Hitachi NJI-350B User Manual
Page 110
Chapter 5 Instruction Specifications
5-60
Item number
Arithmetic instructions-15
Name
= Relational expression
Ladder format
Condition code
Processing time (
µs)
Remark
R7F4
R7F3
R7F2
R7F1
R7F0
Average Maximum
d = s1 == s2
DER
ERR
SD
V
C
z
z
z
z
z
60
Instruction format
Number of steps
Condition
Steps
d = s1 == s2
s is a word
4
48
s is a 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
• Substitutes “1” when s1 is equal to s2 and otherwise “0” into d, assuming s1 and s2 as binary data.
Notes
• The combinations of d, s1 and s2 are as follows:
d
s1
s2
Bit
Word
Word
Bit
Double word
Double word
Program example
M0000 = WX0000 = = WX0001
[
M0000 = WX0000 = = WX0001
]
Program description
• When WX0000 = WX0001, M0000 is set to “1.” Otherwise, M0000 is reset to “0.”
d =
s1
==
s
2