Справочник Пользователя для Mitsubishi Electronics FXCPU
31 Applied Instructions (Data Transfer 3)
31.1 RBFM / Divided BFM Read
731
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
31
Appl
ied
ied
In
stru
cti
cti
ons
(Da
ta
ta
T
rans
fer
3)
fer
3)
32
Ap
plied
Instru
ctio
ns
Instru
ctio
ns
(High S
peed
Process
ing 2)
33
App
lied Instr
lied Instr
ucti
ons
(Exte
nsion File
Regis
ter C
ontrol
ontrol
)
34
Ap
pl
ied In
struct
struct
ions
(FX
3U
-C
F-
AD
P)
P)
35
Int
errupt
Fun
cti
Fun
cti
on
and Puls
e Cat
ch
Functi
on
A
Re
lation
sh
ip
s
be
tw
ee
n de
vic
vic
es
an
d ad
dre
ss
dre
ss
es
B
Ap
plie
d
In
structio
n List
31.1.1 Common items between RBFM instruction and WBFM instruction
Specification of unit number of special function block and unit and buffer memory
→ For the connection method of special extension units and blocks, number of connectable units and
blocks, and handling of I/O numbers, refer to the manual of the PLC used and special function block
and unit.
1. Unit number "m1" of a special extension unit and block
Use the unit number to specify to which equipment the RBFM and/or WBFM instruction works.
Setting range: K0 to K7
Setting range: K0 to K7
A unit number is automatically assigned to each special extension unit and block connected to the PLC.
The unit number is assigned in the way "No. 0
The unit number is assigned in the way "No. 0
→ No. 1 → No. 2 ..." starting from the equipment nearest to the
main unit.
Since the FX
Since the FX
3UC
-32MT-LT(-2) PLC has a built-in CC-Link/LT master, the unit number is given "No. 1
→ No. 2
→ No. 3 ..." from the equipment nearest to the main unit.
2. Buffer memory (BFM) number "m2"
Up to 32767 16-bit RAM memories are built in a special extension unit and block, and they are called buffer
memories (BFM).
The buffer memory number is from "0" to "32766", and the contents are determined according to each special
function unit and block.
Setting range: K0 to K32766
memories (BFM).
The buffer memory number is from "0" to "32766", and the contents are determined according to each special
function unit and block.
Setting range: K0 to K32766
→ For the contents of buffer memories, refer to the manual of the special function block and unit
used.
Unit
No.0
Built-in CC-Link/LT
Unit
No.1
Unit
No.2
Unit
No.3
FX
3UC
-32MT-LT(-2)
Main unit
I/O
extension
block
Special
extension
block
Special
extension
block
Special
extension
block
I/O
extension
block