Справочник Пользователя для Mitsubishi Electronics QCPU

7-319

BATAN(P)

.12 Special function

instructions

.12.34 BCD type T

N -1 o

perations (BATAN(

))

7.12.34

BCD type TAN

-1

operations (BATAN(P))

BATAN(P)

Function

(1) Performs TAN

-1

(inverse tangent) on value designated by

and stores operation results

(angles) at device designated by

(2) A sign for the operation data is set at

If the operation data is a positive value, this is set at "0", and if it is a negative value, it is set
at "1".

(3) The part before the decimal point and fraction part are stored at

+1 and

+2 respectively,

as BCD values.
(Values from 0 to 9999.9999 can be set.)

(4) Operation results stored at

are BCD values between 0 and 90 degrees, and 270 and 360

degrees (degree units).

(5) Calculation results are a value from which the decimal fraction part has been rounded.

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 operation data designated by

is not a BCD value.

(Error code: 4100)

• The device specified by

exceeds the range of the corresponding device.

(For the Universal model QCPU only.)

(Error code: 4101)

: Number of the device where data of which the TAN-1 (inverse tangent) value is obtained is stored

(BCD 4 digits)

: Head number of the devices where the operation result will be stored (BCD 4 digits)

Setting

Data

Internal Devices

R, ZR

Constants

Other

Bit

Word

Bit

Word

––

Process

High

performance

Redundant Universal

Basic

BATAN

Command

BATANP

BATAN

TAN

Integer part

Decimal fraction part

Sign

)

(