Filter
Top Products
FX Series Programmable Controlers Applied Instructions 5
5-2
• For instructions that operate continuousl
y
, i.e. on ever
y
scan of the pro
g
ram the instruction
will operate and provide a new, different result, the followin
g
identification s
y
mbol will be
used ‘
’ to represent a hi
g
h speed chan
g
in
g
state. T
y
pical instructions covered b
y
this
situation have a stron
g
incremental, indexable element to their operation.
• In most cases the operands of applied instructions can be indexed b
y
a users pro
g
ram. For
those operands which
cannot
be indexed, the s
y
mbol ‘
’ has been used to si
g
nif
y
an
operand as bein
g
‘fixed’ after it has been written.
• Certain instructions utilize additional data re
g
isters and/or status fla
g
s for example a math
function such as ADD (FNC 20) can identif
y
a zero result, borrow and carr
y
conditions b
y
usin
g
preset auxiliar
y
rela
y
s, M8020 to M8021 respectivel
y
.