Modbus
Cellular
Gateway
Index
skipping
is
used
to
reserve
slots
for
new
function
insertion,
when
required.
327
Scenario
Application
Timing
When
the
administrator
wants
the
serial
device
to
communicate
data
with
the
Internet
Host
Computer
via
the
"IOG
Gateway",
the
operation
mode
for
the
"Virtual
COM"
function
in
the
gateway
is
required
to
be
"UDP".
In
this
mode,
the
UDP
data
can
be
transferred
between
the
IOG
gateway
and
multiple
host
computers
from
either
peer,
making
this
mode
ideal
for
message
display
applications.
It
supports
up
to
4
legal
host
computers
to
connect
to
the
serial
device
via
the
gateway.
Scenario
Description
Internet
Host
Computer
is
the
trusted
one
in
the
"IOG
Gateway"
for
communicating
UDP
data
with
the
serial
device.
Parameter
Setup
Example
Following
tables
list
the
parameter
configuration
as
an
example
for
the
"UDP"
mode
in
"Virtual
COM"
function,
as
shown
in
above
diagram.
Use
default
value
for
those
parameters
that
are
not
mentioned
in
the
tables.
Configuration
Path
[Virtual
COM]
‐
[Configuration]
Operation
Mode
UDP
WAN
Interface
All
WANs
Listen
Port
4001
Configuration
Path
[Virtual
COM]
‐
[Legal
IP
Definition
(UDP)]
ID
1
Host
140.116.82.98
Definition
■
Enable
Scenario
Operation
Procedure
In
above
diagram,
the
"IOG
Gateway"
is
the
gateway
that
attaches
a
serial
device
and
the
gateway
