Learning Ladder diagram

Hello,

Right now, I am learning ladder diagram through Carel and now I am kind of confused as to why my variable "SV1" is not turning to bool 'true'. Does anyone know where I went wrong?

https://preview.redd.it/2267l5gbat1e1.png?width=733&format=png&auto=webp&s=ec48d588a73e61e61c0948557ad16a04c8ad956a