Ebyte E90-DTU User manual

Chengdu
Ebyte
ElectronicTechnology
Co.,Ltd
j.
Wireless
Modem
User
Manual
E90-DTU(230SL30)
All
rights
to
interpret
and
modify
this
manual
belong
to
Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
1.
Introduction
1.1
Brief
introduction
E90-DTU
(230SL30)
is
a
data
transceiver
with
military-grade
LoRa
modulation
technology.
With
multiple
transmission
modes,
it
works
in
the
(220.125-236.125MHz)
frequency
band
(default
230.125MHz).
The
transceiver
provides
transparent
RS232/RS485
interface
and
supports
8~.
28V
voltage
input.
LoRa
direct-sequence
spread
spectrum
technology
will
bring
longer
communication
distances,
and
has
the
advantages
of
concentrated
power
density
and
strong
anti-interference
ability.
It
features
a
software
FEC
forward
error
correction
algorithm,
which
has
high
coding
efficiency
and
strong
error
correction
capability.
In
the
case
of
sudden
interference,
it
can
proactively
correct
the
interfered
data
packets,
greatly
improving
reliability
and
transmission
distance.
In
the
absence
of
FEC,
such
packets
can
only
be
discarded.
It
has
data
encryption.
The
data
transmitted
by
the
transceiver
over
the
air
is
random,
and
the
data
interception
is
meaningless
through
strict
encryption
and
decryption
algorithms.
Packet
length
setting
is
available
to
support
different
real-time
and
data
packets.
It
works
in
the
ISM
230MHz
band
with
a
communication
distance
of
up
to
5km.
As
a
communication
medium,
wireless
data
transceiver
has
the
same
scope
as
optical
fiber,
microwave
and
bright
line:
it
provides
real-time
and
reliable
data
transmission
of
monitoring
signals
in
private
networks
under
certain
special
conditions,
with
low
cost,
installation
and
maintenance.
It
is
convenient,
has
strong
diffraction
ability,
flexible
networking
structure
and
long
coverage.
It
is
suitable
for
occasions
with
many
points
and
scattered,
complex
geographical
environment,
etc.
It
can
be
connected
with
PLC,
RTU,
rain
gauge,
liquid
level
meter
and
other
data
terminals.
1.1.
Certificate
E90-DTU
is
certified
with
CMIIT
ID:2017FP5780
by
SRRC.
E90-DTU
is
certified
with
“Certificate
of
conformity
on
explosive
application
protection”,
ID:
201711000975.
E90-DTU
is
certified
with
“Electrostatic
surge
test
report”
by
National
Institute
of
Measurement
and
Testing
Technology,
ID:
CNExl8.1461.
E90-DTU
is
certified
with
“Certificate
of
Design
Patent”,
Patent
Number:
ZL
2016
3
0501980.3.
E90-DTUis
certified
with
“Utility
model
patent
certificate”,
Patent
Number:
ZL
2016
2
1410691.3.
E90-DTU
is
certified
with
“CE”,ID:
CCISE180514601V.
E90-DTU
is
certified
with
“FCC”,
ID:
2ALPH-E90-DTU.
E90-DTU
is
certified
with
“RoHS”,
ID:
DTI201807025245.
1.2.
Features
★
All
core
components
are
imported,
featuring
the
most
advanced
functions,
the
smallest
volume
and
the
best
price.
★
Using
military-grade
LoRa
modulation
technology,
with
data
encryption,
the
packet
length
is
available
for
configuration.
★
Large
single
package,
single
package
is
up
to
240
bytes,
adapt
to
Modbus.
Copyright©2012-2019,
[«
2

