PoE
AP
Router
168
Virtual
COM
Setting
Virtual
COM
setting
screen
enables
user
to
connect
a
Virtual
COM
port
based
device
to
the
Internet.
It
allows
user
to
access
serial
data
remotely.
There
are
TCP
Client,
TCP
Server,
UDP,
and
RFC2217
modes
for
remote
accessing
the
connected
serial
device.
To
use
the
Virtual
COM
function,
you
have
to
specify
the
operation
mode
for
the
multi
‐
function
serial
port
first.
Go
to
Field
Communication
>
Bus
&
Protocol
>
Port
Configuration
tab,
select
the
Virtual
COM
as
expected
operation
mode,
and
finish
the
related
port
configuration
as
well.
After
that,
go
to
Field
Communication
>
Bus
&
Protocol
>
Virtual
COM
tab
for
detailed
configuration
of
Virtual
COM
setting.
Enable
TCP
Client
Mode
Configure
the
gateway
as
the
TCP
(Transmission
Control
Protocol)
Client.
In
TCP
Client
mode,
device
initiates
a
TCP
connection
with
a
TCP
server
when
there
is
data
to
transmit.
Device
disconnects
from
the
server
when
the
connection
is
Idle
for
a
specified
period.
You
may
also
enable
full
time
connection
with
the
TCP
server.
Enable
TCP
Client
Mode
Window
Item
Value
setting
Description
Operation
Mode
A
Must
filled
setting
Select
TCP
Client
.
Connection
Control
Always
on
is
set
by
default
Choose
Always
on
for
a
TCP
full
time
connection.
Otherwise,
choose
On
‐
Demand
to
initiate
TCP
connection
only
when
required
to
transmit
and
disconnect
at
idle
timeout.
Connection
Idle
Timeout
1.
0
is
set
by
default
2.
Range
0
to
60
min.
Enter
the
idle
timeout
in
minutes.
The
idle
timeout
is
used
to
disconnect
the
TCP
connection
when
idle
time
elapsed
.
Idle
timeout
is
only
available
when
On
‐
Demand
is
selected
in
the
Connection
Control
field.
Value
Range
:
0
~
60
minutes.
Alive
Check
Timeout
1.
0
is
set
by
default
2.
Range
0
to
60
min.
Enter
the
time
period
of
alive
check
timeout.
The
TCP
connection
will
be
terminated
if
it
doesn’t
receive
response
of
alive
‐
check
longer
than
this
timeout
setting
Value
Range
:
0
~
60
minutes.
Enable
The
box
is
unchecked
by
default.
Check
the
Enable
box
to
activate
the
corresponding
serial
port
in
specified
operation
mode.
Save
N/A
Click
the
Save
button
to
save
the
configuration
Содержание IWP87DAM-07151
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