2.
Configuration
The
necessary
configuration
for
Modbus
TCP
communication,
Modbus
RTU
communication
and
polling
definition
is
handled
by
a
single
file
named
“config.csv”.
Just
follow
the
easy
‐
to
‐
use
format
defined
in
the
config.csv
file
and
import
the
new
config.csv
file
via
a
simple
mouse
‐
click
on
the
main
page
of
the
MDC
‐
700,
the
data
on
those
Modbus
RTU
slave
devices
can
be
accessed
over
an
Ethernet.
Only
the
Function
code
01/02/03/04
can
be
used
in
the
config.csv
file:
01:
Read
Coil
Status
(Read
DO)
02:
Read
Input
Status
(Read
DI)
03:
Read
Holding
Registers
(Read
AO)
04:
Read
Input
Registers
(Read
AI)
If
you
would
like
to
write
data
to
a
digital
or
analog
output
channel
on
a
Modbus
RTU
slave
device,
the
output
channel
needs
be
mapped
with
a
local
register
address
in
the
MDC
‐
700
by
editing
the
polling
definition
with
using
corresponding
read
function
code
(01
or
03).
Refer
to
Q4
in
the
4.
FAQ
section
for
more
detailed
information.
The
following
section
will
help
you
to
set
up
your
MDC
‐
700
module,
and
show
you
how
to
use
the
web
interface
to
obtain
configuration
and
other
information
related
to
the
MDC
module
and
associated
slave
devices.
Basic
operating
procedure
Step
1:
Assign
a
valid
IP
address
to
the
MDC
‐
700.
Step
2:
Edit
the
config.csv
file.
Note
that
before
editing
this
file,
you
should
confirm
the
parameter
value
for
any
associated
Slave
devices.
Step
3:
Upload
the
config.csv
file
to
the
MDC
module.
Step
4:
Verify
the
status
of
both
the
connection
and
the
configuration
by
browsing
the
web.
Copyright
©
2014
ICP
DAS
Co.,
Ltd.
All
Rights
Reserved.
∗
E
‐
mail:
‐
13
‐
