Siemens Sinumerik 840D sl Programming Manual page 175

Examples
Example 1: Single block suppression within a program
Program code
N10 G1 X100 F1000
N20 SBLOF
N30 Y20
N40 M100
N50 R10=90
N60 SBLON
N70 M110
N80 ...
The area between N20 and N60 is executed as one step in single-block mode.
Example 2: A cycle is to act like a command for a user
Main program:
Program code
N10 G1 X10 G90 F200
N20 X-4 Y6
N30 CYCLE1
N40 G1 X0
N50 M30
Cycle CYCLE1:
Program code
N100 PROC CYCLE1 DISPLOF SBLOF
N110 R10=3*SIN(R20)+5
N120 IF (R11 <= 0)
N130
N140 ENDIF
N150 G1 G91 Z=R10 F=R11
N160 M17
CYCLE1 is processed for active single block execution, i.e., the Start key must be pressed
once to process CYCLE1.
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
Comment
; Deactivate single block
; Reactivate single block
SETAL(61000)
Flexible NC programming
1.25 Subprogram technique
Comments
; Suppress single block
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