Description: The hysteresis value for the threshold. After a variable's threshold is triggered, the value of the variable must either drop below or rise above a certain value (depending on the setting of the Direction of Approach to Thresh variable), the hysteresis, before another trigger can be recognized.

For example, if you set the threshold for module temperature to 80, the threshold is triggered the first time the temperature rises above 80. If you also set the hysteresis for this threshold to 60, the threshold will only be triggered again if the temperature drops below 60, and then rises past 80. If the temperature drops from 80 to 70, and then goes back to 80, the threshold is not triggered.

If the hysteresis value is less than the threshold value, the variable's value must drop below the hysteresis before another trigger is recognized. If the hysteresis value is greater than the threshold value, the variable's value must rise above the hysteresis before another trigger is recognized.

The value of the hysteresis depends on the value of the threshold and whether the value of the variable is rising or falling; therefore, set this variable in conjunction with both the Threshold Value and Direction of Approach to Thresh variables.

This variable is relevant only to thresholds set on Gauge variables.