Omron SYSMAC CP Series Instruction & Reference Manual page 224

2 Instructions
Function
BCD
BCD(024) converts the binary data in S to BCD data
and writes the result to R.
The following diagram shows an example BCD-to-binary conversion.
15 12 11 8 7 4 3
1 0 E C
S
×16 ×16 ×16 ×16
3 2 1
BCDL
BCDL(059) converts the 8-digit hexadecimal (32-bit
binary) data in S and S+1 to 8-digit BCD data and
writes the result to R and R+1.
The following diagram shows an example of 8-digit BCD-to-binary conversion.
S+1
0 0 2 D 3 2
×16 ×16 ×16 ×16 ×16 ×16
7 6 5 4 3
Sample program
When CIO 0.00 is ON in the following example, the hexadecimal value in CIO 11 and CIO 10 is con-
verted to a BCD value and stored in D100 and D101.
0.00
MBS
0
×
7
16
MBS
0
×
7
10
2-188
0 15 12 11 8 7 4 3 0
4 3 3 2
R
×10 ×10 ×10 ×10
0 3 2 1 0
R+1
S
0 A 0 2 9 6 1
×16 ×16 ×10 ×10 ×10 ×10 ×10
2 1 0 7 6 5 4 3
BCDL
10
D100
S+1 : CIO 11
0 2 D
× × ×
6 5
4
16 16 16
× × ×
5 4
2 16 13 16 3 16
R+1 : D101
2 9 6
× × ×
6 5 4
10 10 10
(BIN)
S
S+1
(BCD)
R
9 3 0
×10 ×10 ×10
2 1 0
S: CIO 10
3 2 0
×
× ×
16 3
2 1
16 16
×
3
2 16 2 10 2961930
R : D100
1 9 3
×
× ×
3
10 2 1
10 10
CP1E CPU Unit Instructions Reference Manual(W483)
(BCD)
R
S R+1 R
(BCD) (BIN) (BIN)
A LSB
×
0
16
LSB
0
×
0
10