HEIDENHAIN TNC 640 (34059x-02) ISO programming - Manual (Page 292)

Programming: Q Parameters
9.10 String parameters
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TNC 640 | User's Manual for DIN/ISO Programming | 5/2013
Assigning string parameters
You have to assign a string variable before you use it. Use the
DECLARE STRING command to do so.
Show the soft-key row with special functions
Select the menu for defining various plain-
language functions
Select string functions
Select the DECLARE STRING function
Example NC block
N37 DECLARE STRING QS10 = "WORKPIECE"
Chain-linking string parameters
With the concatenation operator (string parameter || string
parameter) you can make a chain of two or more string parameters.
Show the soft-key row with special functions
Select the menu for defining various plain-
language functions
Select string functions
Select the STRING FORMULA function
Enter the number of the string parameter in
which the TNC is to save the concatenated string.
Confirm with the ENT key
Enter the number of the string parameter in which
the first substring is saved. Confirm with the ENT
key: The TNC displays the concatenation symbol
||
Confirm your entry with the ENT key
Enter the number of the string parameter in which
the second substring is saved. Confirm with the
ENT key
Repeat the process until you have selected all the
required substrings. Conclude with the END key