Mitsubishi MELSEC Q Series, Programming Manual

Page: 193 / 816

6.2 Arithmetic Operation Instructions
6.2.4 32-bit BIN data multiplication and division
6-31
6
BA
S
IC
INSTRUCTIONS
D*
, D/
D*, D/
D/(P)
(1) Divides the 32-bit BIN data specified for by the 32-bit BIN data specified for , and
stores the result to the variable specified for .
(2) Quotient and remainder of the division result are stored in 64-bit data.
Quotient: Stored to [0] (32 bits).
Remainder: Stored to [1] (32 bits).
(3) Values can be specified between 2147483648 and 2147483647 (BIN 32 bits) for and
.
(4) Judgment whether values for , , are positive or negative is made on the basis of the
most significant bit (b31).
(Sign is attached to both the quotient and remainder.)
• 0: Positive
• 1: Negative
O p erat i on E rror
In the following case, an operation error occurs, the error flag (SM0) is turned ON, and the
corresponding error code is stored to SD0.
• Attempt to divide by 0. (Error code: 4100)
Program E xam pl e
(1) In the following program, the BIN value in Var_D7 is multiplied by the BIN value in Var_D18
when X5 turns ON, and the result is stored to Var_D1.
[Structured ladder]
s 1 s 2
d
12 34 56 (BIN)
b 0 b15
56 7890 (BIN)
b 3 1
4 (BIN) 740 66 (BIN)
b16 b 0 b15 b 3 1 b16 b 0 b15 b 3 1 b16 b 0 b15 b 3 1 b16
s 1 s 2 d [ 1 ] d [0]
Q uotient
Remainder
d
d
s 1
s 2
s 1 s 2
d
s 2