Hitachi NJI-350B User Manual
Page 107
Chapter 5 Instruction Specifications
5-57
Item number
Arithmetic instructions-12
Name
Logical OR
Ladder format
Condition code
Processing time (
µs)
Remark
R7F4
R7F3
R7F2
R7F1
R7F0
Average Maximum
d = s1 OR s2
DER
ERR
SD
V
C
62
Upper case: B
z
z
z
z
z
Middle case: W
Instruction format
Number of steps
33
Lower case: DW
Condition
Steps
d = s1 OR s2
Bit, word
4
86
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 Comparand
{
{
{
{
{
{
{
{
{
{
{
s2 Relational number
{
{
{
{
{
{
{
{
{
{
{
Function
• Obtains OR of s1 and s2, and substitutes the result into d.
s1
s2
d
0
0
0
0
1
1
1
0
1
1
1
1
Notes
• The combinations of d, s1 and s2 are as follows:
d
s1
s2
Bit
Bit
Bit
Word
Word
Word
Double word
Double word
Double word
Program example
WR0102 = WR0100 OR WR0101
X00110
DIF110
LD X00110
AND DIF110
[
WR0102=WR0100 OR WR0101
]
Program description
• At the leading edge of X00110, the OR of WR0100 and WR0101 is set in WR0102.
WR0100 = H1234
WR0101 = H5678
WR0102 = H567C
WR0100 = 0001001000110100
WR0101 = 0101011001111000
WR0102 = 0101011001111100
When
d
=
s1
O
R
s2