Save Modal G Functions (Save) - Siemens SINUMERIK 840D sl Programming Manual

Flexible NC programming
1.25 Subprogram technique
Note
With arrays of an undefined array length, subprograms can process arrays of variable length
as formal parameter. When defining a two-dimensional array as a formal parameter, for
example, the length of the 1st dimension is not specified. However, the comma must be
written.
Example: PROC <program name> (VAR REAL ARRAY[,5])
Example
Definition of a subprogram with 2 parameters as reference to REAL type:
Program code
PROC SUB_PROG(VAR REAL LENGTH, VAR REAL WIDTH)
...
N100 RET
1.25.2.4

Save modal G functions (SAVE)

Function
The SAVE attribute means that before the subprogram call, active modal G functions are
saved and are re-activated after the end of the subprogram.
CAUTION
Uninterruptible continuous-path mode
SAVE must not be used if continuous-path mode is active and should not be interrupted by
the subprogram call.
Syntax
PROC <subprogram name> SAVE
178
Comment
; Parameter 1: Reference to type: REAL,
name: LENGTH
Parameter 2: Reference to type: REAL,
name: WIDTH
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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