Vega Absolute VEGA SI-21 User manual
www.vega-absolute.ru
Pulse Counter
VEGA SI-21
User manual
Pulse Counter Vega SI-21 is used for reading of values from
metering instruments, such as water- and electricity meters
and further transmitting of this data to LoRaWAN network.
Vega SI-21 can be used as a security device by sending alarm
signal in case a specific contact pair is closed.
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Document Information
Title Pulse Counter Vega SI-21
Document type Manual – Translation from Russian
Document number V02-SI21-01
Revision and date 11 - 23 October 2020
This document applies to the following products:
Product name
Type number
End devices Vega SI-21
Revision History
Revision Date Name Comments
01 12.09.2017 KEV Document creation date
02 11.01.2018 KEV Ingress protection rating corrected
03 15.02.2018 TII Minor changes at the exchange protocol
04 04.05.2018 KEV Edits concerning the field of application with meters with
pulse outputs
05 24.07.2018 KEV Added frequency plans, changes in the communication
protocol, in technical characteristics
06 28.08.2018 PKP
KEV
Protocol changed. Timestamp added to alarm packet.
Pulse input scheme is added.
07 22.01.2019 KEV
“Marking” part added, device AppEui added in specification,
setting “by the air” description, communication protocol
changed
08 24.01.2019 KEV Inaccuracy in communication protocol fixed – packet
type for packets with settings and request of settings
09 15.01.2020 KEV AppEui default number is changed, there are new
packets in the communication protocol
10 15.09.2020 KEV
AppEui devices have been removed from specification,
changes in functionality, added temperature thresholds,
changes in communication protocol
11 23.10.2020 KEV We add version number for the communication protocol
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CONTENTS
INTRODUCTION............................................................................................................................................................................4
1 DESCRIPTION AND OPERATION ............................................................................................................................................5
Device description ....................................................................................................................................................................5
Comunication and data collection algorithm .....................................................................................................................6
Functional ...................................................................................................................................................................................6
Marking........................................................................................................................................................................................7
2 SPECIFICATION ..........................................................................................................................................................................8
3 OPERATION.................................................................................................................................................................................9
Contacts ......................................................................................................................................................................................9
Indication ..................................................................................................................................................................................11
Initial Startup ............................................................................................................................................................................12
Connecting via USB ................................................................................................................................................................13
4 VEGA LORAWAN CONFIGURATOR......................................................................................................................................15
Interface of the application ...................................................................................................................................................15
Connection to the device ......................................................................................................................................................16
“Device info” tab ......................................................................................................................................................................18
“LoRaWAN settings” tab .........................................................................................................................................................20
“Vega SI-21” tab .......................................................................................................................................................................24
5 COMMUNICATION PROTOCOL – VERSION 2.0 ...............................................................................................................26
Vega SI-21 pulse counter transmits the following types of packets.............................................................................26
VEGA SI-21 pulse counter receives packets of the following types .............................................................................28
6 STORAGE AND TRANSPORTATION REQUIREMENTS ......................................................................................................30
7 CONTENT OF THE PACKAGE ................................................................................................................................................31
8 WARRANTY................................................................................................................................................................................32
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INTRODUCTION
This manual is designated for Vega SI-21 pulse counter (hereinafter – the counter)
manufactured by Vega-Absolute OOO and provides information on powering and activation
procedure, control commands and functions of the counter.
This manual is targeted at specialists familiar with installation work fundamentals of
electronic and electrical equipment.
To provide the stable radio between the gateway and the end device it is
recommend avoiding the device installation in the places which are
barriers for the radio signal getting through like a reinforced floors and
walls, a basement, an underground facilities and wells, a metal case etc.
The necessary stage for the network deploying including a big quantity
of end devices is a radio planning work with nature experiments
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1 DESCRIPTION AND OPERATION
DEVICE DESCRIPTION
Vega SI-21 pulse counter is designed for counting of pulses incoming to 4 independent
inputs, further accumulating and transmitting of this information in the LoRaWAN network.
In addition, Vega SI-21 can be used as a security device - pulse inputs can be
configured as security inputs.
The pulse counter can check the specified temperature range. When configuring the
device, you can set the low and high thresholds for permissible temperature values. When the
temperature value goes beyond the range, the modem starts an extraordinary
communication session. The data collection period for operation within the temperature
range and outside is configurable separately.
The pulse counter can be used for any utilities’ meters and industrial equipment with
pulse output of herkon type or open-drain type contact.
Equipment with NAMUR pulse output is not supported
Vega SI-21 has ability to connect an external temperature sensor for taking temperature
readings from objects which require such control.
De-bouncing logics with 5 msec time constant is integrated in the pulse counter. The
pulse counting is carried out for frequencies up to 200 Hz.
The counter is powered by a 3400 mAh built-in battery.
The device is powered by a non-rechargeable lithium-thionyl chloride
(LiSOCl2) battery
Attempts to charge the battery may result in fire
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COMUNICATION AND DATA COLLECTION ALGORITHM
The readings collecting from the meter with a configurable period from 5 minutes to
24 hours. The readings stored in the device memory and transmitting during the next
communication session with the LoRaWAN network.
