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Quickstart Guide
ABB PLC and drives integration using Modbus RTU
Modbus
RTU
‐
45
‐
PLC
and
drives
integration
Go
online
again
by
choosing
“Login”
from
the
“Online”
menu
and
then
“Run”
from
the
same
menu
(if
the
PLC
is
not
already
in
run
mode).
The
status
of
the
function
block
inputs
and
outputs
are
now
displayed
in
the
visualization
window.
Block
inputs
which
have
not
been
connected
to
the
function
blocks
in
the
program
“PRG”
can
be
changed
from
the
visualization
window.
Note!
In
this
example
all
block
inputs
have
already
been
connected
to
the
function
blocks,
so
they
cannot
be
changed
from
the
visualization
view.
Some
examples
of
what
can
be
seen
in
the
visualization:
READY:
if
the
drive
is
ready
to
start.
OPERATING:
if
the
drive
is
operating
(magnetizing
the
motor).
TRIPPED:
if
the
drive
has
an
active
fault.
ACT_SPEED:
actual
speed
value.
ACT_SW:
actual
16
‐
bit
Status
Word
from
the
drive.
USED_CW:
actual
16
‐
bit
Control
Word
sent
from
the
PLC
to
the
drive.
MESSAGE
field:
information
about
the
actual
state,
e.g.
“Operation”
or
“Wait
for
rising
edge
of
START”.
Содержание ACS310
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