Справочник Пользователя для Mitsubishi Electronics QCPU

6-96

ENEG(P)

Floating-point sign invertion (Single precision) (ENEG(P))

ENEG(P)

*1:Available only in multiple Universal model QCPU

Function

(1) Reverses the sign of the 32-bit floating decimal point type real number data designated by  

, and stores at the device designated by 

.

(2) Used when reversing positive and negative signs.

Operation Error

(1) In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and 

an error code is stored into SD0.
 • The contents of the designated device or the result of the addition are not "0", or not within 

the following range(For the Universal model QCPU only):
0, 2

-126

 

 | Contents of designated device | < 2

128

(Error code: 4140)

 • The value of the specified device is  0, unnormalized number, nonnumeric, and ±

.

(For the Universal model QCPU only)

(Error code: 4140)

Program Example

(1) The following program inverts the sign of the 32-bit floating decimal point type real number 

data at D100 and D101 when X20 goes ON, and stores result at D100 and D101.
[Ladder Mode]

[List Mode]

[Operation]

Basic model QCPU: The upper five digits of the serial No. are "04122" or larger.

:

 

Head number of the devices where the 32-bit floating decimal point data whose sign is to be reversed is 

stored (real number)

Setting 

Data

Internal Devices 

R, ZR

J

\

U

\G

Zn

Constants

Other

Bit

Word

Bit

Word

––

––

*1

––

Command

Command

ENEG

ENEGP

D

D

ENEG

ENEGP

D

D

D

D

Step

Instruction

Device

D101

1.2345

D100

D101

1.2345

D100