Delta DVP-PLC, Applications Manual

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6 Application Instructions API 00-49
DVP-PLC Application Manual 6-35
API Mnemonic Operands Function
22 D MUL P Multiplication
Controllers
ES/EX/SS SA/SX/SC EH/SV
Bit Devices Word Devices Program Steps Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S
1
* * * * * * * * * * *
S
2
* * * * * * * * * * *
D * * * * * * *
MUL, DMULP: 7 steps
DMUL, DMULP: 13 steps
PULSE 16-bit 32-bit
ES EX SS SA SX SC EH SV ES EX SS SA SX SC EH SV ES EX SS SA SX SC EH SV
Operands:
S
1
: Multiplicand
S
2
: Multiplicator
D
: Product
Explanations:
1. If
S
1
and
S
2
are used in device F, only 16-bit instruction is applicable.
2. If
D
is used in device E, only 16-bit instruction is applicable.
3. In 16-bit instruction,
D
occupies 2 consecutive devices.
4. In 32-bit instruction,
D
occupies 4 consecutive devices.
5. See the specifications of each model for their range of use.
6. This instruction multiplies
S
1
by
S
2
in BIN format and stores the result in
D
. Be careful with the positive/negative
signs of
S
1
,
S
2
and
D
when doing 16-bit and 32-bit operations.
7. In 16-bit BIN multiplication,
b15................ b00
X
=
b15................ b00 b31............ b16 b15............. b00
+1
b15 is a symbol bit b15 is a symbol bit
b31 is a symbol bit D+1)
(b15 of
Symbol bit = 0 refers to a positive value.
Symbol bit = 1 refers to a negative value.
When D serves as a bit device, it can designate K1 ~ K4 and construct a 16-bit result, occupying consecutive 2
groups of 16-bit data. ES/EX/SS only stores low 16-bit data.
8. 32-bit BIN multiplication,
b31.. b16
X
=
+1
b31 is a symbol bit b31 is a symbol bit
b63 is a symbol bit )
(b15 of D+3
Symbol bit = 0 refers to a positive value.
Symbol bit = 1 refers to a negative value.
b15.. b00 b31.. b16 b15.. b00
+1
b63. b48 b47. b32 b31. b16 b15. b00
+3 +2 +1
When D serves as a bit device, it can designate K1 ~ K8 and construct a 32-bit result, occupying consecutive 2
groups of 32-bit data.
Program Example:
The 16-bit D0 is multiplied by the 16-bit D10 and brings forth a 32-bit product. The higher 16 bits are stored in D21