Robustel
GoRugged
R3000
‐
3P
‐
GPS
User
Guide
RT_UG_R3000_v.2.0.3
10.12.2014
49
/
129
Modbus
section
only
displayed
when
you
select
“Modbus
RTU
master”
or
“Modbus
ASCII
master”
in
“Attached
serial
device
type”.
Slave
Address
@
Modbus
Slave
This
connection
is
usually
used
to
connect
to
the
Modbus
slave
devices
which
as
TCP
server.
Enter
IP
address
of
the
TCP
server.
Null
Slave
Port
@
Modbus
Slave
Enter
the
port
number
of
TCP
server.
Null
ID
@
Modbus
Slave
Enter
the
ID
number
of
TCP
server.
Null
Interval
Timeout
@
Transparent
Over
Rlink
Serial
port
will
queue
the
data
in
buffer
and
then
send
it
to
the
Cellular
WAN/Ethernet
WAN
when
it
reaches
the
Interval
Timeout
in
this
field.
10
Attached
serial
device
type
@
Modbus
Over
Rlink
Select
From
“Modbus
RTU
slave”,
“Modbus
ASC
Ⅱ
slave”.
Modbus
RTU
slave:
router
connects
to
slave
device
which
works
under
Modbus
RTU
protocol.
Modbus
ASC
Ⅱ
slave:
router
connects
to
slave
device
which
works
under
Modbus
ASC
Ⅱ
protocol.
Modbus
RTU
slave
3.14
Configuration
‐
>
DI/DO
This
section
allows
users
to
set
the
DI/DO
parameters.
DI
@
DI/DO
Item
Description
Default
