HEIDENHAIN TNC 640, User Manual, Page: 462 / 948

Programming Q Parameters | String parameters
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
Finding the length of a string parameter
The
STRLEN
function returns the length of the text saved in a
selectable string parameter.
Select Q parameter function
Press the
FORMULA
soft key
Enter the number of the Q parameter in which
the control is to save the ascertained string
length. Confirm with the
ENT
key.
Shift the soft-key row
Select the function for finding the text length of a
string parameter
Enter the number of the QS parameter from
which the control is to ascertain the length, and
confirm with the
ENT
key
Close the parenthetical expression with the
ENT
key and confirm your entry with the
END
key
Example: Find the length of QS15
37 Q52 = STRLEN ( SRC_QS15 )
If the selected string parameter is not defined the
control returns the result
-1
.