Справочник Пользователя для Mitsubishi Electronics FX

FX Series Programmable Controlers

Applied Instructions 5

5-123

5.11.8

EDIV (FNC 123)

Operation:

The floating point value of S

is divided by the

floating point value of S

. The result of the division

is s to r ed in D a s a f lo at in g point v alue. No
remainder is calculated.

Points to note:

Points a, b, c, d of the EADD instruction apply, except that a division is performed.
See page 5-122.

•

If S

is 0 (zero) then a divide by zero error occurs and the operation fails.

5.11.9

ESQR (FNC 127)

Operation:

A square root is performed on the floating point
value of Sand the result is stored in D.

Points to note:

Points a, b, c, d of the EADD instruction apply, except that a square root is performed.
See page 5-122.

•

If S is negative then an error occurs and error flag M8067 is set ON.

Mnemonic

Function

Operands

Program steps

EDIV
FNC 123
(Floating
Point
Division)

Divides one
floating point
number by
another.

K, H - integer value automati-
cally
converted to floating point

D - must be in floating point
format (32 bits).

D - a floating
point value
(32 bits).

DEDIV,
DEDIVP:
13 steps

Mnemonic

Function

Operands

Program steps

ESQR
FNC 127
(Floating
Point
Square
Root)

Calculates the
square root of
a floating point
value.

K, H - integer value automati-
cally
converted to floating point

D - must be in floating point
number format (32 bits).

D - a floating
point value
(32 bits).

DESQR,
DESQRP:
9 steps

0(S)

FX FX

(2C)

2N(C)

(2C)

2N(C)

0(s)

PULSE-P

(2C)

2N(C)

0(s)

16 BIT OPERATION

0(s)

(2C)

2N(C)

32 BIT OPERATION

DEDIV

X10

D128

K500 D106

0(S)

FX FX

(2C)

2N(C)

(2C)

2N(C)

0(s)

PULSE-P

(2C)

2N(C)

0(s)

16 BIT OPERATION

0(s)

(2C)

2N(C)

32 BIT OPERATION

FLAGS Zero M8020

DESQR

M24

D302 D510