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Chapter 5 Instruction Specifications
5-63
Item number
Arithmetic instructions-18
Name
Signed <> Relational expression
Ladder format Condition code
Processing time (µs)
Remark
R7F4 R7F3 R7F2 R7F1 R7F0
Average Maximum
d = s1 S<> s2 DER ERR SD V C
zzzzz
Command format Number of steps
48
Condition Steps
d = s1 S<> s2 s is a double word 6
Bit Word Double word
Usable I/O
XY
R,
L,
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
z
Substitutes 1 when s1 is not equal to s2 and otherwise 0 into d, assuming s1 and s2 as signed binary data.
z
s1 and s2 are both signed binary data. When the most significant bit is 0, the value is positive; when the most significant
bit is 1, the value is negative.
s1, s2 – 2147483648 to +2147483647 (decimal)
H80000000 to H7FFFFFFF (hexadecimal)
b31
b16 b15 b0
Sign bit: 0 - Positive; 1 - Negative
Program example
Y00100 = DR0000 S<> DR0002
[
Y00100 = DR0000 S<> DR0002
]
Program description
z
When the values of DR0000 and DR0002 are not equal, Y00100 is turned on. Otherwise, Y00100 is turned off.
d = s1 S<> s2