How to do an if with "function"

Hello, my Output is "S7CpuStatusRun" and i want to make an if or something, that is changing the "S7CpuStatusRun" to just "Run" but i dont know how to do that because i have no idea how an if should work like this or what i could use instead of an if

I really hope someone knows the answer, that would really help me

Use a change node. See the documentation: working with messages

You probably want to use a switch node as well to "test" if the received message is 'S7CpuStatusRun' and then use the change node.