Hi
The PLVAR and NSOL are /post26 commands (not post1 like the apdl snippet we get in Mech.) and we also need to create an image (/show command) for each plot in order to view the result.
As an example for say node nr. 1608:
/POST26
NSOL,10,1608,U,Z
/SHOW,PNG
PLVAR,10
/SHOW,CLOSE
/POST1
All the best
Erik