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LoRaWAN Pulse Counter
VEGA SI-13
User manual
LoRaWAN Pulse Counter Vega SI-13 is used for reading of
values from metering instruments, such as water-, electricity
and heat meters via RS-485 and RS-232 interfaces or via
pulse inputs and further transmitting of this data to
LoRaWAN network.
Vega SI-13 can be used as a security by sending alarm signal
in case a specific contact pair is closed.
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Document Information
Title
LoRaWAN Pulse Counter VEGA SI-13
Document type
Manual – Translation from Russian
Document number
V02-SI13-01
Revision and date
08 - 04 May 2018
This document applies to the following products:
Product name
Type number
End devices
Vega SI-13-232
Vega SI-13-485
Revision History
Revision
Date
Name
Comments
01
23.03.2017
KEV
Document creation date
02
14.04.2017
KEV
Photos were added, minor edits
03
10.05.2017
KEV
New photos of the appearance
04
29.05.2017
PKP
A little changes at the communication protocol
05
21.06.2017
KEV
Technical characteristics were changed
06
05.09.2017
KEV
Part “Vega LoRaWAN Configurator” was added, and
some additions at the communication protocol
07
23.10.2017
KEV
Minor edits
08
04.05.2018
KEV
Edits concerning the field of application with meters
with pulse outputs, minor edits, new illustrations in
the “Operation” part
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CONTENTS
INTRODUCTION ............................................................................................................................................................................ 4
1 DESCRIPTION AND OPERATION ............................................................................................................................................ 5
2 SPECIFICATION .......................................................................................................................................................................... 7
3 OPERATION ................................................................................................................................................................................ 8
Contacts ...................................................................................................................................................................................... 8
Indication .................................................................................................................................................................................. 10
Initial startup ............................................................................................................................................................................. 11
Connecting via USB ................................................................................................................................................................ 12
4 VEGA LORAWAN CONFIGURATOR ...................................................................................................................................... 14
Interface of the application ................................................................................................................................................... 14
Connection to the device ...................................................................................................................................................... 14
“Device info” tab ...................................................................................................................................................................... 16
“LoRaWAN settings” tab ......................................................................................................................................................... 17
“Vega SI-13” tab ....................................................................................................................................................................... 22
5 COMMUNICATION PROTOCOL ........................................................................................................................................... 24
Vega SI-13 pulse counter transmits the following types of packets ............................................................................. 24
VEGA SI-13 pulse counter receives packets of the following types ............................................................................. 26
6 STORAGE AND TRANSPORTATION REQUIREMENTS ...................................................................................................... 28
7 CONTENT OF THE PACKAGE ................................................................................................................................................ 29
8 WARRANTY................................................................................................................................................................................ 30
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INTRODUCTION
This manual is designated for Vega SI-13-232 and Vega SI-13-485 pulse counters
(hereinafter – the counter) manufactured by Vega-Absolute LLC 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 for
electronic and electrical equipment.
The counter shall be installed and adjusted by qualified specialists in order
to ensure proper operation of the device
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1 DESCRIPTION AND OPERATION
Vega SI-13 has two design options, varying by data exchange interface:
Vega SI-13-232 with RS-232 interface;
Vega SI-13 -485 with RS-485 interface.
Vega SI-13 pulse counter is designed for counting of pulses incoming to 2 independent
inputs, further accumulating and transmitting of this information via the LoRaWAN protocol to
the gateway through wireless communication within 860-1000 MHz frequency band.
In addition, Vega SI-13 can be used as a security device - all inputs can be configured as
security inputs.
The pulse counter can be used for any utilities’ meters and industrial equipment with RS232 and RS-485 interfaces or pulse outputs, including water-, electricity-, and heat meters.
Vega SI-13 can work as a wireless modem or query some meters’ models.
Equipment with NAMUR pulse output is not supported
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 8…36 V external power supply.
The counter is configured via USB with special software.
The label on the board contains the information for registering of the device in the
LoRaWAN network:
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DevEUI,
DevAddr,
NwkSKey,
AppSKey,
AppEUI,
AppKey.
Moreover this information is repeated in the label-sticker on the housing cover in the
form of a QR code.
