Siemens SINUMERIK 840D sl Programming Manual page 98

Flexible NC programming
1.10 Program jumps and branches
Syntax
GOTOB <jump destination>
IF <jump condition> = TRUE GOTOB <jump destination>
GOTOF <jump destination>
IF <jump condition> = TRUE GOTOF <jump destination>
GOTO <jump destination>
IF <jump condition> = TRUE GOTO <jump destination>
GOTOC <jump destination>
IF <jump condition> = TRUE GOTOC <jump destination>
Meaning
GOTOB
GOTOF
GOTO
GOTOC
<jump destination>
:
IF
98
: Jump instruction with jump destination towards the beginning of the
program.
: Jump instruction with jump destination towards the end of the program.
: Jump instruction with jump destination search. The search is first made
in the direction of the end of the program, then in the direction of the
beginning of the program.
: Same effect as for GOTO with the difference that Alarm 14080 "Jump
designation not found" is suppressed.
This means that program execution is not interrupted in the case that
the jump destination search is unsuccessful – but is continued with the
program line following the GOTOC command.
: Jump destination parameter
Possible data include:
<jump marker>:
<block number>:
STRING type variable: Variable jump destination. The variable stands
Keyword to formulate the jump condition.
The jump condition permits all comparison and logical operations (result:
TRUE or FALSE). The program jump is executed if the result of this
operation is TRUE.
Jump destination is the jump marker (label) set
in the program with a user-defined name: <
marker>:
Jump destination is main block or sub-block
number (e.g.: ,
200 N300
for a jump marker or a block number.
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
jump
)
Job Planning