Eastron SDM230-LoRaWAN Manual de usuario

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

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

Tabla de contenidos

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