Bcd 8-Digit Multiplication And Division Operations (Db*(P),Db/(P)) - Mitsubishi MELSEC Q Series Programming Manual

DB*(P),DB/(P)
6.2.8
BCD 8-digit multiplication and division operations
(DB*(P),DB/(P))
DB*(P),DB/(P)
DB , DB/
*
DB P, DB/P
*
Setting
Data
S1
S2
D
Function
DB*
(1) Multiplies the BCD 8-digit data designated by
and stores the product at the device designated by
(2) If
D
product, and the higher 8 digits (upper 32 bits) cannot be designated.
K1 ....Lower 1 digit (b0 to 3), K4 ....Lower 4 digits (b0 to 15), K8.....Lower 8 digits (b0 to 31)
(3) 0 to 99999999 (BCD 8 digits) can be assigned to
DB/
(1) Divides 8-digit BCD data designated by
stores the result in the device designated by
6-44
Command
Command
: Data to be multiplied/divided or head number of the devices where the data to be multiplied/divided is stored
S1
(BCD 8 digits)
: Data for multiplying/dividing or head number of the devices where the data for multiplying/dividing is stored
S2
(BCD 8 digits)
: Head number of the devices where the multiplication/division operation result will be stored (BCD 16 digits)
D
Internal Devices
R, ZR
Bit Word
S1
S1 +1
9 9 9 9 9 9 9
D
9 9
has designated a bit device, the lower 8 digits (lower 32 bits) will be used for the
S1 +1 S1
5 6 7 8 9 1 2
D +1
Quotient (Upper 4 digits)
0 0 0
Basic
indicates an instruction symbol of
P
J \
U \G
Bit Word
and the BCD 8-digit data designated by
S1
.
D
S2 +1 S2
9 9 9 9 9 9 9
+3 D +2 D +1
9 9 9 9 9 8 0 0 0
and
S1
and 8-digit BCD data designated by
S1
.
D
S2 +1 S2
3 / 0 1 2 3 4 5
Digits exceeding the designated number of digits
are assumed to be 0
D D +3
(Lower 4 digits) Remainder (Upper 4 digits)
0 0 0 4 5 0 1 2
High
Process
Redundant Universal
performance
DB ,DB/ *
S1 S2 D
D
S1 S2
Constants
Zn
K, H
––
9 9
D
0 0 0 0 1
.
S2
S2
6 7
D +2
(Lower 4 digits)
3 3 6 0 8
LCPU
.
Other
––
––
––
,
S2
, and