Siemens SINUMERIK 840D sl Programming Manual page 197

<block after
destination block>:
<number of
return jump levels>:
<return jump to the
beginning of the
program>:
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
Return jump parameter 2
Refers to the return jump parameter 1.
Type: INT
Value: 0 Return jump is made to the block that
was specified using return jump
parameter 1.
> 0 Return jump is made to the block that
follows the block specified with return
jump parameter.
Return jump parameter 3
Specifies the number of levels that must be jumped back
in order to reach the program level in which program
execution should be continued.
Type: INT
Value: 1 The program is resumed at the "current
program level - 1" (like RET without
parameter).
2 The program is resumed at the "current
program level - 2", i.e. one level is
skipped.
3 The program is resumed at the "current
program level - 3", i.e. two levels are
skipped.
...
Value
range: 1 ... 15
Return jump parameter 4
Type: BOOL
Value: 1 If the return jump is made into the main
program and an ISO dialect mode is
active there, then the program branches
to the beginning of the program.
Flexible NC programming
1.25 Subprogram technique
197