Vega SI-12 User manual

www.vega-absolute.ru
LORAWAN PULSE COUNTER
VEGA SI-12
RELAY
USER MANUAL
DOCUMENT REVISION
01

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CONTENTS
INTRODUCTION............................................................................................................................................................................4
1 DESCRIPTION AND OPERATION ............................................................................................................................................5
Device Description ....................................................................................................................................................................5
Comunication and data collection algorithm .....................................................................................................................5
Functional ...................................................................................................................................................................................7
Marking ........................................................................................................................................................................................7
2 SPECIFICATION ..........................................................................................................................................................................8
Device specification..................................................................................................................................................................8
Default device settingS.............................................................................................................................................................9
3 OPERATION...............................................................................................................................................................................10
Device appearance..................................................................................................................................................................10
Contacts description...............................................................................................................................................................11
Relay outputs operation.........................................................................................................................................................13
Led indications .........................................................................................................................................................................15
Mounting recomendations....................................................................................................................................................16
4 COMMUNICATION PROTOCOL ...........................................................................................................................................18
Vega SI-12 RELAY pulse counter transmits the following types of packets ................................................................18
1. Packet with current readings .....................................................................................................................................18
2. “Alarm” packet ..............................................................................................................................................................19
3. Output state information packet ...............................................................................................................................19
4. Packet with time correction request.........................................................................................................................20
5. Settings packet..............................................................................................................................................................20
Vega SI-12 RELAY pulse counter receives packets of the followng types...................................................................21
1. Real-time clock adjustment........................................................................................................................................21
2. Output on command ..................................................................................................................................................21
The control of relay outputs is described in detail in the section "Operation of relay outputs".............................21
3. Output off command ..................................................................................................................................................21
4. Packet with request of settings..................................................................................................................................21
5. Packet with settings .....................................................................................................................................................22
5 STORAGE AND TRANSPORTATION REQUIREMENTS ......................................................................................................24

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6 CONTENT OF THE PACKAGE ................................................................................................................................................ 25
7 WARRANTY................................................................................................................................................................................ 26

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INTRODUCTION
This manual is designated for Vega SI-12 RELAY 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 for
electronic and electrical equipment.
Vega-Absolute OOO reserves the right to make changes to the manual related to the
improvement of equipment and software, as well as to eliminate typos and inaccuracies,
without prior notice.

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1 DESCRIPTION AND OPERATION
DEVICE DESCRIPTION
Vega SI-12 RELAY pulse counter is designed for counting of pulses incoming to 4
independent inputs, further accumulating and transmitting of this information to the
LoRaWAN®network, and for controlling low-power actuators by means of built-in relays.
In addition, Vega SI-12 RELAY can be used as a security device - all inputs can be
configured as security inputs.
The counter has two relay outputs and can be used as a control device.
The pulse counter can be used for any utilities’ meters and industrial equipment with
pulse output of dry reed switch type or open-drain type.
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 can be powered by the 8-35V and output current not less than 150 mA
external power supply.
COMUNICATION AND DATA COLLECTION ALGORITHM
Vega SI-12 RELAY operates in modes listed below:
“Storage” – is a mode for storing and transporting. In this mode the device does not
communicate regularly with the network.
“Active” – is a main mode of device operation.
Before start using you need to switch the device out of “Storage” mode.
Vega SI-12 RELAY supports two activation methods in the LoRaWAN®network - ABP and
OTAA.
ABP method. After pressing the start button, the device immediately starts working in the
"Active" mode.
OTAA method. 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 5 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.

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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
The device forms the data packet with current state with a configurable period from 5
minutes to 24 hours. The packets stored in the device memory and transmitting during the next
communication session with the LoRaWAN®network.
Examples
If the data collection period is set to 24 hours the packet is formed at 00.00 on the
internal clock of the device
If the data collection period is 12 hours then at 00.00 and at 12.00, and so on.
The adjustable data transfer period can be from 5 minutes to 24 hours. When beginning
of communication session, the device starts sending packets with readings from the earliest
packet. The time of data transmitting cannot be specified, it’s defined in random way for every
device in chosen period of transmission from the moment of connection to the network.
Example
Transmission period is 30 minutes, and device was started at 16:40 by the internal device
clock. In random way the device calculate data transmitting time and set it at 16:41 in the half-
hour period from 16:40 to 17:10. Thus, packets from this device will transmit at 16:41, at 17:11,
at 17:41, at 18:11 and so on every 30 minutes by the internal device clock.
The internal clock is set automatically when you connect to the device through USB, also
can be adjust via LoRaWAN® network.

