Справочник Пользователя для Mitsubishi Electronics FX

FX Series Programmable Controlers

Applied Instructions 5

5-20

5.2.6

BMOV (FNC 15)

Operation:

A q u a n t i t y o f c ons ec u t i v e ly o c c u r r i ng d at a
elements can be copied to a new destination. The
source data is identified as a device head address

(S) and a quantity of consecutive data elements (n). This is moved to the destination device
(D) for the same number of elements (n).

Points to note:

a) If the quantity of source devices (n) exceeds the actual number of available source devices,

then only those devices which fall in the available range will be used.

b) If the number of source devices exceeds the available space at the destination location,

then only the available destination devices will be written to.

c) The BMOV instruction has a built in automatic feature to prevent overwriting errors from

occurring when the source (S - n) and destination (D -n) data ranges coincide. This is
clearly identified in the following diagram:
(Note: The numbered arrows indicate the order in which the BMOV is processed)

d) Using file registers as the destination devices [D]may only be performed on FX Main

Processing Units (MPUs) with a CPU version 3.07 or greater or on any FX

or FX

2N(C)

MPU.

Mnemonic

Function

Operands

Program steps

BMOV
FNC 15
(Block move)

Copies a specified
block of multiple
data elements to a
new destination

KnX, KnY,
KnM, KnS,
T,C,D, V, Z
(RAM) File
registers,

KnY, KnM,
KnS,
T, C, D, V, Z
(RAM) File
registers, see
note d)

K, H
D (FX2C,
FX2N only)

Note:
n

≤

512

BMOV,
BMOVP:
7 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

BMOV

D 5

D 7

K 3

[ S ]

[ D ]

D 5
D 6
D 7

D 20
D 21
D 22

D 18
D 19
D 20

BMOV

D 5

D 7

K 3

BMOV D 20 D 18

K 4

D 23

D 21

D 7
D 8
D 9

0(S)

FX FX

(2C)

2N(C)