
442
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
16 External FX Device – FNC 80 to FNC 89
16.4 FNC 83 – HEX / ASCII to Hexadecimal Conversion
2. 16-bit conversion mode (while M8161 is OFF)
(M8161 is used also for the RS, ASCI, CCD, and CRC instructions.)
Each ASCII code stored in high-order 8 bits and low-order 8 bits of devices
and later is converted into
a hexadecimal code, and transferred to devices
and later in units of 4 digits. The number of characters
to be converted is specified by "n".
M8161 is used also for the RS, ASCI, CCD 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.
Operation
In the following program, conversion is executed as follows:
Conversion source data
Number of specified characters and conversion result
"
•
" indicates "0".
• When the input data has the BCD format, it is necessary to convert BCD data into binary data after
executing this instruction.
• If ASCII code is not stored in
in HEX instruction, an operation error occurs and conversion into
hexadecimal code is disabled. Especially, note that ASCII code should be stored in high-order 8 bits of
also when M8161 is OFF.
ASCII code
Hexadecimal code
Low-order 8 bits of D200
30H
0
High-order 8 bits of D200
41H
A
Low-order 8 bits of D201
42H
B
High-order 8 bits of D201
43H
C
Low-order 8 bits of D202
31H
1
High-order 8 bits of D202
32H
2
Low-order 8 bits of D203
33H
3
High-order 8 bits of D203
34H
4
Low-order 8 bits of D204
35H
5
D 102
D 101
D 100
n
1
Does not change
•••
0H
2
••
0AH
3
•
0ABH
4
0ABCH
5
•••
0H
ABC1H
6
••
0AH
BC12H
7
•
0ABH
C123H
8
0ABCH
1234H
9
•••
0H
ABC1H
2345H
S
D
M8161
M8000
FNC 83
HEX
n
S
Command
input
D
16-bit mode
M8161
M8000
FNC 83
HEX
D200
D100
K4
X010
16-bit mode
S
0
0
1
1
1
1
0
1
0
1
0
1
0
0
0
0
D 100
0
A
B
C
In the case of "n = K4"
0
0
0
0
1
1
0
0
1
0
0
0
0
0
1
0
D 200
41H
→
[A]
30H
→
[0]
0
1
0
0
0
0
1
0
1
1
0
0
0
0
1
0
D 201
43H
→
[C]
42H
→
[B]
D
S
S
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