Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Divr

3. Instruction

Set

API

Mnemonic

Operands

Function

Controllers

175

D

DIVR

P

Floating point division

ES2/EX2 SS2 SA2 SX2

SE

Type

Bit Devices

Word devices

Program Steps

OP

X

Y

M

S

K H KnX KnY KnM KnS T C

D

E

F DDIVR: 13 steps

S1

*

S2

*

D

*

PULSE

16-bit

32-bit

ES2/EX2

SS2

SA2

SX2

ES2/EX2

SS2

SA2

SX2

ES2/EX2

SS2

SA2

SX2

SE

SE

SE

Operands:

S1: Floating point n dividend S2: Floating point divisor

D: Quotient

Explanations:

1.DIVR instruction divides S1 by S2 and stores the operation result in D

2.In DIVR instruction, floating point values can be directly entered into S1 and S2.

3.In DDIVR instruction, floating point values (e.g. F1.2) can be either entered directly into S1 and S2 or stored in data registers for operation.

4.When S1 and S2 is specified as data registers, the function of DDIVR instruction is the same as API 123 EDIV instruction.

5.If S2 = 0, operation error occurs and M1067 = ON, M1068 = ON. D1067 stores the error code 0E19 (HEX).

6.Flags: M1020 (Zero flag), M1021 (Borrow flag) and M1022 (Carry flag)

If absolute value of the result exceeds max floating point value, carry flag M1022 = ON.

If absolute value of the result is less than min. floating point value, borrow flag M1021 = ON. If the conversion result is 0, zero flag M1020 = 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 F2.200E+0 D10

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

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