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
(«:»)
EBYTE
★
Simple
and
efficient
power
supply
design,
support
power
adapter
or
crimping
mode,
support
8-28V
power
supply.
★
Transmit
power
is
up
to
1W,
multi-level
adjustable,
with
all
technical
indicators
meeting
European
industrial
standards.
★
Support
LBT
function,
the
transceiver
automatically
waits
to
send
data
according
to
the
current
ambient
noise
intensity.
The
communication
success
rate
of
the
module
in
harsh
environments
is
greatly
improved.
★
Remotely
configure
or
read
wireless
module
parameters
by
sending
command
packets
wirelessly.
★
Multi-level
relay
networking
can
be
realized
,
which
effectively
extends
communication
distance
for
ultra-long-distance
communication.
★
With
temperature
compensation
circuit,
the
frequency
stability
is
better
than
±1.5PPM.
★
Operating
temperature
range:
-40
°
C
~
+85
0
C,
to
adapt
to
a
variety
of
harsh
working
environment.
★
All-aluminum
alloy
casing,
compact
size,
easy
installation
and
good
heat
dissipation;
perfect
shielding
design,
with
good
electromagnetic
compatibility
and
strong
anti-interference
ability.
★
Multiple
protection
functions
such
as
power
reverse
connection
protection,
over-current
protection,
and
antenna
surge
protection
greatly
increase
the
reliability
of
the
device.
★
Powerful
software
functions,
all
parameters
can
be
programmed:
such
as
power,
frequency,
air
data
rate,
address
ID,
etc.
★
Ultra-low
power
consumption,
the
standby
current
is
only
10mA
(lower
than
power
consumption
in
power-saving
mode
and
sleep
mode),
and
the
transmitting
current
is
<0.1
A.
★
with
built-in
watchdog
and
precise
time
layout,
once
an
exception
occurs,
the
transceiver
will
automatically
restart,
and
continue
to
work
according
to
the
previous
parameters.
2.
Quick
Start
You
need
to
prepare
items
below,
1,
First
install
the
antenna
for
device,
then
install
the
power
supply,
and
ensure
that
the
dial
switch
is
in
the
correct
state.
The
user
can
select
the
crimping
method
or
the
power
adapter
to
supply
power
according
to
the
requirements.;
Copyright©2012-2019,
®[«
&R1
3

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
2,
C
onnect
the
DTU
to
computer
via
USB
to
RS-232
or
USB
to
RS-485
converter
etc.;
3,
S
tart
two
serial
port
debugging
assistants,
select
the
baud
rate
9600bps,
check
mode
as
8N1
to
realize
transparent
transmission;
TEST[2018-11-19
05:51:20.960]
TEST[2018-11-19
05:51:21.536]
TEST[2018-11-19
05:51:22.000]
□
mtm
m§:
[iooo
|
ms
i
1
mm
<$±m
□
0
SSiffT
0*
ft
9
T
f“]
:
WWW.
openedv.
com
O
▼
www.openedv.com
|
S:78
|
R:39
|
CTS=0
DSR=0
DCD=01
SmTOll
17:51:43
9600
ifitfn
i
mu
s
ft.
mm
mm
□
letSfJSjfsD
□
RTS
□
DTR
0
mmwmmmti)
mm
-
□
x
aais
COM3:USB-SERIAL
CTl
XCOM
V2.0
4.
I
f
customer
needs
to
modify
the
parameters,
please
dial
the
switch
in
the
configuration
mode
and
connect
to
the
computer.
Open
the
E90-DTU
SL
configuration
software,
you
can
modify
the
relevant
parameters.
After
completing
the
configuration,
you
must
restore
the
DIP
switch
status
for
communication.
Copyright©2012-2019,
tfeT'TTSW
[«£19
4

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
Mode
0
Factory
default
Mode
2
Parameter
configuratio
3.
Dimensions
3.1.
Parts
description
©
_
©1
□
□□□
-CD
r-®
r®
©
(
\
(
)
(
)
✓
s®
(«:»)
E90-DTU
EBYTE
DATA
TRANSCEIVER
RS232
antY
m
MO
ZD
Ml
ZD
D®
5
485_A
KD
KD
□
®1
485
B
ill
o
o
o
DC
0®)
GND
PWR
TXD
RXD
©-c-@
vcc
C
)
(
)
V_/
Copyright©2012-2019,
5

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
(«:»)
EBYTE
No.
Name
Function
Note
1
DB-9
female
socket
RS-232
interface
Standard
RS-232
interface
2
3.81
terminal
block
RS-485,
power
interface
Standard
RS-485
interface
and
pressure
line
power
interface
3
PWR-LED
Power
LED
Red,
lit
when
the
power
is
on
4
TXD-LED
Transmit
LED
Yellow,
blinks
when
sending
data
5
RXD-LED
Receive
LED
Yellow,
blinks
when
receiving
data
6
DC
power
interface
Power
interface
In-line
round
hole,
outer
diameter
5.5mm,
diameter
2.5mm
7
DIP
switch
DIP
switch
Controlled
by
working
mode
8
Antenna
interface
SMA-K
interface
external
thread,
10mm,
50£2characteristic
impedance
3.2.
Dimensions
c
c
k
□
®5
□
®)
r
□
®5
-
c
)
(((;)))
E90-DTU
DATA
TRANSCEIVER
RS232
485_A
485_B
GND
VCC
o
o
o
PWR
TXD
RXD
ANT
DC
Y
10
j
wh-±
MO
Ml
I
ik
(
)
Unit:
mm
Copyright©2012-2019,
®tfeEFTTSW
[«
6

