Hitachi NJI-350B User Manual
Page 105
Chapter 5 Instruction Specifications
5-55
Item number
Arithmetic instructions-10
Name
BCD division
Ladder format
Condition code
Processing time (
µs)
Remark
R7F4
R7F3
R7F2
R7F1
R7F0
Average Maximum
d = s1 B/ s2
DER
ERR
SD
V
C
Upper case: W
↕
z
z
z
z
152
Lower case: DW
Instruction format
Number of steps
Condition
Steps
d = s1 B/ s2
Words
4
253
Double word
6
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
Substitution destination
{
{
{
{
{
s1 Dividend
{
{
{
{
{
{
{
{
s2 Divisor
{
{
{
{
{
{
{
{
Function
• Divides s1 by s2 as the BCD data, and substitutes the quotient into d in the BCD data. The remainder is set in the special
internal output WRF016 (DRF016 in the case of double word).
• The DER flag is set to “1” if s1 or s2 is an invalid BCD data or when s2 is set to “0”. In this case the operation is not
performed. If both s1 and s2 are valid BCD data and s2 is not set to “0,” the operation is performed.
WR0050
WR0049
WR0051
WRF016
. . .
Example: WR0051 = WR0049 B/ WR0050
• When s1, s2 are words:
0000 to 9999 (BCD)
• When s1, s2 are double words:
00000000 to 99999999 (BCD)
Notes
• The combinations of d, s1 and s2 are as follows:
d
s1
s2
Word
Word
Word
Double word
Double word
Double word
Program example
X00000
WR0051 = WR0049 B/ WR0050
LD X00000
[
WR0051 = WR0049 B/ WR0050
]
Program description
• When input X00000 is on, the value of WR0049 is divided by the value of WR0050, then substituted into WR0051 as the
BCD data.
The reminder is substituted into WRF016 as the BCD data.
d
=
s1
B/
. s2