Omron CS1W-MC221 -, Руководство по эксплуатации

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G-language Commands Section 7-3
7-3-23 G70: UNCONDITIONAL JUMP
Unconditionally jumps to the specified block.
Format G70_<jump destination block number> [/L<number of loops>]
Operands The following table shows the possible settings for the operands.
Description This command unconditionally jumps to the specified block. A fixed number of
jumps (a loop) can be created by specifying a number of loops.
When a number of loops is specified, the destination block number must be
before the current block number.
If an UNCONDITIONAL JUMP (G70) or a CONDITIONAL JUMP (G71) com-
mand is used to exit a loop before the number of loops has counted down to
zero and the jump is to a program location after the loop, the number of loops
will be cleared when another loop is started.
A second loop cannot be executed while a loop is in progress. The following
diagram demonstrates this programming error.
Loops cannot be nested as shown above, but up to six loops can be nested by
calling subroutines containing loops. The number of loops in each subroutine
is cleared when the subroutine ends. Refer to
7-3-25 G72: SUBROUTINE
JUMP for details.
When the number of loops is set indirectly from position data with register
specification or position data number specification, the number of loops will be
0 if the value of the position data is 0. Non-integer position data values will be
rounded off to the nearest integer value. An error will also occur if the position
data is negative.
Programming Example The following example shows executing another loop when a given condition
occurs in the first loop
.
: :
N020 G00 X100
N030 G71 N090/A1000=1
N040 G70 N020/L100
. . . . . . . . .
A
: :
: :
N090 G00 X3200
N100 G70 N090/L50
. . . . . . . . . .
B
: :
In loop
A
, the program will jump to N020 up to 100 times while A1000
≠
1, so
blocks N020 and N030 will be executed up to 101 times.
In loop
B
, the program will jump to N090 up to 50 times, so block N090 will be
executed up to 51 times.
Operand Possible settings
Destination block number N000 to N999
Number of loops 1 to 39,999,999
(E00) to (E31)
A0000 to A1999
N003 G01 X100 Y100 F100
: :
N007 G70 N003/L10
: :
N010 G70 N003/L5