NC programming | Program section code
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HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
PROGRAM HEAD section
Instructions and information in the PROGRAM HEAD:
Unit:
Select dimensional system in millimeters or inches
No entry: The unit set in the machine parameter is used
The other fields contain organizational information and set-up
information, which do not influence the machining process
Information contained in the program head is preceded by # in the
NC program.
You can only select the Unit when creating a new NC
program. It is not possible to post-edit this entry.
Display of variables
Proceed as follows to open the variable display in the PROGRAM
HEAD:
Press the Display of variables soft key
The control opens the Definition of the variable
actual-position display form.
You can define up to 20 variables. In Program run submode or
Simulation submode, you define whether the variables are to be
displayed during program run.
Only use g variables:
g1 to g299 are freely available to the user
g5xx are reserved for the machine tool builder
g810 to g815 are used in measuring cycles
g950 to g955 are used for structure programming
For each variable you define the following:
Variable – variable number
Default value – initializing value
Description – text for displaying and requesting the variable
during program run or simulation (max. 20 characters)
Only global variables are currently supported.
Further information: "Variable types", Page 461
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