Compares an analog value ( signal or parameter) to a high
 limit.

 Both the input signal and the limit can be either
 constants, defined by the Attribute Editor, or ordinary
 analog signals.

 The output is TRUE when the input signal is greater
 than the high limit i.e. Lim. The hysteresis is taken
 into account when the output signal is to be FALSE. The
 output becomes FALSE as soon as the input becomes less
 than or equal to the high limit minus the hysteresis.

• Compl

 Specifies the actual high limit. The value may be
 dynamic or static.

 The value that will be compared to the limit.

 The flag specifies if In exceeds the high limit or not.
 FALSE means that In does not exceed the limit; TRUE
 means that In exceeds the limit or has exceeded the
 limit but do not get a level, in according to the
 hysteresis, where the flag is to be reset.

 Specifies the hysteresis. A value < 0 is not valid.

 The operator's authorities to change Lim. There is no
 meaning to change the attribute manual, if it also
 being updated by an external signal.
  0   -- Changes not allowed.
  !=0 -- Changes allowed.

 The minimum and maximum allowed value of Lim at changes
 made by an operator.

 The operator's authorities to change Hysteres.

 The minimum ( >= 0) and maximum allowed value of
 Hysteres at changes made by an operator.