How to implement Ramp/Soak to the PID block in Simulink ?

I'm working on a heat treatment furnace which has to be the ramp and soak function, for example heat the muffle with 60 degree per minute,heat to the 400 degrees. Is there a way to implement ramp and soak to my pid block in Simulink ?

Answer 1

[KL]

Take the ramp block on simulink and use it as your setpoint signal.

https://de.mathworks.com/help/simulink/slref/ramp.html

Adjust your slope based on your step size, set-point and rate of temperature increase. Similarly to soak, use a negative slope. Is this what you mean?

[milad chalipa]

The ramp function is reasonable to me, but the soak is not, as I learned before, the soak function is about to make the output signal be steady-state ? how to make the output steady with negative slope ?

[KL]

Probably you want something like a step signal signalling the actual setpoint of the temperature and use it to either ramp up or ramp down (in case this change in set-point is less than the current value, hence soak).