How set set variables?

The question is very simple but somehow I cannot solve it. I have a system where I calculate 1 + x each time, whereby the x always takes on a new value or always increases by 1. But I don't know how I have to enter the x in simulink or how I can define this variable in Simulink

[Hami Güclücan]

I know the question is definitely easy to solve, but a simple explanation would be very nice. Thank you in advance

[Ameer Hamza]

How is x calculated?

[Hami Güclücan]

It’s a Number. Starting by 0 and everytime +1.

[Ameer Hamza]

You can use ramp block in Simulink to create a variable which increases by a fixed amount after each time-step.

Answer 1

[Nishant Gupta]

You can use Stair Generator block to do that. Refer to the attached model.