Справочник Пользователя для Mitsubishi Electronics QCPU

7-153

FIFR(P)

.7 Data T

able

Oper

ation Instruction

.7.2 Reading oldest data fr

om tables (

R(P))

7.7.2

Reading oldest data from tables (FIFR(P))

FIFR(P)

Function

(1) Stores the oldest data (

+1) input to the table designated by

at the device designated by

After the execution of the FIFR instruction, the data in the table is all compressed up by one
block.

(2) Users should attempt to avoid executing the FIFR instruction if the value stored at

is 0.

[See Program Example (1)]

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 FIFR instruction was executed when the value at

was 0.

(Error code: 4100)

• The data table range exceeded the corresponding device range at execution of the FIFR

instruction.

(Error code: 4101)

: Head number of the devices where the data read from the table will be stored (BIN 16 bits)

: Head number of the table (BIN 16 bits)

Setting

Data

Internal Devices

R, ZR

Constants

Other

Bit

Word

Bit

Word

––

Basic

Process

High

performance

Redundant Universal

Command

FIFRP

FIFR

FIFRP

Data table

Number of stored
data blocks

5432

1234

4321

Stores 0.

Data table

1234

4321

5432