It is not something I've tested actually but if you use <b>VISA Write</b> node, the help says: "Right-click the node and select <b>Do I/O Synchronously</b> from the shortcut menu to write data synchronously. The operation returns only when the transfer terminates."
Take also a look at <b>VISA Flush I/O Buffer</b>. With a mask 32, it is supposed to return after the TX buffer is emptied.
