Hello all! I'm new to the forum and have a small question about wiring.

I'm trying to wire one bone's rotation to another's so that the first only rotates after the second's rotation is more than 90°. (it's for a piece of shoulder armor, it's only supposed to rise with the arm when the arm is raised a certain amount, I don't want the shoulder armor to always rotate with the arm because that would look silly ^^)
This is what I have so far:

if(B_ArmUpper_L>90) then degToRad(B_ArmUpper_L)

The B_ArmUpper_L is the bone in the arm that the shoulder piece is being wired to. The error I keep getting is: "-- No "">"" function for undefined"

I hope I get a response quickly, this is annoying me lol

---