2. Subprogram with M17 in the last traversing block
Program code Comment
N10 G64 F2000 G91 X10 Y10
N20 X10 Z10 M17 ; Return jump without interruption of continuous-
path mode.
3.2.2.9 RET subprogram return
The RET command can also be used in the subprogram as a substitute for the M17 return jump
command. RET must be programmed in a separate part program block. Like M17, RET prompts
the return to the calling program at the part program block following the subprogram call.
Note
Parameters can be programmed to change the return jump behavior of RET (see
"Parameterizable subprogram return jump (RET ...) (Page 512)").
Application
The RET operation should then be used if a G64 continuous-path mode (G641 to G645) is not
to be interrupted by the return jump.
Requirement
The RET command can only be used in subprograms, which were not defined with the SAVE
attribute.
Syntax
PROC <program name>
...
RET
Example
Main program:
Program code Comment
PROC MAIN_PROGRAM ; Start of the program
...
N50 SUB_PROG ; Subprogram call: SUB_PROG
N60 ...
...
N100 M30 ; End of program
Work preparation
3.2 Subprogram technique
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0 511
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