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FUNCTIONAL
Vega SI-12 RELAY pulse counter works as a device of class C (LoRaWAN®classification)
and has the following features:
ADR support (Adaptive Data Rate)
Sending of confirmed packets (configurable)
Simultaneous readings from 4 independent inputs
Ability to control actuators using built-in relays
Two operating modes: "Active" and "Storage”
Inputs switching to the “Security” mode for connection of leakage, safety, and
other external sensors
Saving non-transmitted packets in device memory
Time referencing readings by internal clock
Communication in case of security inputs actuation
Temperature measurement
MARKING
Device marked with sticker that contain the next information:
Device model;
DevEUI;
Month and year of manufacture;
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:
Information about firmware version;
QR code containing activation keys for a device in the LoRaWAN®network and
other indicators.

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2 SPECIFICATION
DEVICE SPECIFICATION
MAIN
Double-contact digital inputs up to 4
Maximum input frequency 200 Hz
Security inputs up to 4
Relay outputs 2
USB-port mini-USB, type B
Operating temperatures -40…+85 °С
Built-in temperature sensor yes
Maximum switching current of the relay up to 2 A
Maximum switching voltage of the relay 250 VAC / 220VDC
Maximum switching power 62.5VA / 30W
LORAWAN®
LoRaWAN®class С
Quantity of LoRaWAN
®
channels 16
Frequency plans supported by default RU868, EU868, KZ865
Frequency plans available as order option Any regional according to “LoRaWAN 1.1
Regional Parameter”
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 internal
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)
POWER
External power supply 8 – 35 V, direct current
Power supply output current no less than 150 mA
CASE
Housing dimensions, no more than 90 х 49 х 46 mm
Ingress protection rating IP65
Mounting Clamp fastening to the support, DIN-rail,
wall-mounting

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DEFAULT DEVICE SETTINGS
PARAMETER
VALUE
Frequency plan RU868
Activation type OTAA
Adaptive Data Rate (ADR) ON
Confirmed Uplinks OFF
Rx 1 Delay 1 second
Join Accept Delay 5 seconds
Uplink number of transmissions пакета 1
Data rate DR0
Power 14 dBm
Communication period 24 hours
Data collection period 24 hours
Time zone UTC +00:00
Inputs operate in mode pulse
For changing the device settings, you need to connect to it with “Vega LoRaWAN
Configurator” application. You can download app on the iotvega.com site in SOFT section as
well as User Manual for configurator. Go to the app page.

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3 OPERATION
DEVICE APPEARANCE
Vega SI-12 RELAY is represented in small plastic case which has four screws and
mounting for DIN-rail.
1 – screw ø 2 mm х
2 – DIN-rail with mounting holes ø 3 mm
3 – silicone gasket without through holes, ensuring the protection rating of the device
case IP65.
All of elements for manage and indication as well as connecting contacts are placed on
the board inside the case.
1 2
3
4
5
6
7
4 – launch button
5 – LED indicator
6 – contacts
7 – USB-port

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CONTACTS DESCRIPTION
When connecting a radio modem to external devices, consider the internal circuitry of
its pulse inputs shown below.
The pulse counter has 10 contacts, see table below (in order from left to right):
CONTACT
DESCRIPTION
-V
Power -
+V
Power +
IN1, IN2, IN3, IN4
Pulse inputs
Ʇ,Ʇ
Signal ground
out 1
out 2
Relay outputs
Ground contacts (Ʇ,Ʇ) are used for connection of pulse inputs IN1, IN2, IN3 and IN4.
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 pulse inputs of the meter allow you to connect circuits with the following types of
closing contacts:
reed switch;
mechanical pushbutton;

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open-collector output.
Equipment with NAMUR pulse output is not supported
To reset all readings from the pulse inputs accumulated in the device memory you need
to switch the device to the "Storage" mode by holding the start button pressed
(min. 5 seconds).
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.
Outputs 1 and 2 are designed to control the state of an external connected device by
supplying forward and reverse current for a short time. The maximum permissible load on the
outputs is 2A.
On a command from the LoRaWAN®network, it is possible to change the state of outputs
1 and 2. See packet 5 in the communication protocol.

