Delta DVP-10PM, Applications Manual

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5
Categories and Use of Basic Application Instructions
DVP-PM Application Manual 5-99
API Mnemonic Operands Function
120 D EADD P Binary Floating Point Addition
Controllers
20PM 10PM
Bit Devices Word Devices Program Steps
Type
OP
X Y M S F H KnX KnY KnM KnS T C D V Z
S
1
* *
S
2
* *
D *
DEADD, DEADDP: 9 steps
Operands:
S
1
: Augend
S
2
: Addend
D
: Addition result
Explanations:
1.
S
1
+
S
2
=
D
. The floating point value in
S
1
and
S
2
are added and the result is stored in
D
2. F refers to floating point input. Be sure to add a decimal point when using it.
3. Only 32-bit instructions DEADD and DEADDP are applicable..
4. If
S
1
or
S
2
is specified with floating point value F, the instruction will operate in binary floating point.
5.
S
1
and
S
2
can designate the same register. In this case, if the instruction is specified as “continuous execution
instruction” (generally DEADDP instruction) and the drive contact is ON, the register will be added once in every
scan.
6. Flags:
OX O100
Zero flag M1808 M1968
Borrow flag M1809 M1969
Carry flag M1810 M1970
a) If the absolute value of the result exceeds the max. floating point value, carry flag will be ON.
b) If the absolute value of the result is less than min. floating point value, borrow flag will be ON.
c) If the conversion result is 0, zero flag will be ON
Program Example 1:
When X0 = ON, add the binary floating point value (D1, D0) with binary floating point value (D3, D2) and store the
result in (D11, D10).
X0
DEADD D0 D2 D10
Program Example 2:
When X2 = ON, add the binary floating point value of (D11, D10) with F1234.0 (automatically converted to binary
floating point value) and store the result in (D21, D20).
X2
DEADD D10 F1234.0 D20
Points to note:
For floating point operations, see “5.3 Numeric Values for Data Processing”.