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:»)
EBYTE
4.
Interface
definition
4.1.
P
ower
interface
Users
can
choose
©
DC
power
interface,using
the
power
adapter
supply
with
the
interface
of
the
5.5mm
outer
diameter
,
2.5mm
diameter
;
Also
users
can
choose
the
VCC
and
GND
terminal
power
supply
from
(D
,
both
are
optional;
8
~
28V
DC
power
supply,
it
is
recommended
to
use
12V
or
24V
DC
power
supply
for
E90-DTU.
4.2.
RS232
The
E90-DTU
can
be
connected
to
the
device
via
RS-232
using
the
standard
DB-9
interface.
4.3.
RS485
E90-DTU
can
be
connected
to
the
485
A
terminal
and
485
B
terminal
from
(D
with
the
RS-485
A
terminal
and
B
terminal
of
other
device
respectively.
Pin
NO.
Definition
Function
Description
1
VCC
Crimping
power
interface,
positive
8
~
28V
DC,
recommended
12V
or
24V
2
GND
Crimping
power
interface,
negative
The
power
supply
negative
pole
is
connected
to
the
system
ground
and
the
housing
3
485_B
RS-485
interface,
interface
B
The
RS-485
interface
B
is
connected
to
the
device
interface
B
4
485_A
RS-485
interface,
interface
A
The
RS-485
interface
A
is
connected
to
the
device
interface
A
Copyright©2012-2019,
®WZ4B#
4TT4SW
[«
7

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
★
Note:
The
transceiver
will
be
in
poor
communication
when
connected
to
multiple
devices
,
it
is
recommended
to
be
connected
to
a
single
device,
please
try
to
use
parallel
120£2
resistor
between
485
A
terminal
and
485_B.
5.
Technical
specification
5.1.
Model
specification
Model
No.
Frequency
TX
power
Distance
Features
Recommended
application
Hz
mW
km
E90-DTU(230SL30)
230.125M
1000
10
LoRa,
anti-interference
Suitable
for
transmission
of
fast
speed
in
complex
environment
with
data
interference
over
a
long
distance
Note:
Test
condition:
in
clear
and
open
air
without
shelters,
12V
/2A
power
supply,
5dBi
gain
sucker
antenna
over
2
meters
height
from
the
ground,
with
the
factory
default
parameters.
5.2.
General
specification
parameter
No.
Item
Value
Note
1
Size
82
*
62
*
25
mm
See
more
in
3.2.
Dimensions
2
Weight
130g
±4.5
g
3
Temperature
-40°C
~
85°C
Meet
industrial
request
4
Antenna
impedance
50
n
Standard
50
fi
characteristic
impedance
5
Supply
voltage
+8
~
+28V
DC
It
is
recommended
to
use
12V
or
24V
6
Communication
interface
RS232/RS485
Standard
DB9
hole
/
3.81
terminal
block
7
Baud
rate
Default
9600
From
1200-115200
8
Address
Default
0
65536
configurable
address
Copyright©2012-2019,
4TT4SW
[«

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
5.3.
F
requency
and
channel
numbers
Model
No.
Default
Frequency
Frequency
Range
Channel
Interval
Channel
numbers
Hz
Hz
Hz
E90-DTU(230SL22)
230.125M
220.125-236.125MHz
250k
65,
half
duplex
★
Note:
In
the
same
area
when
multiple
data
transceivers
are
communicating
one
to
one
at
the
same
time
,
it
is
recommended
to
set
the
channel
spacing
between
each
group
of
data
transceivers
at
2MHz
or
more.
5.4.
T
ransmitting
power
Model
No.
30dBm
27dBm
24dBm
21
dBm
E90-DTU(230SL30)
V
V
V
V
★
Note:
The
lower
the
transmit
power,
the
closer
the
transmission
distance,
but
the
working
current
won’t
be
declined
in
exact
proportion
,
it
is
recommended
to
use
the
maximum
transmit
power.
5.5.
A
ir
data
rate
Model
Default
Levels
Air
data
rate
(bps)
bps
bps
E90-DTU(230SL30)
2.4k
7
0.3,
0.6,
1.2,
2.4,
4.8,
9.6,
15.6k
★
Note:
The
higher
the
air
data
rate,
the
faster
the
transmission
rate,
the
transmission
distance
is
also
closer;
when
the
rate
meets
the
requirements
,
the
lower
air
data
rate,
the
better
quality.
5.6.
C
urrent
Model
TX
current
mA
Standby
current
mA
12V
24V
12V
24V
E90-DTU(230SL30)
276
141
21
13
★
Note:
It
is
recommended
to
retain
more
than
50%
of
the
current
margin
when
selecting
the
power
supply,
which
will
help
the
data
transceiver
to
work
steadily
for
a
long
time.
Copyright©2012-2019,
[«
9

