Need an advice on Omron E5AN-H

Hello, people. I need some advice on Omron E5AN-H.
I have to set the Control Output 1 On when the temperature is 15 degrees higher of Setpoint, and have to set it Off when the temperature is 15 degrees lower of Setpoint. For now it is assigned to Alarm 2 which has Type 2 and value 15, but it is not exactly what I need. I could probably latch the alarm, but I don't know how to unlatch it.
Any suggestions?

http://industrial.omron.com.br/uploads/arquivos/E5AN.pdf
I would look at 4-2 Alarm Hysteresis in the above manual.
If you program in an alarm hysteresis of 30 for alarm 2 this should work for you. The alarm will turn on 15 degrees above the setpoint. The alarm will turn off 30 degrees below this turn on point.
Regards,

Thank you very much, this is exactly what I was looking for.