Справочник Пользователя для Mitsubishi Electronics FX3G
467
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
Programming Manual - Basic & Applied Instruction Edition
16 External FX Device – FNC 80 to FNC 89
16.5 FNC 84 – CCD / Check Code
11
FN
C30
-FN
C3
C30
-FN
C3
9
R
ota
tion and
Shi
ft
ft
12
FN
C40-FN
C40-FN
C49
D
ata O
perati
perati
on
13
FNC
50-FNC
59
High-Speed
Proc
essing
14
FM
C60-FN
C60-FN
C69
H
andy
In
struction
15
FN
C70-FN
C70-FN
C79
E
xternal
F
X
I/O
De
vice
16
FNC
80-FNC
89
External
FX
Dev
ice
ice
17
FNC1
00-
FNC10
00-
FNC10
9
Dat
a
a
Transfer 2
18
FNC1
10-
FNC139
FNC139
Fl
oati
ng Poi
nt
19
FNC14
0-F
N
C
149
Da
ta
Operation 2
20
FNC1
50-
FNC159
FNC159
Pos
itioning
itioning
Control
2. 16-bit conversion mode (while M8161 is OFF)
(M8161 is also used for the RS, ASCI, HEX and CRC instructions.)
With regard to "n" data starting from
, the addition data and horizontal parity data of high-order 8 bits and low-
order 8 bits are stored to
and
+1 respectively.
M8161 is used also for the RS, ASCI, HEX and CRC instructions. When using the 16-bit mode, set M8161 to normally
OFF. M8161 is cleared when the PLC mode is changed from RUN to STOP.
OFF. M8161 is cleared when the PLC mode is changed from RUN to STOP.
Example of 16-bit conversion
In the following program, conversion is executed as follows:
In the following program, conversion is executed as follows:
Example of data contents
Low-order 8 bits of D100
K100
= 01100100
High-order 8 bits of D100
K111
= 0110111 (1)
←
Low-order 8 bits of D101
K100
= 01100100
High-order 8 bits of D101
K 98
= 01100010
Low-order 8 bits of D102
K123
= 0111101 (1)
←
High-order 8 bits of D102
K 66
= 01000010
Low-order 8 bits of D103
K100
= 01100100
High-order 8 bits of D103
K 95
= 0101111 (1)
←
Low-order 8 bits of D104
K210
= 11010010
High-order 8 bits of D104
K 88
= 01011000
Total
K1091
Horizontal parity
1000010 (1)
← When the number of "1" is odd, the horizontal parity is "1".
When the number of "1" is even, the horizontal parity is "0".
S
D
D
M8161
M8000
FNC 84
CCD
n
S
Command
input
D
16-bit mode
M8161
M8000
FNC 84
CCD
D100
D0
K10
X010
16-bit mode
S
1
1
0
0
0
0
1
0
0
0
1
0
0
0
0
0
D 0
"1091" in BCD
1
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
D 1
Horizontal parity