Quickstart Guide
ABB PLC and drives integration using Modbus RTU
Modbus
RTU
‐
46
‐
PLC
and
drives
integration
Go
offline
by
choosing
“Logout”
from
the
“Online”
menu.
Add
more
drives
(optional)
In
the
CODESYS
“POUs”
tab,
right
‐
click
the
program
for
your
earlier
drive
and
choose
“Copy
Object”,
give
the
new
program
a
suitable
name
and
double
‐
click
“PLC_PRG”.
Add
the
new
program
to
the
main
program
by
copying
Network
0001
to
Network
0002
and
rename
the
block
in
Network
0002
to
according
to
your
new
program.
Double
‐
click
and
open
the
new
program.
Change
“SLAVE”
number
of
the
“ACS_COM_MOD_RTU”
block
according
to
the
Modbus
RTU
node
address
of
actual
drive.
Continue
to
add
as
many
drives
as
you
need.
If
you
want
to
create
visualization
pages/objects
for
the
additional
drives,
make
sure
that
you
connect
the
Placeholders
to
the
function
block
instances
for
the
correct
program
(PRG),
“Drive2”
in
this
example.