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9
IG_GTM
1
1
6
‐
B_
R1
A
G
OLD
S
ERIES
GTM116-B T
RANSMITTER
a measurable difference!
EBTRON
4.2
GTM116
‐
ETHERNET
NETWORK
WIRING
CONNECTIONS
4.2.1
GTM116
‐
Connecting
to
an
Ethernet
Network
Connect
an
Ethernet
network
cable
to
the
RJ45
network
connector
provided
on
the
GTM116
Ethernet/Analog
combination
board
as
shown
in
Figure
6.
4.3
GTM116
‐
Transmitter
Setup
for
Ethernet
Network
Operation
The
user
can
manually
select
network
protocol
(BACnet/IP
or
BACnet
Ethernet
‐
MODBUS
TCP
is
always
enabled),
IP
address
and
device
instance
number,
or
can
set
the
GTM116
to
automatically
configure
itself
when
used
on
a
network/segment
with
a
DHCP
server.
By
default,
the
DHCP
setting
is
OFF
(*DHCP=OFF)
for
manual
device
configuration,
with
BACnet
IP
protocol
(BAC
MODE=IP),
a
static
IP
address
of
10.0.0.100,
a
subnet
mask
of
255.255.255.0,
and
with
gateway
set
for
10.0.0.10.
These
values
can
be
changed
within
the
NETWORK
sub
menu
as
described
below.
When
IP
configuration
is
complete,
confirm
communications
locally
by
“pinging"
the
assigned
GTM116
IP
address
and
observing
5
rapid
blinks
of
the
ACTIVITY
LED
(Figure
6).
4.3.1
GTM116
‐
Selecting
Static
or
Dynamic
IP
Settings
For
automated
device
configuration
on
a
network/segment
with
a
properly
operating
DHCP
server,
go
to
the
NETWORK
Menu
settings,
set
*DHCP=ON,
set
*BAC
MODE=
for
BACnet/IP
(factory
default)
or
BACnet
Ethernet
operation,
and
set
*DI=
device
instance
number
(factory
default=2)
as
described
below.
No
additional
configuration
is
required.
For
manual
device
configuration
of
the
GTM116,
set
NETWORK
menu
item
*DHCP=OFF
(factory
default).
When
manually
changing
IP
settings
(*DHCP=OFF),
the
display
will
blink
the
3
‐
digit
address
segment
that
is
under
change.
Change
the
blinking
segment
by
pressing
the
UP
or
DOWN
buttons
to
arrive
at
the
desired
segment
setting.
Depress
the
ENTER
key
to
set
this
segment
and
to
move
the
blinking
cursor
to
the
next
(right)
segment.
Repeat
this
until
the
last
segment
has
been
selected,
and
then
depress
ENTER
to
store
the
new
address
setting.
4.3.2
GTM116
‐
Setting
Ethernet
Transmitter
IP
Address
The
GTM116
is
factory
set
with
an
IP
address
of
10.0.0.100.
Each
transmitter
must
be
assigned
a
unique
address
on
the
network/segment
it
is
connected
to.
To
change
the
IP
address
in
the
NETWORK
menu,
navigate
to
the
*IP=10.0.0
item,
and
set
segments
as
previously
described.
(See
note
above
regarding
*DHCP=OFF).
4.3.3
GTM116
‐
Setting
Subnet
Mask
To
change
this
value,
navigate
to
the
*MASK=255.2...
NETWORK
menu
item,
and
set
new
segment
values
as
previously
described.
(See
note
above
regarding
*DHCP=OFF).
4.3.4
GTM116
‐
Setting
Gateway
IP
To
change
this
value,
navigate
to
the
*GATE=10.0.0...
NETWORK
menu
item,
and
set
new
segment
values
as
previously
described.
(See
note
above
regarding
*DHCP=OFF).
4.3.5
GTM116
‐
Setting
BACnet
Protocol
Mode
The
GTM116
is
factory
set
with
*BAC
MODE=IP
for
BACnet
IP
protocol
operation.
This
NETWORK
menu
item
can
be
changed
to
*BAC
MODE=ETH
for
BACnet
Ethernet
protocol.
Tables
3,
4
and
5
provide
details
of
TCP/IP,
BACnet
Objects
and
Modbus
Register
Maps
respectively.
Note
that
Modbus
IP
is
always
enabled
regardless
of
*BAC
MODE
setting.
NOTE:
For
BACnet
IP
operation,
use
port
47808.
For
Modbus
TCP
operation,
use
port
502.
Modbus
IP
is
always
enabled
regardless
of
the
*BAC
MODE
setting.
4.3.6
GTM116
‐
Setting
Device
Instance
Number
The
GTM116
is
factory
set
with
a
Device
Instance
Number
of
2
(*DI=2).
The
Device
Instance
Number
can
be
set
to
any
value
between
0
and
4194302
as
shown
in
Appendix
A.
The
Device
Instance
Number
can
also
be
changed
by
writing
to
the
Device
Object's
Object
Identifier
Property
over
the
network.
