ioSynchronize (Function)

This function will update all the in- and outputs on the external I/O devices.

This function is required to update the external I/O devices when using synchronous update mode (see ioSetMode).

Note: this function does not update the VPL variables bound to in- and outputs. To update the variables you need the BEGIN/END construction or the UPDATEIO construction.

Input:

None.

Returns:

Declaration:

FUNCTION ioSynchronize;

Example:

INCLUDE rtcu.inc
 
PROGRAM ModbusExample;
 
ioSetMode(mode := 1);
 
BEGIN
  ioSynchronize();   // Update the external I/O
  ...
END;
END_PROGRAM;