transient structural in ansys workbench

[androzzz]

I have a problem while working in transient structural about the degree of freedom solution, i have a beam and i want to know its displacement every a certain time step while applying a force on it and i use *get command (*get,e1,node,3,u,z) there is a warning appear tell me that the degree of freedom solution is not available so line of *get command will be ignored so how can i give the degree of freedom solution and from where? Thank you