You can use the Analog Alarm block to obtain temperature readings of an oven. When the oven is off and cooling, the operator can suspend alarms. The following figure shows an example of how to use an Analog Alarm block.
When the oven is first turned on, Low Low and Low alarms could be delayed to allow the oven to heat up. High and High High alarms could be reissued until the operator turns down the temperature. If the block remains in a High alarm for more than a predefined time interval, you could assign a Digital Output block as a contact to trigger an alert and notify the operator to reduce the oven temperature. If the block then generated a High High alarm, you could assign a different Digital Output block as a contact to automatically reduce the oven temperature.
