Mitsubishi Electric MELDAS C6 Programming Manual page 181

D*, D*P ... BIN 32-bit multiplication
Bit device
X Y M L F B SB T SM V T
S1
S2
D
D *
D*P
Function
(1) The BIN data designated with S1 and the BIN data designated with S2 are multiplied, and the
multiplication results are stored in the device designated with D.
S1+1 S1
B31......B16B15......B0
567890 (BIN)
(2) -2147483648 to 2147483647 (BIN 32-bit) can be designated in S1 and S2.
(3) The positive/negative of the data in S1, S2 and D is determined with the highest-order bit (B31 for
S1 and S2, B63 for D).
B31/B63
positive/negative
0
1
8. Function Commands
D*, D*P
Usable device
Word device
C D R W SW Z SD K
Multiplication command
D * S1 S2
S1 S2
D*P
S2
S2+1
B31......B16B15......B0
×
123456 (BIN)
Judgment of
Positive
Negative
- 172 -
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Con-
Pointer
stant
H
Setting data
Multiplication data or head No. of device
S1
where multiplication data is stored.
D
Multiplication data or head No. of device
S2
where multiplication data is stored.
Head No. of device to store multiplication
D
D
results.
D+3 D+2
B63...B48B47...B32B31...B16B15...B0
70109427840 (BIN)
Digit
No. of
desig- Index
steps
nation
P
5/6
D
D+1