The pulse counter uses port 2 for data receiving and sending
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2 SPECIFICATION
Main
Double-contact digital inputs
up to 2
Maximum input frequency
200 Hz
Security inputs
up to 2
Interface
RS-232 or RS-485
USB-port
yes
Operating temperatures
-40…+85 °С
Built-in temperature sensor
yes
LoRaWAN
LoRaWAN class
C
Quantity of LoRaWAN channels
16
Frequency band
EU-868, RU-868, custom
Activation type
ABP or OTAA
Communication period
1, 6, 12 or 24 hours
Type of the LoRaWAN antenna
internal
Sensitivity
-138 dBm
Radio coverage in restrained urban conditions
up to 5 km
Radio coverage within line of sight
up to 15 km
Power output
up to 100 mW (configurable)
Power
External power supply
8…36 V
Case
Housing dimensions
95 х 50 х 45 mm
Ingress protection rating
IP65
Mounting
Clamp fastening to the support,
DIN-rail, wall-mounting
Vega SI-13 pulse counter is class C device (LoRaWAN classification) and has the
following features:
o Operation as LoRaWAN <-> RS-232 or LoRaWAN <-> RS-485 wireless modem
o Query of some meters’ models
o ADR support (Adaptive Data Rate)
o Sending of confirmed packets (configurable)
o Inputs can be switched to «security» mode for connection to external leakage
and safety sensors, etc.
o Communication in case of security inputs actuation
o Temperature measurement
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3 OPERATION
CONTACTS
The pulse counter has 10 contacts, see table below:
Contact
Description
-V
Power -
+V
Power +
B
RS-485 B
A
RS-485 A
Tx
RS-232 TX
Rx
RS-232 RX
,
Signal ground
In1, In2
Pulse inputs 1 and 2
Ground “ ” contact is used for connecting of RS-232 or RS-485; ground “ ” is used for
connecting of pulse inputs 1 and 2.
The counter pulse inputs are used to connect circuits with the following types of NO
contacts:
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- reed switch (Herkon);
- mechanical pushbutton;
- open-collector output.
Equipment with NAMUR pulse output is not supported
Any input can be configured for work in the "Security" mode with special software when
connected to the counter via USB. In this case, the device does not count pulses at the
"Security" input, but only monitors its closure. Should the "Security" input close, the device is
activated and sends an alarm message to the network.
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INDICATION
There is one red LED on the terminal board. The indication is only used when the device
is activated in the LoRaWAN network.
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
The device failed to connect to
the network and will not send
data regularly
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INITIAL STARTUP
VEGA SI-13 supports two activation methods in the LoRaWAN network - ABP and OTAA.
Select one of the methods using “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 band. 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 switches to the “Storage” mode.
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CONNECTING VIA U SB
The pulse counter can be adjusted 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 downloaded from iotvega.com. After
running the executable file VCP_V1.4.0_Setup.exe, the installer window will appear:
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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 is considered in the “Expert” mode.
INTERFACE OF THE APPLICATION
The "Vega LoRaWAN Configurator" application does not require the special installation.
When the executable file is launched, the window for working with the application appears.
The menu on the left allows you to switch between the “Simple” and “Expert” modes,
select the device model, connect to the device or disconnect from it, get and apply settings.
The application window contains three tabs – Device info, LoRaWAN settings and device
settings.
The language selection menu is in the upper right corner.
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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.
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 also
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.
Regional info (not displayed in the "Simple" mode) - shows the frequencies of the JOIN
channels and the second receiving window. These frequencies can be changed in the
"LoRaWAN Settings" tab when selecting a frequency plan.
Device info - the configurator reads information about the device model, its firmware
and automatically corrects the device's time when connected to it.
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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 occurs.
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.
“LORAWAN SETTINGS” TAB
The "LoRaWAN Settings" tab allows you to configure various parameters of the LoRa
network.
Region - allows you to select RU-868, EU-868 or specify a custom frequency band.
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The pulse counter supports the following frequency bands:
Frequency band
Channel
Frequency
Modulation
EU-868
1
868.1
MultiSF 125 kHz
2 868.3
MultiSF 125 kHz
3
868.5
MultiSF 125 kHz
RX2
869.525
SF12 125 kHz
RU-868
1 864.5
MultiSF 125 kHz
2
864.7
MultiSF 125 kHz
3 864.9
MultiSF 125 kHz
RX2
869.05
SF12 125 kHz
Custom
Set with «Vega LoRaWAN Configurator» application
In the EU_868 and RU_868 frequency bands, only 3 channels are active by default. The
device sends requests for connection to the network on this "join" channels. The remaining
channels that the device should use can be transferred 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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This frequency band allows you to set up to 16 channels, as well as the frequency and
speed of the second receiving window.
