Mitsubishi Electronics Mitsubishi Digital Electronics Video Gaming Accessories FX3G ユーザーズマニュアル
449
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
15 External FX I/O Device – FNC 70 to FNC 79
15.9 FNC 78 – FROM / Read From A Special Function Block
11
FN
C
C
30
-FN
C
C
39
R
otati
on and
on and
Shi
ft
ft
12
FNC4
0-F
0-F
NC4
9
D
ata O
per
ati
per
ati
on
13
FN
C
C
50-FN
C
59
H
igh S
pe
ed
P
rocessing
14
FM
C
C
60-FN
C
69
H
andy
In
st
ru
ct
ion
15
FNC7
0-F
0-F
NC7
9
Ex
ter
nal FX
I/O
D
evice
16
FN
C
C
80-FN
C
89
Ext
ernal
FX
ernal
FX
De
vic
vic
e
17
FN
C
100-
FN
FN
C
10
9
Da
ta
Transf
er 2
er 2
18
FN
C
110-
FN
FN
C
139
Floati
ng Poi
nt
19
FN
C
14
0-F
N
C
149
Da
ta
O
per
at
at
ion 2
20
FN
C
150-
FN
FN
C
159
Posit
ioning
C
ont
ro
ro
l
15.9.1 Common items between FROM instruction and TO instruction (details)
Contents specified by operands
1. Unit number "m1" of a special extension unit/block
Use the unit number to specify which equipment FROM/TO instruction works for.
Setting range: K0 to K7
Setting range: K0 to K7
A unit number is automatically assigned to each special extension unit/block connected to a 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.
When the main unit is the FX
When the main unit is the FX
3UC
-32MT-LT(-2), the unit number is assigned in the way "No. 1
→ No. 2 → No. 3 ..."
starting from the equipment nearest to the main unit because the CC-Link/LT master is built into the FX
3UC
-32MT-LT
(-2).
2. Buffer memory (BFM) number "m2"
Up to 32767 16-bit RAM memories are built into a special extension unit/block, and they are called buffer memories.
Buffer memory numbers range from "0" to "32766" and their contents vary depending on the function of the extension
equipment.
Setting range: K0 to K32766
• When BFMs are handled in a 32-bit instruction, a specified BFM stores low-order 16 bits, and a consecutive BFM
Buffer memory numbers range from "0" to "32766" and their contents vary depending on the function of the extension
equipment.
Setting range: K0 to K32766
• When BFMs are handled in a 32-bit instruction, a specified BFM stores low-order 16 bits, and a consecutive BFM
stores high-order 16-bits.
3. Number of transfer points "n"
Setting range: K1 to K32767
Specify the number of transferred word devices in "n".
"n =2" in a 16-bit instruction indicates the same meaning with "n = 1" in a 32-bit instruction.
"n =2" in a 16-bit instruction indicates the same meaning with "n = 1" in a 32-bit instruction.
FX
3UC
-
32MT-
LT(-2)
main unit
LT(-2)
main unit
Unit
No. 0
Built-in
CC-Link/LT
I/O
extension
block
Special
extension
block
Special
extension
block
Special
extension
block
I/O
extension
block
Unit
No.1
Unit
No.2
Unit
No.3
BFM #10
BFM #9
Low-order
16 bits
High-order
16 bits
← Specified BFM number
D100
D101
D102
D103
D104
D101
D102
D103
D104
BFM #5
#6
#7
#8
#9
#7
#8
#9
Specified devices
Specified BFMs
D100
D101
D102
D103
D101
D102
D103
BFM #5
#6
#7
#8
#7
#8
Specified devices
Specified BFMs
In the case of "n = 5" in a 16-bit
instruction
In the case of "n = 2" in a 32-bit
instruction