HEIDENHAIN TNC 640 (34059x-05) ISO programming - Manual (Page 332)

Programming: Q Parameters
9.10 String parameters
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TNC 640 | User's ManualDIN/ISO Programming | 1/2015
Converting a string parameter to a numerical value
The TONUMB function converts a string parameter to a numerical
value. The value to be converted should be only numerical.
The QS parameter must contain only one numerical
value. Otherwise the TNC will output an error
message.
Select Q-parameter functions
Select the FORMULA function
Enter the number of the parameter in which the
TNC is to save the numerical value. Confirm with
the
ENT key
Shift the soft-key row
Select the function for converting a string
parameter to a numerical value
Enter the number of the Q parameter to be
converted, and confirm with the ENT key
Close the parenthetical expression with the
ENT
key and confirm your entry with the END key
Example: Convert string parameter QS11 to a numerical
parameter Q82
N37 Q82 = TONUMB ( SRC_QS11 )