Delta MH300 Series - Page 926

Chapter 16 PLC Function ApplicationsMH300
16-63
API
MUL
S1 S2 D
BIN multiplication
22
D
P
bit device
Word device
16-bit command (7 STEP)
MUL
Continuous
execution type
MULP
Pulse
execution type
32-bit command (13 STEP)
DMUL
Continuous
execution type
DMULP
Pulse
execution type
Flag signal: none
X
Y
M
K
H
KnX
KnY
KnM
T
C
D
S1
＊ ＊ ＊ ＊ ＊ ＊ ＊ ＊
S2
＊ ＊ ＊ ＊ ＊ ＊ ＊ ＊
D
＊ ＊ ＊ ＊ ＊
Notes on operand usage:
The 16-bit command operand D occupies two consecutive points.
 S1: Multiplicand. S2: Multiplier. D: Product.
 Multiplies S1 and S2 using the BIN method, and stores the product in D.
16-bit BIN multiplication operation:
S1
D
b15..........b0
X
b15..........b0
S2
=
b31..........b16b15..............b0
D
+1
b15 is a symbol bit b15 is a symbol bit
b31 is a symbol bit (b15 of D+1)
Symbol bit = 0 refers to a positive value.
Symbol bit = 1 refers to a negative value.
When D is a bit device, K1–
K4 can be designated as a hexadecimal number,
which occupies two consecutive units.
 When 16-bit DO is multiplied by 16-bit D10, the result is a 32-bit product; the
upper 16 bits are stored in D21, and the lower 16 bits are stored in D20. The bit
at the farthest left indicates the sign of the result.
X0
D0 D10
D20
MUL
D0 D10
K8M0
MUL