Add a variable type 'byte'

Add a variable type 'byte'

hello,
I have a value of the type byte stored in my datablock. I'm working with siemens step7.
Now i want to have this value on my screen.
But when i want to add this variable i cannot choose the datatype byte.
I can see it in the sub-tree 'datatypes'. But it is not shown in the 'wizard' when i want to add a variable. I only can see int,reals and unsigned int's.

what am i missing or doing wrong? It seems to be a very basic datatype.

This is a migrated post! Originally posted on 27.05.2013 by user martijnvanspijk. Please be aware that information can be outdated.