Delta DVP-20PM

5 Applied Instructions and Basic Usage
DVP-20PM Application Manual
5-100
API
Applicable model
20PM
120
D
D
EADD
P
P
Binary floating-point addition

Bit device Word device
X Y M S F H KnX KnY KnM KnS T C D V Z
S
1
＊ ＊
S
2
＊ ＊
D
＊
 Note: Please refer to specifications for more information about device
ranges.
F represents a floating-point value. There is a decimal point in a
floating-point value.
Only the 32-bit instructions DEADD and DEADDP are valid.
16-bit instruction
－ － － －
32-bit instruction (9 steps)
DEADD
Continuity
instruction
DEADDP
Pulse
instruction
 Flags
Ox O100
M1808 M1968 Zero flag
M1809 M1969 Borrow flag
M1810 M1970 Carry flag
 Please refer to the additional remark below.
Explanation
 The binary floating-point value in S
2
is added to the binary floating-point
value in S
1
, and the sum is stored in D.
 S
1
: Augend; S
2
: Addend; D: Sum
 If S
1
is a floating-point value, the instruction will be used to add the binary
floating-point value in S
2
to S
1
. If S
2
is a floating-point value, the instruction
will be used to add S
2
to the binary floating-point value in S
1
.
 S
1
and S
2
can be the same register. If the instruction DEADD is used under
the circumstances, the value in the register is added to itself whenever the
conditional contact is ON in a scan cycle. Generally, the pulse instruction
DEADDP is used.
 If the absolute value of an oepration result is greater than the maximum
floating-point value available, a carry flag will be ON.
 If the absolute value of an oepration reuslt is less than the minimum
floating-point value available, a borrow flag will be ON.
 If an operation result is 0, a zero flag will be ON.
Example 1

When X0 is ON, the binary floating-point value in (D3, D2) is added to the
binary floating-point value in (D1, D0), and the sum is stored in (D11, D10).
X0
DEADD D0 D2 D10
Example 2

When X0 is ON, F1234.0 is added to the binary floating-point value in (D11,
D10), and the sum is stored in (D21, D20).
X2
DEADD D10 F1234.0 D20
Additional
remark

Please refer to section 5.3 for more information about performing operations
on floating-point values.