Yaskawa J50M Instructions - Manual (Page 119)

Notes :
1. DO m should be specified before END m.
2. m of DO m and END m should have the same
value. However, only 1, 2, or 3 can be specified in m.
DO 1
The value of m, 1, or 3
is called the identification
number, which is used by
, DO a n d call -
other.
3.
END 2 - J
The same identification number can be used
repeatedly except where repeat ranges overlap.
4. GOTO n enables to get out of DO loop but it does
not enable to get into DO loop as shown below :
GOTO 100 ;
END 1 ;
N1OO ;
GOTO 100 ;
;
n
END 1 ;
5. Triple DO-loop nesting is permitted for each
micro program.
D 0 2 ;
D 0 3 ;
. . ABC ;
END 3 ;
END 2 ;
END 1 ;
Enabled
DO 2;
D 0 3 ;
I .
END 3 ;
END 2 ;
END 1 ;
I
Enabled
6. The shown below cause an error:
(i) D O 1 ;
1
The return destination
?
D O 1 ;
of END 1 is unknown.
END 1
(ii)
(iii)
(iv)
(v)
One END 1 is missing.
END 1 ;
END 1
D O 1 ;
1
—
D 0 2 ;
END 1 ;
Overlap of DO
ranges is not
D 0 2 ;
permitted.
Rewrite
END 2 ;
shown right.
—
I
END 2 ; - J
D O 1 ;
D 0 2 ;
D 0 3 ;
‘ 0 1 ; Q u a d r u p l e n e s t i n g .
Max. nexting permit-
ted is triple.
END 1 ;
END 3 ;
END 2 ;
END 1 ;
D O 1 ;
DO loop can not
be entered from
END ;
outside.
. . GOTO 7000 ;