The adjustable data transfer period can be from 5 minutes to 24 hours. Data
transferring in random point in time during set period. At the next communication session, the
device starts sending accumulated packets with readings, from the earliest to the latest.
If the measured temperature values go out the specified temperature range, the data
transmission period remains unchanged, if the "Immediately send data when temperature is
out of range" parameter is not active. If this parameter is active, then within two minutes after
the temperature value goes out the specified range, a message with an alarm flag will be
generated and transmitted. Each next generated message according to the data collection
period will also be transmitted immediately until the temperature value returns into the
specified range.
It is also possible to separately configure the data collection period for the case when
the measured temperature values go out the specified temperature range.
With the "Confirmed uplinks" option turned on, the device will send the next packet
only after receiving a confirmation of the delivery of the previous one. If such confirmation
has not received after the fulfilled in the settings uplink number of transmissions, device
completes the communication session until the next one according to the schedule. In this
case, the device continues to collect data according to the data collection period and store it
in memory. Non-transmitted packets remain in the device memory until the next
communication session.
With the "Confirmed uplinks" option turned off, the device just sends all accumulated
packets to the network in order from the earliest to the latest. There are no checks of package
delivery in this mode. There are no non-transmitted messages in the device memory.
The internal clock is set automatically when device connected to the "Vega LoRaWAN
Configurator" via USB, also adjustable via LoRaWAN.
FUNCTIONAL
Vega SI-21 pulse counter is A class device (LoRaWAN classification) and has the
following features:
oADR support (Adaptive Data Rate)
oSending of confirmed packets (configurable)
oTwo operating modes: "Active" and "Storage"
oInputs can be switched to «security» mode for connection to external leakage
and safety sensors, etc.
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oAbility to connect an external temperature sensor
oUnscheduled sending of an alarm packet when the temperature goes out the
specified range
oThe ability to set a shortened data collection interval for the case when the
measured temperature values go out the specified temperature range
oTime referencing of readings by internal clock
oCommunication in case of security inputs actuation
oCharge measuring of the built-in battery (%)
MARKING
Device marked with sticker that contain the next information:
oDevice model;
oDevEUI;
oMonth and year of manufacture;
oQR-code containing DevEUI for automatized count.
Sticker located in three places – on device case, in factory certificate and on the packing
box.
Besides, there is an additional sticker located on the packing box and contains:
oInformation about firmware version;
oQR-code containing DevEUI and keys for device registration in network via
OTAA method.
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2 SPECIFICATION
Main
Double-contact digital inputs up to 4
Maximum input frequency 200 Hz
Security inputs up to 4
USB-port mini-USB, type B
Operating temperatures -40…+85 °С
External temperature sensor type B57861-S 103-F40 10 kOhm
Accuracy of temperature measurement
±
0.5
º
С in range -10…+40
º
С
±1 ºС in range -55…+100 ºС
LoRaWAN
LoRaWAN class A
Quantity of LoRaWAN channels
16
Frequency plan
RU868, EU868, IN865, AS923, AU915,
KR920, US915, KZ865, custom (EU868
based)
Activation type ABP or OTAA
Communication period 5, 15, 30 minutes, 1, 6, 12 or 24 hours
Data collection period 5, 15, 30 minutes, 1, 6, 12 or 24 hours
Memory amount for storing packets 200 packets
Type of the LoRaWAN antenna external
Sensitivity -138 dBm
Radio coverage in restrained urban conditions up to 5 km
Radio coverage within line of sight up to 15 km
Transmitter power by default 25 mW (configurable)
Maximum transmitter power 100 mW
Power
Built-in battery
3400 mAh
Warranty number of packets sent by the device, not
less
80 000
Case
Housing dimensions 78 х 58 х 30 mm
Ingress protection rating IP67
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3 OPERATION
CONTACTS
The pulse counter has 4 pairs of contacts and is able to connect circuits with the
following types of NO contacts:
- reed switch;
- mechanical pushbutton;
- open-drain output.
Equipment with NAMUR pulse output is not supported
Polarity effects only "open collector" circuits.
Pulse inputs can be configured for work in the "Security" mode via the “Vega LoRaWAN
Configurator” application. In this mode, the device does not count pulses at the "Security"
input, but only monitors its status. Should the "Security" input trigger, the device is activated
and sends an alarm message to the network.
When connecting a radio modem to external devices, consider the internal circuitry of
its pulse inputs shown below.
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INDICATION
There is one red LED on the board. The indication is only used when the device is
activated in the LoRaWAN network and when the operating modes are changed.
LED signal
Meaning
Series of short flashings Linking to the network
One long flashing
The device connected to the network
and is in active mode
Three long flashings
Linking to the network is unsuccessful
or the device switched to the «Storage»
mode
In case of connection attempt fail, the device will continue to
accumulate data and will attempt to connect to the network every 6
hours
LED on the board
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INITIAL STARTUP
Vega SI-21 pulse counter is constantly on but can operate in a special "Storage" mode,
designed for storage and transportation. The device does not regularly transmit data to the
network in this mode. Before use switch the counter from the «Storage» mode.
