HEIDENHAIN iTNC 530 (340 49x-03) ISO programming - Manual (Page 528)

528 11 Programming: Q Parameters
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.9 Str
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11.9 String Parameters
String processing functions
You can use the QS parameters to create variable character strings.
You can assign a linear sequence of characters (letters, numbers,
special characters and spaces) to a string parameter. You can also
check and process the assigned or imported values by using the
functions described below.
The STRING FORMULA and FORMULA Q-parameter functions
contain various functions for processing the string parameters.
STRING FORMULA functions Soft key Page
Assigning string parameters Page 529
Chain-linking string parameters Page 529
Converting a numerical value to a string
parameter Page 530
Copying a substring from a string
parameter Page 531
FORMULA string functions Soft key Page
Converting a string parameter to a
numerical value Page 532
Checking a string parameter Page 533
Finding the length of a string parameter Page 534
Comparing alphabetic priority Page 535
When you use a STRING FORMULA, the result of the
arithmetic operation is always a string. When you use the
FORMULA function, the result of the arithmetic operation
is always a numeric value.