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4
4 Instructions 4.3.1 Contact Comparison
FLD>
Enabled when oating-point number > comparative
state contact S1 > S2
These instructions are
similar to contact comparison
instructions. The difference
is that the former compare
oating-point numbers and
support only 32-bit operation
because 16-bit oating-point
numbers do not exist. This
set of instructions support
only continuous execution but
not pulse execution. Every
instruction uses oating-point
numbers as operands and
occupies nine steps.
FLD>=
Enabled when oating-point number >= comparative
state contact S1 ≥ S2
FLD<
Enabled when oating-point number < comparative
state contact S1 < S2
FLD<=
Enabled when oating-point number <= comparative
state contact S1 ≤ S2
FLD=
Enabled when oating-point number = comparative
state contact S1 = S2
FLD<>
Enabled when oating-point number <> comparative
state contact S1 ≠ S2
FAND>
Enabled when oating-point number > comparative
AND state contact S1 > S2
FAND>=
Enabled when oating-point number >= comparative
AND state contact S1 ≥ S2
FAND<
Enabled when oating-point number < comparative
AND state contact S1 < S2
FAND<=
Enabled when oating-point number <= comparative
AND state contact S1 ≤ S2
FAND=
Enabled when oating-point number = comparative
AND state contact S1 = S2
FAND<>
Enabled when oating-point number <> comparative
AND state contact S1 ≠ S2
FOR>
Enabled when oating-point number > comparative OR
state contact S1 > S2
FOR>=
Enabled when oating-point number >= comparative
OR state contact S1 ≥ S2
FOR<
Enabled when oating-point number < comparative OR
state contact S1 < S2
FOR<=
Enabled when oating-point number <= comparative
OR state contact S1 ≤ S2
FOR=
Enabled when oating-point number = comparative OR
state contact S1 = S2
FOR<>
Enabled when oating-point number <> comparative
OR state contact S1 ≠ S2