Vega SI-21 supports two activation methods in the LoRaWAN network - ABP and OTAA.
Select one of the methods using the «Vega LoRaWAN Configurator» application (see part 4).
1. ABP.After pressing the start button, the device immediately starts working in the
"Active" mode.
2. OTAA.After pressing the start button, the device makes three attempts to connect to
the network within the set frequency plan. After the activation in the LoRaWAN network is
confirmed, the device sends a signal (LED flashing for 3 seconds) and switches to the "Active"
mode. If all attempts fail, the counter will continue to accumulate data and will attempt to
connect to the network every 6 hours.
Hold the start button pressed (min. 5 seconds) to switch the device from the "Active"
mode back to the "Storage" mode.
When switching to the "Storage" mode, all readings from the pulse inputs
accumulated in the device memory are reset
Push start button
on the board
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CONNECTING VIA USB
The pulse counter adjusting with the "Vega LoRaWAN Configurator" application (See
part 4).
Before connecting the device to the computer for the first time, you must install the
driver for the COM port stsw-stm32102, which can be downloading from iotvega.com. After
running the executable file VCP_V1.4.0_Setup.exe, the installer window will appear:
USB port on the
board
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In this window, you need to click Next, then Install, and then the installation will begin.
When the installation is completed successfully, the following screen appears:
After pressing Finish the driver is ready for operation, - it is possible to connect the
pulse counter via USB.
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4 VEGA LORAWAN CONFIGURATOR
The "Vega LoRaWAN Configurator" application (hereinafter referred to as the
configurator) is intended for setting up the device via USB.
The configurator has two modes of operation - "Simple" and "Expert". In the "Simple"
mode, only basic settings are available. In the "Expert" mode, the basic settings, advanced
settings and the ability to check the coverage area of the signal from the gateways are
available. Next, the work of the application considering in the “Expert” mode.
INTERFACE OF THE APPLICATION
The "Vega LoRaWAN Configurator" application does not require the special installation.
When the executable file launching, the window for working with the application appears.
The left side menu allows you to switch between the “Simple” and “Expert” operating
modes, select a device model, connect to, or disconnect from a device.
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The buttons "Export settings" and "Import settings" allow you to save a set of settings to
a file and then load them from a file.
The buttons "Get settings" and "Apply settings" are needed to display the current device
settings in the program and to save the changed settings in the device memory, respectively.
The application window contains three tabs – Device info, LoRaWAN settings and
device settings.
The language selection menu is in the upper right corner.
CONNECTION TO THE DEVICE
For the connection to the device, perform the following steps:
1. Connect the USB cable to the device.
2. Start the "Vega LoRaWAN Configurator" application.
3. Click the "Connect" button in the menu on the left.
The application automatically recognizes the type of device, and the device selection
menu becomes inactive.
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To read the settings from the device, you need to click the "Get settings" button, until
this point the application will display the default settings or from the last connected device.
After making the necessary changes to the settings, you should click the "Apply
settings" button and only then disconnect from the device with the "Disconnect" button.
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“DEVICE INFO” TAB
The "Device info" tab displays information about the device, its current status, and the
data needed to register the device in the LoRaWAN network.
ABP info - displays the data necessary to register the device in the LoRaWAN network
with ABP method (Activation By Personalization).
OTAA info - the data required to register the device in the LoRaWAN network with
OTAA method (Over The Air Activation) is displayed.
Key management (not displayed in the "Simple" mode) - allows you to change the
factory keys to register the device on the network and reset the keys back to the factory
settings.
Device info - the configurator reads information about the device model, its firmware
and protocol version, also automatically corrects the device's time when connected to it.
Update firmware - allows you to select the firmware file from your computer's hard
drive and load it into the device. The device will automatically disconnect from the
configurator when the download is complete. The current version of the device firmware can
be downloaded from iotvega.com.
Network info - shows whether the device is connected to the LoRaWAN network and
its network address.
Join network button - launch the LoRaWAN network connection procedure with the
previously selected ABP or OTAA method. If the device is already connected to the network,
reconnection procedure will occur.
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Link check (not displayed in the "Simple" mode) - when pressed, the device sends a
special signal to the LoRaWAN network, in response to which the network informs it of the
number of gateways that received this signal and the signal quality. This button only works
when the device is connected to the network.
Device output (not displayed in the "Simple" mode) - monitoring the device status, all
events in real time are displayed.
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“LORAWAN SETTINGS” TAB
The "LoRaWAN Settings" tab allows you to configure various parameters of the LoRa
network.
Region - allows you to select one of installed frequency plans or specify a custom
frequency plan. Custom frequency plan is EU-868 based.
In the device frequency plan, only those channels are active by default, on which
sending requests for connection to the network (join channels). The remaining channels (that
the device should use) can be transferring by the LoRaWAN network server during the device
activation procedure (only OTAA).
If you select "Custom" in the "Region" field, you must manually specify the frequencies
that the device will use. To do this, click the "Edit" button, the channel frequency editing
window will appear:
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