Siemens SINUMERIK 840D sl Programming Manual page 181

Restrictions
● Single block suppression and block display
● Single block suppression in the system ASUB or user ASUB
● Special features of single block suppression for various single block execution types
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.
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
The current block display can be suppressed in cycles/subprograms using DISPLOF.
IfDISPLOF is programmed together withSBLOF, then the cycle/subprogram call continues
to be displayed on single-block stops within the cycle/subprogram.
If the single block stop in the system or user ASUB is suppressed using the settings in
machine data MD10702 $MN_IGNORE_SINGLEBLOCK_MASK (bit0 = 1 or bit1 = 1),
then the single block stop can be re-activated by programming SBLON in the ASUB.
If the single block stop in the user ASUB is suppressed using the setting in machine data
MD20117 $MC_IGNORE_SINGLEBLOCK_ASUP then the single block stop cannot be
reactivated by programming SBLON in the ASUB.
When single block execution SBL2 is active (stop after each part program block) there is
no execution stop in the SBLON block if bit 12 is set to "1" in the
MD10702 $MN_IGNORE_SINGLEBLOCK_MASK (prevent single block stop).
When single block execution SBL3 is active (stop after every part program block - also in
the cycle), the SBLOF command is suppressed.
Comment
; Deactivate single block
; Reactivate single block
Flexible NC programming
1.25 Subprogram technique
181