIFO channel axes from AdrDataArray and transfers iRowsToWrite entries to the FIFO. Existing FIFO data will be overwritten.
Interface
VAR_INPUT
iChannelId : UDINT;
AdrDataArray : POINTER TO LREAL; (* PLC: ARRAY[ ROWS, COLUMNS ] OF LREAL *)
iColDim : UDINT; (* second array dimension (COLUMNS) *)
iRowsToWrite : UDINT; (* number of rows to write <= RowDim *)
bExecute : BOOL;
tTimeout : TIME;
END_VAR
VAR_OUTPUT
bBusy : BOOL;
bErr : BOOL;
iErrId : UDINT;
END_VAR
iChannelId: Channel ID of the FIFO channel.
AdrDataArray: The address of a data field containing position data for the master and slave axes. The first of the field's dimensions describes the table lines, and the second dimension describes the columns.
iColDim: Number of columns in the data field. This value must correspond to the actual size of the second field dimension.
iRowsToWrite: Number of table lines. This value may be less than or equal to the size of the first field dimension.
bExecute: Edge-triggered signal for execution of the command.
tTimeout: ADS timeout (about 1 second).
bBusy: Becomes TRUE with a rising edge at bExecute, and remains TRUE until the block has executed the command.
bErr: Becomes TRUE if an error occurs while executing the command.
bErrId: Error number (ADS or NC error number).