Structured Text: String conversion to UpperCase

[alexander.hefner]

Hi Martin,

Here’s a short example for changing ASCII strings to uppercase (see attached sample task):

• check byte for byte of the whole string
• if the value is between hex 61 and hex 7A, then substract hex 20 (which is the offset between A…Z and a…z in the ASCII table)
• if not, leave it as it is

UpperCase.zip (1.5 KB)