Eastron SDM230-LoRaWAN User manual

SDM230-LoRaWAN User Manual
SDM230-LoRaWAN
DIN Rail Smart Energy Meter for Long Range Wireless Communication
USER MANUAL
2020 V1.0

SDM230-LoRaWAN User Manual
Contents
1. Introduction 1
1.1 Unit Characteristics 1
1.2 Pulse Outputs 1
1.3 LoRaWAN Classes 1
1.4 Active Upload Mode 1
1.5 Join 2
1.6 Communication 2
2. Start Up Screens 4
3. Measurements 5
4 Setting Up 10
4.1 Setting 1 11
4.1.1 Pulse Output Type 11
4.1.2 Pulse Constant 11
4.1.3 Pulse Duration 12
4.1.4 Demand Interval Time (DIT) 13
4.1.5 Automatic Scroll Time Interval 13
4.1.6 Backlight Time(LP) 14
4.1.7 Clear Demand Information 15
4.1.8 Password 16
4.1.9 Checking Meter Information 17
4.3 Setting 2 20
4.3.1 Join Information 20
4.3.2 Join Mode: OTAA/ABP 22
4.3.3 Re-Join 22
4.3.4 Auto: Upload ON/OFF, Upload Interval Time -------------------------------------------------------------23
4 3.5 Join Delay 24
4 3.6 OFF Line 25
43.7 Confirm Mode 26
5Specifications 27
6Maintenance 28
7Installation 29
7.1 Safety 29
7.2 EMC Installation Requirements 29
7.3 Dimensions 30
7.4 Wiring Diagram 30

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1Introduction
This document provides operating, maintenance and installation instructions .
The unit measures and displays the characteristics of single phase two wire(1p2w) supplies,
including kWh, kVArh, kW, kVAr, kVA, PF, Frequency, Voltage, Current, dmd. THD etc. It support
Max.100A direct connection, saving the cost to install external CTs. Maximum demand current
can be measured over preset periods of up to 60 minutes.
This unit has a built-in LoRaWAN module which allows long range wireless communication. Two
pulse outputs are available for real time energy measurement.
1.1 Unit Characteristics
The Unit can measure and display:
voltage and current
Frequency
Power, maximum power demand and power factor
Active energy imported and exported
Reactive energy imported and exported
The unit has password-protected set-up screens for:
Changing password
Demand Interval time, backlight time,scroll display time
Reset for demand and partial energy measurements
Pulse output type/ constant/ duration
1.2 Pulse outputs
The unit provides two pulse outputs. Both pulse outputs are passive type.
Pulse output 1 is configurable. The pulse output can be set to generate pulses to represent total/
import/ export kWh or kVArh.
The pulse constant can be set to generate 1 pulse per:
1 = 1 kWh/kVArh
10 = 10 kWh/kVArh
100 = 100 kWh/kVArh
1000=1000 kWh/kVArh
Pulse width: 200/100(default)/60ms.
Pulse output 2 is non-configurable. It is fixed to export kWh. The constant is 1000imp/kWh.
1.3. LoRaWAN Classes
Eastron LoRaWAN energy meter is implement Class C functionality. The device will upload
message after receiving the data sent from the network.
1.4 Active Upload Mode
The device also can be customized to active upload mode. Total 19 parameters can be set for
automatic uploading.
Interval time can be set from 0 to 255 through communication. 0 means the function is OFF. If

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there are many parameters, the interval shouldn’t be set too short in case of conflicting on data
uploading.
The meter will upload automatically once it joins the network. And after the interval time, it will
upload again.
The interval time is calculated since the last data uploading. Sometimes the interval time may
have around 1-2 minutes difference due to the timer error.
1.5 Join
The unit uses standard LoRaWAN protocol for long range communication. Before Communication,
the meter has to join the LoRaWAN network first.
There are two Activation Ways for Joining: OTAA(Over-the-Air Activatioin) and ABP(Activation by
Personalization).
To ensure the meter join gateway successfully, below information must be confirmed:
I. DevEui, AppEui, Appkey or DevAddr, NwkSKey, AppSKey information are correctly recorded into
the gateway.
II. The Uplink and downlink frequency are same as the gateway.
III. RX2 (frequency and SF) information are same as the gateway.
If the Join delay function is ON, the meter will join the network with a few seconds delay by
random.
1.6 Communication
LoRaWAN meter communicate based on international general purpose protocol. The
communication data is placed in data segment of LoRaWAN protocol, they will be appointed
follow the specified command format.
The format of standard LoRaWAN is shown below:
The following description of the text is defined the data in the segment of FRMPayload region in
LoRaWAN protocol. The software in PC only need to get this part of data from gateway. According
to the following protocol definition to parse the data.
The data format and encoding of meter communication protocol are modified based on the
Modbus ASCII transmission mode. Remove the start and end characters from the Modbus ASCII
transmission mode and change LRC validation to CRC validation.