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RELAY OUTPUTS OPERATION
Relay outputs can be in three states:
1) OUT_1 and OUT_2 connected to the “Ground”. This is the initial state of the
outputs after switching on the device.
2) Output OUT_1 connected to supply voltage +VPWR, OUT_2 connected to
the “Ground”.
3) Output OUT_2 connected to supply voltage +VPWR, OUT_1 connected to
the “Ground”.
Here +VPWR is the device power voltage.
In order to switch the device to state 2, it is required to send a command to LoRaWAN®
port 2:
0x03 0x01 0xXX, where XX – time in seconds for which you want to close the output. If
XX = 0, the output is closed forever.
In order to switch the device to state 3, it is required to send a command to LoRaWAN®
port 2:
0x03 0x02 0xXX, where XX – time in seconds for which you want to close the output. If
XX = 0, the output is closed forever.
To switch the outputs OUT_1 and OUT_2 to their initial state (the outputs are connected
to the “Ground”), the following commands are provided:

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To switch the OUT_1 output back to the “Ground”, it is required to send the command
to LoRaWAN®port 2: 0x04 0x01
To switch the OUT_2 output back to the “Ground”, it is required to send the command
to LoRaWAN®port 2: 0x04 0x02
For a clearer presentation, the commands can be summarized in a table. All commands
are sent to LoRaWAN®port 2.
Command
OUT_1 state
OUT_1 state
The device is powered Connected to the “Ground” Connected to the “Ground”
0x03 0x01 0x00 Connected to device power Connected to the “Ground”
0x04 0x01 Connected to the “Ground” Connected to the “Ground”
0x03 0x02 0x00
Connected to the “Ground”
Connected to device power
0x04 0x02
Connected to the “Ground”
Connected to the “Ground”

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LED INDICATIONS
There is one red LED on the board. The indication is only used when the device is
activating in the LoRaWAN®network and when the operating modes are changing.
LED SIGNAL
MEANING
Short flashings Linking to the network in progress
One long flashing
during 5 sec
The device has been successfully
connected to the network and is in
active mode
Three flashings each by
1 sec
Linking to the network has been failed
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 location on the
board

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MOUNTING RECOMENDATIONS
To provide the stable radio between the gateway and the end device is recommended
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.
Before starting mounting work, you must make sure that the latest
firmware version is installed on the equipment
For mounting you will need:
awl;
wire stripper;
laptop.
Step by step mounting be like:
1. Setting the devices and connecting them to the network are usually carried out in the
office (see Network Deployment Manual).
2. Determination of suitable places for mounting at the object with a network tester.
3. De-energizing the connected equipment, metering devices, etc.
4. Making holes in the silicone gasket for wires - strictly according to the number of
wires. It must be remembered that the wire must be of circular cross-section and no
more than 3 mm in diameter.
When removing the sealant, as well as when installing wires of a different
diameter or cross-section, device performance may deteriorate until
failure due to moisture entering the case
5. Connecting all necessary wires to the SI-12 RELAY contacts.
6. Device launching – switching to the “Active” mode and registration in the network.

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7. By the laptop you can make sure that the device successfully sends the data.
8. Before assembling the device, it is necessary to reset the pulses accumulated during
testing and connection by switching the device to the "Storage" mode by pressing
the button for 5 seconds.
9. Start the device by pressing launch button.
10. Assembling the device.
11. DIN-rail mounting or another available way to mount the device on the object.
Location of the
launch button on
the board