The first three channels and the second receiving window
parameters are mandatory. Without these parameters the custom
frequency band will be considered empty
Activation type – selecting ABP or OTAA device activation method.
Confirmed uplinks – when you choose "confirmed", the device will retry sending the
packet until it receives the server confirmation, or until the "Uplink number of transmission" is
over (see below).
ADR – this option activates the Adaptive Data Rate algorithm for automatic control of
the data transfer rate from the LoRaWAN network side. The higher the quality of the signal
received by the network, the higher the speed will be installed on the device. This option is
recommended only on permanently installed devices.
RX1 offset (not displayed in the "Simple" mode) – specifies the time between end of
packet transmission and first receiving window opening. The second receiving window always
opens after 1 second after the first.
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Join accept delay 1 (not displayed in the "Simple" mode) – sets the time that the device
will open the first receiving window to receive confirmation for the join request from the
LoRaWAN network. The second window always opens after 1 second after the first.
Uplink number of transmission (not displayed in the "Simple" mode) – if the "Confirmed
uplinks" function is disabled, the device will simply send each packet as many times as specified
in this setting. If "Confirmed uplinks" is enabled, the device will send packets until it receives a
confirmation or until it sends as many packets as specified in this setting.
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TX power (not displayed in the "Simple" mode) – the device RF transmitter power is
adjusted to this value when sending packets to the LoRaWAN network. This option can be
changed by the network server.
TX datarate (not displayed in the "Simple" mode) – the device transmission datarate at
which it will transfer packets to the LoRaWAN network. This speed can be changed by the
network server if the ADR algorithm is enabled.
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“VEGA SI-13” TAB
The “Vega SI-13” tab contains the settings of the connected device.
Current state – displays the current parameters of the device - the number of counted
pulses at the inputs and the temperature.
Input settings – allow you to change the operation of the pulse inputs from the
counting of pulses to the security mode and back. When transferring the input to the security
mode, the device will send an alarm packet to the network (See part 5, packet 2) whenever this
input is closed. The maximum possible frequency of sending alarm packets is one per 10
seconds.
Interface settings – RS-232 or RS-485 interface settings depending on the type of the
connected device.
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Data transmission settings – the transmission period which the packet with the current
readings is transmit (See part 5, packet 1).
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5 COMMUNICATION PROTOCOL
This part describes the SI-13 data exchange protocol with LoRaWAN network. SI-13 uses
the LoRaWAN port 2 for uplink and downlink messages. In fields consisting of several bytes, the
little endian byte order is used.
VEGA SI-13 PULSE COUNTER TRANSMITS THE FOLLOWING TYPES OF PACKETS
1. Packet with current readings, sent regularly
Size in bytes
Field description
1 byte
Packet type, this packet = 1
1 byte
Reserve
1 byte
Values of basic settings (bit field)
4 bytes
Reserve
1 byte
Temperature, °С
4 bytes
Input 1 reading (depending on the type – number of pulses or
status: 0 – open, 1 - closed)
4 bytes
Input 2 reading (depending on the type – number of pulses or
status: 0 – open, 1 - closed)
4 bytes
Reserve
4 bytes
Reserve
"Values of basic settings" bit field decoding
Bits
Field description
0 bit
Activation type: 0 - OTAA, 1 – ABP
1 bit
Query for packet confirmation: 0 – off, 1 – on
2,3 bits
Communication period:
|3==0 |2==0| - 1 hour
|3==0 |2==1| - 6 hours
|3==1 |2==0| - 12 hours
|3==1 |2==1 | - 24 hours
4 bits
First input type: 0 – pulse, 1 - security
5 bits
Second input type: 0 – pulse, 1 - security
6 bits
Third input type: 0 – pulse, 1 - security
7 bits
Fourth input type: 0 – pulse, 1 - security
2. «Alarm» packet sent in case of security input closure
Size in bytes
Field description
1 byte
Packet type, this packet = 2
1 byte
Reserve
1 byte
Values of basic settings (bit field)
1 byte
Input No, where the alarm is detected (1 or 2)
4 bytes
Input 1 reading (depending on the type – number of pulses or
status: 0 – open, 1 - closed)
4 bytes
Input 2 reading (depending on the type – number of pulses or
status: 0 – open, 1 - closed)
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4 bytes
Reserve
4 bytes
Reserve
3. Data packet from an external device, received via RS-232 or RS-485 interface
Size in bytes
Field description
1 byte
Packet type, this packet = 3
2 bytes
Total data size received via interface
1 byte
Data size in this packet
1 byte
Packet ordinal number
1 byte
Total quantity of packets
Array
Data
The LoRa data transfer technology limits the maximum packet size, depending on the
speed of packet transmission. If the readings log cannot be sent in one packet, it is divided into
several packets, which are sent in series until the entire requested log is sent. Records in the log
packet are arranged from the newest to the oldest.