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
(«:»)
EBYTE
5.7.
TX
and
RX
FIFO
and
sub-packing
method
Model
No.
Buffer
Sub-packing
method
E90-DTU(230SL30)
1000
bytes
Can
be
sub-packed
to
32/64/128/240
byte
each
time
via
command
★
Noted.
When
the
receiving
data
is
more
than
a
single
packet
capacity,
the
beyond
part
will
be
automatically
assigned
to
the
second
transmission
until
it
is
completed;
2.
The
data
transceiver
can
not
receive
data
which
is
more
than
the
buffer
capacity;
6.
Function
Description
6.1.
Fixed
Transmission
00
03
04
AA
BB
Target
address
Target
channel
Data
Address
Channel
No
output
No
output
Address
Channel
6.2
Broadcast
Transmission
:
F
FF04
AA
BE
Address
Channel
Data
'
'
I
Address
Channel
No
output
Address
Channel
Copyright©2012-2019,
iTf-dSlt
[«
10

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
6.3
Broadcast
Address
•
For
example:
Set
the
address
of
module
A
as
OxFFFF
and
channel
as
0x04;
•
When
module
A
is
the
transmitter
(same
mode,
transparent
transmission),
all
modules
under
channel
0x04
will
receive
the
data,
the
purpose
of
broadcast
is
realized.
6.4
Monitor
Address
•
For
example:
Set
the
address
of
module
A
as
OxFFFF
and
channel
as
0x04;
•
When
module
A
is
the
receiver,
it
can
receive
the
data
sent
from
all
modules
under
channel
0x04.
The
purpose
of
monitor
is
realized.
7.
Operating
mode
There
are
four
operating
modes,
if
low
power
consumption
is
not
required,
for
normal
communication
it
is
recommended
to
configure
the
data
transceiver
to
the
normal
mode
(mode
0);
The
factory
default
is
normal
mode
(mode
0).
Categories
Ml
M0
Notes
Mode
0
Normal
Mode
ON
ON
Open
UART
Comm
port
and
RF,
transparent
transmission
is
on,
configuration
over
air
via
special
command
is
available.
Mode
1
WOR
Mode
ON
OFF
Can
be
defined
as
WOR
transmitter
and
WOR
receiver,
WOR
is
available.
Mode
2
Configuration
Mode
OFF
ON
Users
access
the
register
through
the
serial
port
to
control
the
working
state
of
the
device.
The
DTU
can
be
configured
through
the
configuration
software
on
computer.
Mode
3
Sleep
Mode
OFF
OFF
DTU
is
in
sleep
mode.
Mode
0
Mode
I
Mode
2
Note:
WOR(mode
1)
and
sleep
mode(mode
3)
are
for
low
power
consumption.
If
users
do
not
require
low
power,
then
it
is
OK
to
use
mode
0
and
mode2
only.
Copyright©2012-2019,
4TT4SW
[«
11

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
7.1.
N
ormal
mode
(
mode
0)
MO
=
ON,
Ml
=
ON,
device
works
in
Mode
0
Transmitting
Users
send
data
via
UART.
The
device
will
start
wireless
transmission.
Receiving
Wireless
receiving
is
enabled,
data
received
will
be
output
via
pin
TXD.
7.2.
W
ORmode
(model)
MO
=
OFF,
Ml=ON,
device
works
in
Mode
1
Transmitting
As
a
transmitter,
a
certain
preamble
code
will
be
added
before
each
transmission.
Receiving
Wireless
receiving
is
enabled,
its
function
is
same
as
Mode
0.
7.3.
C
onfiguration
mode
(mode
2)
MO
=
ON,
Ml
=
OFF,
device
works
in
Mode
2
Transmitting
Wireless
transmission
is
off.
Receiving
Wireless
receiving
is
off.
Configuration
Users
can
visit
register
to
configure
the
working
status.
7.4.
S
leep
mode
(mode
3)
MO
=
OFF,
Ml
=
OFF,
device
works
in
Mode
3
Transmitting
Wireless
transmission
is
unavailable.
Receiving
Wireless
receiving
is
unavailable.
Note
When
entering
other
modes
from
the
sleep
mode,
the
parameters
will
be
reconfigured.
During
the
configuration
process,
AUX
remains
low
level;
After
the
configuration,
it
outputs
high
level,
it
is
recommended
that
users
detect
the
rising
edge
T
BUSY.
Copyright©2012-2019,
®[«
12

