Delta DVP-10PM, Applications Manual

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5
Categories and Use of Basic Application Instructions
DVP-PM Application Manual 5-125
API Mnemonic Operands Function
175 D DIVR P Floating point division
Controllers
20PM 10PM
Bit Devices Word devices Program Steps
Type
OP
X Y M S F H KnX KnY KnM KnS T C D E F
S
1
*
S
2
*
D *
DDIVR: 13 steps
Operands:
S
1
:
Floating point n dividend
S
2
:
Floating point divisor
D:
Quotient
Explanations:
1. DDIVR instruction divides
S
1
by
S
2
and stores the operation result in
D
2. In DDIVR instruction, floating point values can be directly entered into
S
1
and
S
2
.
3. In DDIVR instruction, floating point values (e.g. F1.2) can be either entered directly into
S
1
and
S
2
or stored in
data registers for operation.
4. When
S
1
and
S
2
is specified as data registers, the function of DDIVR instruction is the same as API 123 EDIV
instruction.
5. If
S
2
= 0, operation error occurs and M1067 = ON, M1068 = ON. D1067 stores the error code 0E19 (HEX).
6. Flags:
OX O100
Zero flag M1808 M1968
Borrow flag M1809 M1969
Carry flag M1810 M1970
If absolute value of the result exceeds max floating point value, carry flag will be ON.
If absolute value of the result is less than min. floating point value, borrow flag will be ON.
If the conversion result is 0, zero flag will be ON.
Program example 1:
When X0 = ON, divide floating point number F1.200E+0 (Input F1.2, and scientific notation F1.200E+0 will be
displayed on ladder diagram. Users can set monitoring data format as float on the function View) with F2.200E+0
and store the obtained result F0.545E+0 in D10 and D11.
X0
DDIVR F1.200E+0
D10
F2.200E+0
Program example 2:
When X1= ON, divide the floating point number value (D1, D0) by (D11, D10) and store the obtained quotient into
registers (D21, D20).
X1
DDIVR
D0 D10 D20