456
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
16 External FX Device – FNC 80 to FNC 89
16.4 FNC 83 – HEX / ASCII to Hexadecimal Conversion
16.4 FNC 83 – HEX / ASCII to Hexadecimal Conversion
Outline
This instruction converts ASCII codes into hexadecimal codes.
On the other hand, DABIN (FNC260) instruction converts ASCII codes into binary data, and EVAL (FNC117)
instruction converts ASCII codes into binary floating point data.
→ For DABIN (FNC260) instruction, refer to Section 29.5.
→ For EVAL (FNC117) instruction, refer to Section 18.5.
1. Instruction format
2. Set data
*1. Make sure to use only ASCII codes "0" to "9" and "A" to "F".
3. Applicable devices
S: This function is supported only in FX3U/FX3UC PLCs.
Explanation of function and operation
1. 16-bit operation (HEX and HEXP)
Among the ASCII codes stored in and later, "n" characters are converted into hexadecimal codes, and then
stored to the devices and later.
The 16-bit mode and 8-bit mode are available for this instruction. For operation in each mode, refer to the proceeding
pages.
Operand type Description Data type
Head device number storing ASCII code to be converted
Character string
(only ASCII code)
*1
Head device number storing converted hexadecimal code 16-bit binary
n Number of ASCII codes (bytes) to be converted [setting range: 1 to 256] 16-bit binary
Oper-
and
Type
Bit Devices Word Devices Others
System User Digit Specification System User
Special
Unit
Index
Con-
stant
Real
Number
Charac-
ter String
Pointer
XYMTCSD
.b KnX KnY KnM KnS T C D R
U\G
V Z Modify K H E "
"P
33333333 S 333
3333333 S 33 3
n 33 33
P
FNC 83
HEX
−
−
Mnemonic Operation Condition
16-bit Instruction
7 steps
HEX
HEXP
Mnemonic Operation Condition
Continuous
Operation
Pulse (Single)
Operation
32-bit Instruction
S
1
S
D
S
1
S
S
2
D
S
D
FNC 83
HEX
nS
Command
input
D
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