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
8.
Register
read
and
write
control
8.1.
Command
format
In
configuration
mode
(mode
2:
Ml=OFF,
MO=ON)
,
supported
commands
are
as
follows
(only
9600,
8N1
are
available)
NO
Command
format
Description
1
Configure
register
command:
CO+start
address+length+parameter
Reply:
Cl+start
address+length+parameter
Example
1
:
set
channel
as
0x09
command
start
address
length
parameter
Transmit:
CO
05
01
09
Return:
Cl
05
01
09
Example
2:
set
module
address
(0x1234),network
address
(Ox0O),UART(96OO
8Nl),air
data
rate(1.2K)
Transmit:
CO
00
04
12
34
00
61
Return:
Cl
00
04
12
34
00
61
2
Read
register
Command:
C1
+start
address+length
Reply:
Cl+start
address+length+parameter
Example
1:
read
channel
command
start
address
length
parameter
Transmit:
Cl
05
01
Return:
Cl
05
01
09
Example
2:
read
module
address,
network
address,
UART
and
air
data
rate
Transmit:
Cl
0004
Return:
Cl
00
04
12
34
00
61
3
Configure
temporary
register
Command:
C2
+start
address+length+parameter
Reply:
Cl
+start
address+length+parameter
Example
1:
Set
channel
as
0x09
command
start
address
length
parameter
Transmit:
C2
05
01
09
Return:
Cl
05
01
09
Example
2:
set
module
address
(0x1234)
,
network
address
(0x00),
UART
(9600
8N1),
air
data
rate
(1.2K)
Transmit:
C2
00
04
12
34
00
61
Return:
Cl
00
04
12
34
00
61
5
Wireless
configuration
Command:
CF
CF
+
general
command
Reply:
CF
CF
+
general
response
Example
1:
set
channel
as
0x09
wireless
command
head
command
start
address
length
parameter
Transmit:
CF
CF
CO
05
01
09
Return:
CF
CF
Cl
05
01
09
Example
2:
set
module
address
(0x1234)
,
network
address(OxOO),
UART(9600
8N1),
air
data
rate(1.2K)
Transmit:
CF
CF
CO
00
04
12
34
00
61
Return:
CF
CF
Cl
00
04
12
34
00
61
6
Format
error
Reply:
FF
FF
FF
Copyright©2012-2019,
[«
13

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
8.2.
Register
description
Address
00H
Read/W
rite
Read/W
rite
Name
ADDH
ADDH
(Default
0)
01H
Read/W
rite
ADDL
ADDL
(Default
0)
Description
02H
Read/W
rite
NETID
NETID
(Default
0)
7,
6,
5
UART
baud
rate
(bps)
000:
baud
rate
is
1200
001:
baud
rate
is
2400
010:
baud
rate
is
4800
Oil:
baud
rate
is
9600
(Default)
100:
baud
rate
is
19200
101:
baud
rate
is
38400
110:
baud
rate
is
57600
111:
baud
rate
is
115200
Remark
High
and
low
byte
of
the
module
address.
Note:
When
the
module
address
is
FFFF,
it
can
be
used
as
the
broadcast
and
monitor
address,
that
is
the
module
will
not
perform
address
filtering.
_
Network
address,
used
to
distinguish
the
network.
When
communicating
with
each
other,
they
should
be
set
to
the
same.
_
For
the
two
modules
that
communicate
with
each
other,
the
serial
port
baud
rate
can
be
different,
and
the
verification
method
can
also
be
different.
When
transmitting
large
packets
continuously,
users
need
to
consider
the
data
blocking
caused
by
the
same
baud
rate,
and
data
may
even
be
lost.
It
is
generally
recommended
that
both
parties
have
the
same
baud
rate.
03H
Read/W
rite
REG0
UART
parity
bit
00:
8N1
(Default)
01:
801
10:
8E1
11:
8N1
(same
as
00)
•
It
should
be
the
same
for
both
communication
parities
.
•
The
higher
the
rate,
the
shorter
the
distance.
2
,
5
04H
Read/W
rite
REG1
1,
0,
air
data
rate
000:
air
data
rate
is
0.3k
001:
air
data
rate
is
1.2k
010:
air
data
rate
is
2.4k
(Default)
011:
air
data
rate
is
4.8k
100:
air
data
rate
is
9.6k
101:
air
data
rate
is
19.2k
110:
air
data
rate
is
38.4k
111:
air
data
rate
is
62.5k
6:
sub-packing
setting
00:
240byte
(Default)
01:
128byte
10:
64byte
11:
32byte
enable
RSSI
environmental
noise
1:
on
0:
off
(Default)
•
When
the
data
is
smaller
than
the
sub
packet
length,
the
serial
output
of
the
receiving
end
is
an
uninterrupted
continuous
output.
When
the
data
is
larger
than
the
sub
packet
length,
the
receiving
end
serial
port
will
output
the
sub
packet.
•
When
enabled,
the
CO
Cl
C2
C3
command
can
be
sent
in
the
transmitting
mode
or
WOR
transmitting
mode
to
read
the
register.
Register
0x00:
Current
ambient
noise
rssi
Register
0X01:
rssi
when
the
data
was
received
last
time.
(Current
channel
noise
is:
dBm
—RSSI/2)
4,
3,
2
remain
Command
format:
CO
Cl
C2
C3
+
starting
address
+
read
length
Returns:
Cl
+
address
address
+
read
length
+
read
valid
value
E.g:
send
CO
Cl
C2
C3
00
01
Return
Cl
00
01
rssi
1,
0:
TX
power
Copyright©2012-2019,
l£#fZdS#
PS
14

