Long and short form
Most mnemonics have a long form and a short form. Either the long form or the short form can be entered per mnemonic. Other abbreviations are not permitted. The short form is marked by uppercase letters.
The uppercase and lowercase notation only serves to distinguish the two forms in the documentation. The instrument itself is case-insensitive.
Example
The following command notations are equivalent:
HCOPy:DEVice:COLor ON
HCOP:DEV:COL ON
HCOPy:DEV:COLor ON
hcop:device:color on