Mitsubishi MELSEC QCPU User Manual

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MELSEC-Q/QnA
6 BASIC INSTRUCTIONS
(3) The constant designated by
S2
can be between -32768 to 32767 (BIN 16 bits).
+
(BIN)
(BIN)
(BIN)
5555
8888
(BIN)3087
(BIN)
8321
(BIN)
(BIN)
(BIN)
b15 - - - - - - - b0
1234
4567
-2000
(BIN)-1234
(BIN)
4000
+1
+(n-2)
+(n-1)
n
(BIN)4321
S1S1
DD
S1S1
+2
S1S1
S1S1
S1S1
S2
+1
+(n-2)
+(n-1)
+2
n
2321
DD
DD
DD
DD
b15 - - - - - - - b0
b15 - - - - - - - b0
(4) The following happens if an underflow or overflow is generated in the operation results:
The carry flag in this case does not go ON.
•
K32767
(H7FFF)
•
K-32767
(
H8000
)
+K-2
+K2
K-32767
K32766
(H0002) (H8001)
(
HFFFE
)
(
H7FFE
)
BK
–
(1) Subtracts n-points of BIN data from the device designated by
S1
and n-points of BIN data from
the device designated by
S2
and stores the result from the device designated by
D
onward.
(BIN)
(BIN)
(BIN)
1234
5678
9876
(BIN)4321
(BIN)
4000
(BIN)
(BIN)
(BIN)
7531
3210
-551
(BIN)679
(BIN)
352
(BIN)
(BIN)
(BIN)
b15 - - - - - - - b0
8765
8888
9325
(BIN)5000
(BIN)
4352
+1
+2
+(n-2)
+(n-1)
n
S1
S2
D
S1
S1
S1
S1
+1
+2
+(n-2)
+(n-1)
S2
S2
S2
S2
n
+1
+2
+(n-2)
+(n-1)
n
D
D
D
D
-
b15 - - - - - - - b0 b15 - - - - - - - b0
(2) Block subtraction is performed in 16-bit units.
(3) The constant designated by
S2
can be between-32768 to 32767 (BIN 16 bits).
(BIN)8880
(BIN)
(BIN)
(BIN)
8
445
(BIN)
(BIN)
(BIN)
(BIN)
(BIN)
b15 - - - - - - - b0
8765
8888
9325
(BIN)5000
(BIN)
4352
+1
+2
+(n-2)
+(n-1)
n
S1
S2
D
S1
S1
S1
S1
+1
+2
+(n-2)
+(n-1)
n
D
D
D
D
-115
-4528
-3880
-
b15 - - - - - - - b0
b15 - - - - - - - b0
(4) The following happens if an underflow or overflow is generated in the operation results:
The carry flag in this case does not go ON.
•
K-32768
(H8000)
•
K32767
(H8000)
-K-2
-K2
K32766
-32766
(H0002)
(H8001)(H0002)
(H7FFF)
[Operation Errors]
(1) In the following cases an operation error occurs, the error flag (SM0) turns ON, and an error
code is stored at SD0.
• The n-bit range from the
S1
,
S2
, or
D
device exceeds the range of that device.
• The device range for n points starting from the device designated by
S1
overlaps with the
device range for n points starting from the device designated by
D
. (Error code: 4101)
• The device range for n points starting from the device designated by
S2
overlaps with the
device range for n points starting from the device designated by
D
. (Error code: 4101)
• The device range for n points starting from the device designated by
S1
overlaps with the
device range for n points starting from the device designated by
S2
. (Error code: 4101)
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Mitsubishi MELSEC QCPU Specifications

General

Brand	Mitsubishi
Model	MELSEC QCPU
Category	Controller
Language	English