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
00:
22dbm
(Default)
01:
17dbm
10:
13dbm
11:
1
Odbm
Power
and
current
are
nonlinear,
and
power
efficiency
is
highest
at
maximum
power.
The
current
does
not
decrease
in
proportion
to
the
decrease
in
power.
05H
Read/W
rite
REG2
Channel
(CH)
0-83
stands
for
84
channel
respectively
Actual
ffequency=
410.125
+
CH
*1M
7
enable
RSSI
byte
1:
on
0:
off
(Default)
fixed
transmission
1:
fixed
transmission
0:
transparent
transmission
(Default)
enable
repeater
1:
on
0:
off
enable
LBT
(listen
before
transmit)
1:
on
0:
off
(Default)
06H
Read/W
rite
REG3
3
WOR
TX
and
RX
control
1:
WOR
transmitter
TX
and
RX
are
enabled,
certain
preamble
code
is
added
when
transmitting
date.
Data
receiving
is
on.
0:
WOR
receiver
(Default)
Transmission
is
unavailable.
Module
works
in
WOR
monitoring,
(see
details
about
WOR
time
below)
to
save
power.
2,
1,
0,
WOR
time
000
001
010
011
100
101
110
111:
4000ms
500ms
1000ms
1500ms
2000ms
(Default)
2500ms
3000ms
3500ms
When
enabled,
the
module
receives
wireless
data
and
it
will
follow
an
RSSI
strength
byte
after
output
via
the
serial
port
TXD
The
module
recognizes
the
first
three
bytes
of
the
serial
data
as:
address
high
+
address
low
+
channel
and
takes
it
as
the
wireless
transmitting
target.
After
the
reply
function
is
enabled,
if
the
target
address
is
not
the
module
itself,
the
module
will
forward
it
once.
In
order
to
prevent
data
return-back,
it
is
recommended
to
use
it
in
conjunction
with
the
fixed
point
mode.
That
is:
the
target
address
is
different
from
the
source
address.
When
enabled,
wireless
data
will
be
monitored
before
it
is
transmitted,
which
can
avoid
interference
to
a
certain
extent,
but
may
cause
data
delay.
Only
valid
in
Mode
1.
After
the
WOR
receiver
receives
the
wireless
data
and
outputs
it
through
the
serial
port,
it
will
wait
for
1000ms
before
entering
the
WOR
again.
Users
can
input
the
serial
port
data
and
return
it
via
the
wireless
during
this
period.
Each
serial
byte
will
be
refreshed
for
1000ms.
Users
must
transmit
the
first
byte
within
1000ms.
Only
valid
in
Mode
1.
Time
T=
(1+WOR)
*500ms,
Max
4000ms,
Min
500ms
The
longer
the
WOR
monitoring
interval
period,
the
lower
the
average
power
consumption,
but
the
greater
the
data
delay
Both
the
transmitter
and
the
receiver
must
be
the
same
(very
important).
07H
Write
CRYPT
H
key
high
byte
(Default
0)
08H
Write
CRYPT
L
key
low
byte
(Default
0)
•
Write
only,
read
and
return
0.
•
Used
for
user
encryption
to
avoid
intercepting
airborne
wireless
data
by
similar
modules.
•
The
module
will
internally
use
these
two
bytes
as
a
calculation
factor
to
transform
and
encrypt
the
over-the-air
wireless
signal.
Copyright©2012-2019,
[«
15

