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Chapter 5 Instruction Specifications
5-90
Item number Application instructions-18 Name Binary → BCD conversion
Ladder format Condition code
Processing time (µs)
Remark
R7F4 R7F3 R7F2 R7F1 R7F0
Average Maximum
BCD (d, s) DER ERR SD V C Upper case: W
↕
zzzz 79
Lower case: DW
Instruction format Number of steps
Condition Steps
BCD (d, s) Word 3 89
Double word 4
Bit Word Double word
Usable I/O
XY
R,
M
TD, SS,
CU, CT WX WY
WR,
WM TC DX DY
DR,
DM
Constant
Other
d I/O after conversion (BCD) {{ {{
s
I/O before conversion
(BIN)
{{{{{{{{
Function
• The result of the content conversion of s from binary to BCD is output to d.
• If the conversion result of s exceeds the number of BCD data digits in d, DER (R7F4) is set to '1' and the instruction will not
be executed.
If s is a word: set s so that H0000 ≤ s ≤ H270F (0 to 9999).
If s is a double word: set s so that H00000000 ≤ s ≤ H5F5E0FF (0 to 99999999).
0001101101001111
1B4F
0110100110010001
6991
1B4FH=6991
(BCD)
Before execution s
After execution d
(Binary)
Combinations of d and s.
ds
Word Word
Double word Double word
Notes
• If a data error occurred, the previous contents of d are retained.
Program example
X00000
BCD (WM0010, WR000 )
LD X00000
[
BCD
(
WM0010, WR000
)
]
Program description
• When X00000 turns on, the content of WR000 is converted from binary to BCD and output to WM0010.
WR000 H1B4F
After conversion
WM0010 H6691
BCD (d, s)