Hitachi NJI-350B User Manual
Page 140
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
↕
z
z
z
z
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
X
Y
R,
M
TD, SS,
CU, CT
WX WY
WR,
WM TC DX DY
DR,
DM
C
onstant
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).
0
0
0
1
1
0
1
1
0
1
0
0
1
1
1
1
1
B
4
F
0
1
1
0
1
0
0
1
1
0
0
1
0
0
0
1
6
9
9
1
1B4FH=6991
(BCD)
Before execution s
After execution d
(Binary)
Combinations of d and s.
d
s
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
BC
D
(
d,
s)