Edge triggering indicates that an automation setting is triggered only once when conditions are met. It is triggered again when the conditions are not met and then met again.
For example, when the temperature is higher than 10°C, action A is triggered. If the current temperature is 15°C, the automation setting is triggered within 10 minutes after it is created. When the temperature is lower than 10°C for more than 10 minutes and becomes higher than 10°C, the automation setting is triggered again within 10 minutes.