How do I specify inverse unit labels?

[noli]

Hi,

   How can I apply inverse units, (or even to be even more general, units to any exponential power) to a control or indicator?  ie.    1/mm,   nm^2,   V^2/s.   

    I'm  using unit labels for the interface, and doing the calculations on the block diagram, but I can't verify the result because the units don't seem to mean anything.  Something that's supposed to give me 1/mm is giving dpt for example..

Thanks

[Matthew_Kelton]

Drop the 1.  Just /mm or /nm^2.  You can also use negative exponents mm^-1, nm^-2.