«<:>»
EBYTE
Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
80H~
86H
Read
only
PID
7
bytes
of
product
information
•
product
information:
7
bytes
8.3.
Factory
default
parameter
Default
parameter:
62
00
00
00
00
00
Model
NO.
Frequency
Address
Channel
Air
data
rate
Baud
rate
Parity
bit
TX
power
E90-DTU(230SL30)
230MHz
0x0000
0x28
2.4kbps
9600
8N1
1W
9.
Repeater
networking
mode
No.
Description
1
After
setting
the
repeater
mode
by
configuration,
switch
to
the
normal
mode
and
the
repeater
starts
working.
2
In
the
repeater
mode,
ADDH,
ADDL
are
no
longer
used
as
the
module
address,
but
is
correspondingly
paired
with
the
NETID.
If
the
data
of
one
of
the
networks
is
received,
it
is
forwarded
to
another
network.
The
network
ID
of
the
repeater
itself
is
invalid.
3
In
repeater
mode,
the
repeater
module
cannot
transmit
and
receive
data,
and
cannot
perform
low-power
operation.
4
The
user
enters
the
other
mode
from
mode
3
(sleep
mode)
or
during
the
reset
process,
the
module
resets
the
user
parameters
during
which
the
AUX
outputs
low
level.
Repeater
networking
rules:
1.
Forwarding
rules,
the
repeater
can
forward
data
in
both
directions
between
two
NETIDs.
2.
In
repeater
mode,
ADDH\ADDL
is
no
longer
used
as
the
module
address,
and
it
is
used
as
a
NETID
forwarding
pairing
flag.
Figure:
0
Primary
repeater
“Node
1”
NETID
is
08.
“Node
2”
NETID
is
33.
Primary
repeater
1
‘s
’ADDH\ADDL
are
08,
33.
So
the
signal
sent
by
node
1
(08)
can
be
forwarded
to
node
2
(33)
At
the
same
time,
node
1
and
node
2
have
the
same
address,
so
the
data
transmitted
by
node
1
can
be
received
by
node
2.
(2)
Secondary
repeater
Secondary
repeater’s
ADDH\ADDL
are
33,
05.
Therefore,
Repeater
2
can
forward
the
data
of
Repeater
1
to
the
network
NETID:
05.
Thus
node
3
and
node
4
can
receive
node
1
data.
Node
4
outputs
data
normally,
and
node
3
has
a
different
address
than
node
1,
so
no
data
is
output.
(D
Two-way
repeater
As
shown
in
the
figure:
the
data
sent
by
node
1,
the
nodes
2,
4
can
receive
the
data
sent
by
node
2,
4,
and
node
1
can
also
receive
it.
Copyright©2012-2019,
[«
16

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
Nodel
:
123
”
E22-400T22S
(Node!)
ADDH:12
ADDL34
NETID:08
and
it
is
used
as
a
NETID
forwarding
pairing
flag
E22-400T22S
(Repeater
2)
ADDH:08
ADDL:33
NETID:
Invalid,
"si
f
E22-400T22S
A
(Node3)
<4
ADDH:12
Node3
123
ADDL:34
/
V
NETID:05
y
/
addres,
s.
/
/
^
E22-400T22S
N
F22-400T22S
N
(Repeater
2)
ADDH:33
ADDL05
y
/
L
/
►
(Node4)
ADDH:12
ADDL:36
NETID:05
\
/
Node
4
and
Node
2
module
addresses
are
different
and
no
output
E22-400T22S
y
/
E22-400T22S
\
(Node2)
ADDH:12
ADDL:34
NETID:33
y
V
(Node5)
ADDH:12
ADDL:34
NETID:07
J
Node
5
and
Node
3
network
addresses
are
different
and
no
output
Node2
12
10.
Configuration
instructions
on
computer
•
The
following
figure
shows
the
E90-DTU
SL
configuration
interface
on
computer,
users
can
switch
to
the
command
mode
through
M0M1,
and
quickly
configure
and
read
the
parameters
on
computer.
jH
RF_Setting(E90-DTU
SL)_V1.6
-
X
(«;»)
EBYTE
Chengdu
Ebyte
Electronic
Technology
Co.,Ltd.
i
**
i
English
v
tfifmn
:
www.ebvte.com
•
In
the
configuration
on
computer,
the
module
address,
frequency
channel,
network
ID,
and
key
are
all
in
decimal
mode.
The
range
of
values
of
each
parameter
is:
Network
address:
0-65535
Frequency
channel:
0-83
Network
ID:
0-255
Copyright©2012-2019,
[«£19
17

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
(«:»)
EBYTE
Key:
0-65535
•
When
the
user
configures
the
repeater
mode
using
the
host
computer,
special
attention
must
be
paid.
Since
the
parameters
are
in
decimal
mode
in
the
host
computer,
the
module
address
and
network
ID
need
to
be
converted
into
hexadecimal.
For
example,
if
the
network
ID
input
by
the
transmitting
end
A
is
02,
and
the
network
ID
input
by
the
receiving
end
Bis
10,
when
the
repeater
end
R
sets
the
module
address,
the
hexadecimal
value
0X020A
is
converted
into
the
decimal
value
522
as
the
repeater
end
R.
Module
address.
That
is,
the
module
address
value
of
the
repeater
terminal
R
is
522
at
this
time.
11.
Programming
the
modem
il
l.
Connection
diagram
Operating
mode
Ml
MO
Note
Configuration
mode
OFF
ON
Programming
via
the
configuration
software
is
available
only
in
this
mode
Copyright©2012-2019,
[«£19
18

