Mitsubishi MELSEC Q Series Programming Manual page 266

DBK+(P),DBK-(P)
(6) The following will happen if an overflow occurs in an operation result:
The carry flag in this case is not turned on.
・ K2147483647
(7FFFFFFF
・ K 2147483647
(80000001
Operation Error
(1) In any of the following cases, an operation error occurs, the error flag (SM0) turns on, and an
error code is stored into SD0.
• A negative value is specified for n.
• The range of the n-point devices starting from the device specified by
exceeds the specified device range.
• The range of the n-point devices starting from the device specified by
range of the n-point devices starting from the device specified by
that
• The range of the n-point devices starting from the device specified by
range of the n-point devices starting from the device specified by
6-64
−K−2
) ( 80000001
(00000002
)
H
H
−K2
( FFFFFFFE ) ( 7FFFFFFF
)
H
H
and specify the same device.
S1 D
)
H
K2147483647
)
H
(Error code: 4100)
, , or
S1 S2 D
(Error code: 4101)
overlaps with the
S1
. (Exclude the case
D
(Error code: 4101)
overlaps with the
S2
. (Error code: 4101)
D