If the block is in Auto mode, the OUT and FUTURE status are set to Bad if any of the process inputs used in the NN block are Bad. When one or more inputs have a status Uncertain and the remaining inputs have Good status, the status of the outputs is set to Uncertain. Also, if inputs are Good and the input values are within the data range used to train the neural network, then the OUT status is set to Good. The OUT status is set to Uncertain if one or more of the input values is outside the data range used to train the neural network or if the OUT value is outside the training range.
In Manual mode, the status of FUTURE is determined the same as in Auto. However, the status of OUT is set to Good Constant status, unless its value is outside the training range, in which case it is Uncertain.
In Out of Service mode, the status of OUT and FUTURE is set to Bad.
If more than five inputs have values outside the training range, the corresponding prediction (OUT and/or FUTURE) has Bad status.
If an input has a Const or Uncertain status, OUT and FUTURE have Uncertain status.