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Encoding of data: communication data is encoded with ASCII, and each byte of data is sent with
two ASCII characters.
E.g.: a byte data 0x5b is encoded as two characters: 0x35 and 0x62 (ASCII code 0x35= "5", 0x62=
"b")
Command format definition:
I: The data format of the gateway sending the copy command:
Reserved Function
Code
The first Address of The
Register to Read Data
The Number of Registers
to Read Data
CRC Check
Codes
1byte 1byte 2byte 2byte 2byte
Note: the reserved bit is fixed as 0x01
II: the data format returned by the meter after receiving the copy command:
Reserved Function
Code
The Length of
Data Returned
Specific Data Returned by The
Meter
CRC Check
Codes
1byte 1byte 1byte N byte 2byte
Note: the reserved bit is fixed as 0x01
III: Note: the above commands need to be ASCII, so 1byte data will have 2 characters.
E.g.
1). Suppose to read the current data of the meter L1, the data sent by the gateway is the ASCII
coded data as shown in the following table:
Note: the first address of the register of the meter L1 current is 00 06 and the number of registers
is 2.
2) After receiving the above command, the meter will return the current L1 current data of the
meter, as shown in the following table after ASCII coding.

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Note: Assume that the current meter's L1 current is 5.0A, since the data is in floating point
format, the Hex data is converted to 0x40, 0xa0, 0x00 and 0x00.
To ensure the successful communication, below information must be confirmed:
1. The command is sent through Class C mode.
2. The command is sent in ASCII format.
2. Start Up Screens
The first screen lights up all display segments and
can be used as a display check.
The second screen indicates the firmware version.
(left picture is for reference only)

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The interface performs a self-test and
indicates the result if the test passes.
*After a short delay, the screen will display active energy measurements.
3. Measurements
The buttons operate as follows:
Selects the measured parameters
In Set-up Mode, this is the “Up” button.
In Set-up Mode, this is the “Enter”, “Left” and “Confirm”
button
The display order by scroll button :
Total kWh
Import kWh

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Export kWh
Resettable total kWh
Total kVArh
Import kVArh

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Export kVArh
Resettable total kVArh
Max. power demand
Voltage

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Current
Active Power
Reactive Power
Apparent Power

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Power Factor
Frequency
Pulse constant
ID (High address)

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ID (Low address)
Total running time
4. Setting Up
To enter set-up mode, pressing the button for 3 seconds, until the password screen
appears.
Display
Descriptions
The setting is done correctly
The setting is not correct

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4.2 Setting 1
Input Password “1000”, press for 3s to enter into the setting up page.
4.2.1 Pulse Output Type:
Pulse Output Type
Default: kVArh
Range: kVArh, imp kVArh, Exp kVArh, kWh, Exp
kWh, imp kWh.
Press for 3s, the red part will flash. Press
to choose the required selection.
Press for 3s to confirm.
4.2.2 Pulse Constant
Use this to set the energy represented by each pulse
Pulse Constant
Default: 1000 kWh
(means 1 impulse represent 1000kWh)
Range: 1 / 10/ 100/ 1000 kWh

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Press for 3s, the red part will flash.
Press to choose the required selection.
Press for 3s to confirm the setting.
4.2.3 Pulse Duration
Pulse Duration
Default: 200
Range: 60/ 100/ 200 mS
Press for 3s, the red part will flash. Press
to choose the required selection.

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Press for 3s to confirm the setting.
4.2.4 Demand Interval Time (DIT)
The screen will show the currently selected
integration time.
Default: 60
Range: 60/ 30/ 15/ 10/ 5/ OFF
Press for 3s, the current demand
interval time will flash. Press to choose
the required selection.
Press for 3s to confirm the setting.
4.2.5 Automatic Scroll Time Interval

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Automatic Scroll Time Interval
Default: 0 S
Option: 0 ~ 30S
Press for 3s, the current system type will
flash. Press to choose the required
setting.
Press for 3s to confirm.
4.2.6 Backlight Time (LP)
The screen will show the currently selected
backlight time.
Default: 60 minutes
Range: 120/ 60/ 30/ 20 / 10/ 5 / OFF
If it is seated as 5, the backlit will be off in 5
minutes.

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Press for 3s, the current backlight time
will flash. Press to choose the required
selection.
Press for 3s to confirm.
4.2.7 Clear Demand Information
This option is to reset the demand and resettable kWh/kVArh information.
From the Set-up menu, use buttons to
select the clear option.
Press for 3s. The CLR will flash.
Press again for 3s to confirm the
resetting.

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Press button eneter into the kWh/kVArh
reset page.
Press for 3s. The CLR will flash.
Press again for 3s to confirm the
resetting.
4.2.8 Password
The screen shows the current password.
Default: 1000
Range: 0001-9999
Press for 3s, the current digit will flash.
Press to choose the required digit,
press to move to the next digit.

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Press for 3s to confirm.
4.2.14 Checking Meter Information
This function allows to check meter setting information, also some of below information can be
set through another password ( refer to section 4.3).
1) Join Information
1
Activation Way
：
OTAA
DevEui: end-device identifier
****************(16 digits)
1-1
Activation Way：ABP
DevAddr: End-device address
********(8 digits)
2 Activation Way：OTAA
AppEui: application identifier
****************(16 digits)

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2-1
Activation Way
：
ABP
NwkSKey: Network session key
********************************(32
digits)
3
Activation Way：OTAA
AppKey: Application key
********************************(32
digits)
3-1
Activation Way：ABP
AppSKey: Application session key
********************************(32
digits)
2) Join Status
1
JOIN OK
Means the meter is connected to the
gateway successfully