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
«<:>»
EBYTE
1,
When
programming,
please
check
whether
the
device
is
in
correct
operating
mode
as
shown
above.
2,
Users
can
modify
parameters
via
E90-DTU
SL
configuration
software.
2.Connection
diagram
in
test
and
practical
application
PC
or
(PLC/RTU)
Power
Adapter
Pick
one
of
two
power
supplies
r—i
r"i
"
_
10
~
28V
DC
power
supply
Wireless
data
transceiver
Copyright©2012-2019,
Wf-ttStT
[«£19
19

Chengdu
Ebyte
Electronic
Technology
Co.,
Ltd.
E90-DTU
SL
User
Manual
(«:»)
EBYTE
12.
E90-DTU
Model
No.
Interface
Frequency
Hz
TX
Power
dBm
Distance
km
Features
E90-DTUi230SL221
RS232
RS485
230M
22
5
Low
frequency
LoRa,
ultra
strong
diffraction
ability
for
complex
environment
E90-DTUI230SL30')
RS232
RS485
230M
30
10
Low
frequency
LoRa,
ultra
strong
diffraction
ability
for
complex
environment
E90-DTU1400SL221
RS232
RS485
433M\470M
22
5
LoRa,wireless
configuration,
networking
transmission,
long
distance,
anti-inference
E90-DTU1400SL301
RS232
RS485
433M\470M
30
10
LoRa,
wireless
configuration,
networking
transmission,
long
distance,
anti-inference
E90-DTU1900SL221
RS232
RS485
868M\915M
22
5
LoRa,
wireless
configuration,
networking
transmission,
long
distance,
anti-inference
E90-DTU1900SL30')
RS232
RS485
868M\915M
30
10
LoRa,
wireless
configuration,
networking
transmission,
long
distance,
anti-inference
E90-DTUn70L30)
RS232
RS485
170M
30
8
LoRa,
strong
diffraction
ability
E90-DTUf433L301
RS232
RS485
433M
30
8
LoRa,
long
distance,
anti-inference
E90-DTUY433L37I
RS232
RS485
433M
37
20
LoRa,
20km
ultra
long
distance,
anti-inference
E90-DTUI433C301
RS232
RS485
433M
30
3
High-speed
continuous
transmission,
ModBus
protocol
E90-DTUI433C331
RS232
RS485
433M
33
4
High-speed
continuous
transmission,
ModBus
protocol
E90-DTU
(433C37)
RS232
RS485
433M
37
10
High-speed
continuous
transmission,
ModBus
protocol,
long
distance
E90-DTUf230N27t
RS232
RS485
230M
27
5
Low
frequency
narrow
band,
for
complex
environment
E90-DTUI230N33I
RS232
RS485
230M
33
8
Low
frequency
narrow
band,
for
complex
environment
E90-DTUf230N37t
RS232
RS485
230M
37
15
Low
frequency
narrow
band,
for
complex
environment,
strong
diffraction
ability
Copyright©2012-2019,
®WffSWK£19
20
Other manuals for E90-DTU
25
This manual suits for next models
1
Table of contents
Other Ebyte Modem manuals

Ebyte
Ebyte NB124S User manual

Ebyte
Ebyte E90-DTU User manual

Ebyte
Ebyte E851-RTU User manual

Ebyte
Ebyte E830 Series User manual

Ebyte
Ebyte E870-W1 User manual

Ebyte
Ebyte E90-DTU User manual

Ebyte
Ebyte E90-DTU User manual

Ebyte
Ebyte ME31-XXXA0006 User manual

Ebyte
Ebyte E840-DTU User manual

Ebyte
Ebyte E104-BT5040U User manual

Ebyte
Ebyte E62-DTU (433D30) User manual

Ebyte
Ebyte E70-DTU User manual

Ebyte
Ebyte E840-DTU User manual

Ebyte
Ebyte E90-DTU User manual

Ebyte
Ebyte E851-RTU User manual

Ebyte
Ebyte E90-DTU User manual

Ebyte
Ebyte M31 Series User manual

Ebyte
Ebyte E78-DTU(470LN22) User manual

Ebyte
Ebyte E890-915LG12 User manual

Ebyte
Ebyte NA611 User manual