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4 COMMUNICATION PROTOCOL
This part describes the SI-12 RELAY communication protocol with LoRaWAN®network.
In fields consisting of several bytes, the little endian byte order is used
VEGA SI-12 RELAY PULSE COUNTER TRANSMITS THE FOLLOWING TYPES OF PACKETS
1. Packet with current readings
Передается регулярно на LoRaWAN®порт 2
Size in
bytes
Field description
Data type
1 byte Packet type, this packet == 1 uint8
1 byte Reserve, value always 0x64 uint8
1 byte Values of basic settings (bit field) uint8
4 bytes
Reading time for values in this packet (unixtime UTC)
uint32
1 byte Temperature, °С int8
4 bytes
Input 1 reading (depending on the type – number of pulses
or status: 0 – open, 1 - closed)
uint32
4 bytes Input 2 reading (depending on the type – number of pulses
or status: 0 – open, 1 - closed)
uint32
4 bytes Input 3 reading (depending on the type – number of pulses
or status: 0 – open, 1 - closed)
uint32
4 bytes
Input 4 reading (depending on the type – number of pulses
or status: 0 – open, 1 - closed)
uint32
The counter has internal clock and calendar; time and date are factory set. When sending
a packet with the current readings, the device uses the data taken at the nearest time, which is
multiple to the interval according to data collection period:
1 hour period: the readings of the beginning of the current hour are sent;
6 hours period: 00:00, 06:00, 12:00, 18:00 readings are sent;
12 hours period: 00:00, 12:00 readings are sent;
24 hours period: the readings of 00:00 of the current day are sent.

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"Values of basic settings" bit field decoding
Bit
Meaning
0 bit Activation type: 0 - OTAA, 1 – ABP
1, 2, 3 bits Communication period:
|1 == 0|2==0|3==0| - 5 minutes
|1 == 1|2==0|3==0| - 15 minutes
|1 == 0|2==1|3==0|- 30 minutes
|1 == 1|2==1 |3==0|- 1 hour
|1 == 0|2==0|3==1|- 6 hours
|1 == 1|2==0|3==1|- 12 hours
|1 == 0|2==1|3==1|- 24 hours
4 bit
First input type: 0 – pulse, 1 - security
5 bit
Second input type: 0 – pulse, 1 - security
6 bit Third input type: 0 – pulse, 1 - security
7 bit Fourth input type: 0 – pulse, 1 - security
2. “Alarm” packet
Packet sent in case of security input closure on LoRaWAN®port 2
Size in bytes
Field description
Data type
1 byte
Packet type, this packet == 2
uint8
1 byte
Battery charge, %
uint8
1 byte
Values of basic settings (bit field)
uint8
1 byte
Input No, where the alarm is detected (1…4)
uint8
4 bytes Time of the modem at a moment of the packet transmission
(unixtime UTC)
uint32
4 bytes
Input 1 reading (depending on the type – number of pulses
or status: 0 – open, 1 - closed)
uint32
4 bytes Input 2 reading (depending on the type – number of pulses
or status: 0 – open, 1 - closed)
uint32
4 bytes Input 3 reading (depending on the type – number of pulses
or status: 0 – open, 1 - closed)
uint32
4 bytes
Input 4 reading (depending on the type – number of pulses
or status: 0 – open, 1 - closed)
uint32
When sending alarm packet, the device uses the data taken at moment of alarm
triggers.
3. Output state information packet
Sent whenever each output is turned on to LoRaWAN®port 2
Size in
bytes
Field description
Data type
1 byte Packet type, this packet == 5 uint8
1 byte
Reserve, value always 0x64
uint8
1 byte
Values of basic settings (bit field)
uint8

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1 byte Output number (1-2) uint8
1 byte New output state (0 – off, 1 - on) uint8
4 bytes Generation packet time (unixtime UTC) uint32
4. Packet with time correction request
Sent every seven days on LoRaWAN®port 4
Size in bytes
Field description
Data type
1 byte
Packet type, this packet == 255
uint8
4 bytes Time of the modem at a moment of the packet transmission
(unixtime UTC)
uint32
After receiving this type of package, the application can send to modem the packet with time
correction.
5. Settings packet
Transmitting on LoRaWAN®port 3 when settings request command received, or device
connected to the network
Size in bytes
Field description
Data type
1 byte Packet type, this packet == 0 uint8
2 bytes ID of parameter uint16
1 byte Data length (len) uint8
len bytes Parameter value -----
2 bytes ID of parameter uint16
1 byte Data length (len) uint8
len byte Parameter value -----
… … …
2 bytes ID of parameter uint16
1 byte Data length (len) uint8
len bytes Parameter value -----