An (AUX) task is an optional, periodic processor task that is run through its programming software. The AUX task is used to execute a part of the application requiring a low priority. This task is executed only if the MAST and FAST tasks have nothing to execute. The AUX task has two sections:

• IN: Inputs are copied to the IN section before execution of the AUX task.

• OUT: Outputs are copied to the OUT section after execution of the AUX task.