4. Packet with current readings from connected meter Merkuriy 206, sent regularly or
on request
Size in bytes
Field description
1 byte
Packet type, this packet = 4
1 byte
Meter address
4 bytes
Result (1 – success, 0 – fail)
4 bytes
Reading rate 1
4 bytes
Reading rate 2
4 bytes
Reading rate 3
4 bytes
Reading rate 4
5. Packet with the confirmation of the execution of the command
Size in bytes
Описание поля
1 byte
Packet type, this packet = 5
1 bytes
Command code which must be confirm
1 byte
Result of the execution (1 – success, 0 - fail)
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VEGA SI-13 PULSE COUNTER RECEIVES PACKETS OF THE FOLLOWING TYP ES
1. Data sending to RS-232 or RS-485 interface
Size in bytes
Field description
1 byte
Packet type, this packet = 4
array
data
Upon receiving this packet, SI-13 will transfer the data contained therein to the RS-232 /
RS-485 interface (depending on the model). In the event that the external device connected via
the interface answers within the timeout specified in the SI-13 settings, the response will be
transmitted to the LoRaWAN network.
The LoRa data transfer technology limits the maximum packet size, depending on the
speed of the device operation. The packet size sent to the device shall not exceed 51 bytes.
If the larger packet is required, the external application is to query the network server if
the current speed of the device operation allows sending larger packets. The table below
shows the maximum packet sizes for different speeds
Data rate
Spread factor
Maximum packet size
DR0
SF12
51 bytes
DR1
SF11
51 bytes
DR2
SF10
51 bytes
DR3
SF9
115 bytes
DR4
SF8
222 bytes
DR5
SF7
222 bytes
2. Command to change the RS232 / RS485 interface settings
Size in bytes
Field description
1 byte
Packet type, this packet = 5
4 bytes
Interface speed. May be equal to values 300, 600, 1200, 2400,
4800, 9600, 19200, 38400, 57600, 115200
1 byte
Number of data bits, may be equal to 8 or 9
1 byte
Parity. 0 – none, 1 – even, 2 – odd
1 byte
Number of stop bits. May be equal to 1 or 2.
2 bytes
Response timeout. May be equal to 100, 500, 1000, 3000, 5000
When a packet of this type is received, the device will send a packet confirming the
execution of the command.
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3. Command for an extraordinary survey of the connected meter
Size in bytes
Field description
1 byte
Packet type, this packet = 6
1 byte
Meter type. May be equal to:
1 – Single-phase electric meter Mercury 20X series
4 bytes
Meter address
After receiving this command SI-13 will poll the meter with the specified address. Based
on the results of the survey, a packet will be sent with the current readings of the connected
meter.
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6 STORAGE AND TRANSPORTATION REQUIREMENTS
Vega SI-13 pulse counter shall be stored in the original packaging in heated room at
temperatures +5°С to +40°С and relative humidity less than 85%.
The counter shall be transported in covered freight compartments of all types at any
distance at temperatures -40°C to +85°C.
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7 CONTENT OF THE PACKAGE
The pulse counter is delivered complete with:
1. Vega SI-13-232 pulse counter – 1 pce.
Screw – 4 pce.
Factory certificate – 1 pce.
2. Vega SI-13-485 pulse counter – 1 pce.
Screw – 4 pce.
Factory certificate – 1 pce.
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8 WARRANTY
The warranty period for the device is 5 years from the date of sale.
The manufacturer is obligated to provide repair services or replace the failed device
during the entire warranty period.
The consumer undertakes to comply with the terms and conditions of transportation,
storage and operation specified in this user manual.
Warranty does not apply to:
- the device with mechanical, electrical and / or other damages and defects caused by
violation of the transportation, storage and operation requirements;
- the device with traces of repair performed not by the manufacturer's service center;
- the device with traces of oxidation or other signs of liquids leaking inside the device.
In the event of a warranty claim, contact the service center:
113/1, Kirova Str., Novosibirsk, 630008, Russia.
Tel.: +7 (383) 206-41-35.
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