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Chapter 5 Instruction Specifications
5-62
Item number
Arithmetic instructions-17
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
zzzzz 60
Instruction format Number of steps
Condition Steps
d = s1 <> s2 s is a word 4 46
s is a double Word 6
Bit Word Double word
Usable I/O
XY
R,
M
TD, SS,
CU, CT WX WY
WR,
WM TC DX DY
DR,
DM
Constant
Other
d Substitution destination {{
s1 Comparand {{{{{{{{
s2 Relational number
{{{{{{{{
Function
• Substitutes 1 when s1 is not 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:
ds1s2
Bit Word Word
Bit Double word Double word
Program example
Y00000= WR0000 < > WR0001
[
Y00000= WR0000 < > WR0001
]
Program description
• When WR0000 ≠ WR0001, “1” is set in Y00000. Otherwise, Y00000 is reset to “0.”
d = s1 <> s2