Vega Absolute VEGA SI-11 User manual
www.vega-absolute.ru
PULSE COUNTER
VEGA SI-11
USER MANUAL
DOCUMENT REVISION
FIRMWARE VERSION
25 2.4
Vega SI-11 / User Manual
2 Revision 25 - 24 June 2021
CONTENTS
INTRODUCTION......................................................................................................................................................................... 3
1 DESCRIPTION AND OPERATION ......................................................................................................................................... 4
Device description ................................................................................................................................................................. 4
Comunication and data collection algorithm .................................................................................................................. 4
Functional ................................................................................................................................................................................ 5
Marking..................................................................................................................................................................................... 6
2 SPECIFICATION ....................................................................................................................................................................... 7
Device Specification .............................................................................................................................................................. 7
Default Device Settings ......................................................................................................................................................... 8
3 OPERATION.............................................................................................................................................................................. 9
Device Appearance ................................................................................................................................................................ 9
Contacts Description ........................................................................................................................................................... 10
LED Indications ..................................................................................................................................................................... 12
Mounting Recomendations................................................................................................................................................ 13
4 COMMUNICATION PROTOCOL ........................................................................................................................................ 15
Vega SI-11 pulse counter transmits the following types of packets .......................................................................... 15
VEGA SI-11 pulse counter receives packets of the following types........................................................................... 18
5 STORAGE AND TRANSPORTATION REQUIREMENTS ................................................................................................... 20
6 CONTENT OF THE PACKAGE ............................................................................................................................................. 21
7 WARRANTY ............................................................................................................................................................................. 22
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INTRODUCTION
This manual is designated for Vega SI-11 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.
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-11 pulse counter is designed for counting of pulses incoming to 4 independent
inputs, further accumulating and transmitting of this information to the LoRaWAN®network.
In addition, Vega SI-11 can be used as a security device - anyone of four inputs can be
configured as security input.
The pulse counter can be used for any utilities’ meters and industrial equipment with
pulse output of herkon type or open-drain type.
Equipment with NAMUR pulse output is not supported
The counter is powered by a replaceable SAFT LS 17500 battery with capacity 3600 mAh.
The device is powered by a non-rechargeable lithium-thionyl chloride
(LiSOCl2) battery
Attempts to charge the battery may result in fire
COMUNICATION AND DATA COLLECTION ALGORITHM
Vega SI-11 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-11 supports two activation methods in the LoRaWAN®network - ABP and OTAA.
Select one of the methods via the “Vega LoRaWAN Configurator” application (see “User Manual”
on the program).
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.
The packet is formed at 00.00 on the internal clock of the device if the data collection
period is set to 24 hours, at 00.00 and at 12.00, if the period is 12 hours and so on.
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.
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
been 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. After communication session there are no non-transmitted messages in
the device memory.
The internal clock is set automatically when you connect to the device through USB,
also can be adjust via LoRaWAN®network.
FUNCTIONAL
Vega SI-11 pulse counter is A class device (LoRaWAN®classification) and has the
following features:
ADR support (Adaptive Data Rate)
Sending of confirmed packets
Two operating modes: "Active" and "Storage"
Inputs can be switched to “security” mode for connection to external leakage
and safety sensors, etc.
Queue for sending packets if delivery fails
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Time referencing of readings by internal clock
Communication in case of security inputs actuation
Temperature measurement
Charge measuring of the built-in battery (%)
MARKING
Device marked with sticker that contain the next information:
Device name;
DevEUI;
Release Date.
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 which contains:
Information about firmware version;
QR-code containing DevEUI and keys for device registration in network via
OTAA method.
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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
USB-port mini-USB, type B
Operating temperatures -40…+85 °С
Built-in temperature sensor yes
LORAWAN®
LoRaWAN
®
class
A
Quantity of LoRa channels
16
Frequency plans supported by default
RU868, EU868, KZ865, custom (EU868
based)
Frequency plans available as order option
IN865, AS923, AU915, KR920, US915
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)
Maximum transmitter power 100 mW
POWER
Battery
3600 mAh replaceable SAFT LS 17500
Calculated number of packets sent by the device
with default settings
80 000
CASE
Housing dimensions 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 ON
Confirmed Uplinks OFF
Rx 1 Delay
1 second
Join Accept Delay 5 seconds
Uplink number of transmissions 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-11 is represented in small plastic case which has four screws and mounting for
DIN-rail.
1 – screw ø 2 mm х 8 mm, cross
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.
4 – launch button
5 – LED indicator
6 – contacts
7 – USB-port
1 2
3
4
5
6
7
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CONTACTS DESCRIPTION
When connecting a radio modem to external devices, consider the internal circuitry of
its pulse inputs shown below.
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 counter has 4 pairs of contacts that is allows to connect circuits with the
following types of NO contacts:
reed switch;
mechanical pushbutton;
open-collector output.
Equipment with NAMUR pulse output is not supported
Polarity effects only "open collector" circuits.
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.
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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 it 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.
For mounting you will need:
cross-shaped screwdriver ;
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-11 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-11 communication protocol with LoRaWAN®network.
In fields consisting of several bytes, the little endian byte order is used
VEGA SI-11 PULSE COUNTER TRANSMITS THE FOLLOWING TYPES OF PACKETS
1. Packet with current readings, sent regularly on LoRaWAN port 2
Size in bytes
Field description
Data type
1 byte Packet type, this packet == 1 uint8
1 byte
Battery charge, %
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 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
Time zone considered during collection data from an external meter.
2. «Alarm» 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 uint8
4 bytes Packet time (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. 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.
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4. 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 bytes Parameter value -----
… … …
2 bytes ID of parameter uint16
1 byte Data length (len) uint8
len bytes Parameter value -----
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VEGA SI-11 PULSE COUNTER RECEIVES PACKETS OF THE FOLLOWING TYPES
1. Real-time clock adjustment – send by application on LoRaWAN port 4
Size in bytes
Field description
Data type
1 byte
Packet type, this packet = 255
uint8
8 bytes
The value in seconds for which you need to adjust the time.
Can be positive or negative
int64
2. Packet with request of settings – sent by application on LoRaWAN port 3
Size in bytes
Field description
Data type
1 byte
Packet type, this packet == 1
uint8
Answering this packet, the device sends the packet with settings.
3. Packet with settings is identical to such packet from device
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 bytes
Parameter value
-----
…
…
…
2 bytes
ID of parameter
uint16
1 byte
Data length (len)
uint8
len bytes
Parameter value
-----
The package with settings sent to the device may not contain all the settings supported
by the device, but only the part that needs to be changed.
Table of ID of SI-11 parameters and these possible values
ID of
parameter
Description
Data
length
Possible values
4
Confirmed uplinks
1 byte
1 – confirmed
2 – unconfirmed
8
Uplinks number of transmissions
1 byte
from 1 to 15
12
Input 1 mode
1 byte
1 – pulse
2 – guard
13 Input 2 mode 1 byte 1 – pulse
2 – guard
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14 Input 3 mode 1 byte 1 – pulse
2 – guard
15
Input 4 mode
1 byte
1 – pulse
2 – guard
16
Communication period
1 byte
1 – 1 hour
2 – 6 hours
3 – 12 hours
4 – 24 hours
5 – 5 minutes
6 – 15 minutes
7 – 30 minutes
49 Data collection period 1 byte 1 – 1 hour
2 – 6 hours
3 – 12 hours
4 – 24 hours
5 – 5 minutes
6 – 15 minutes
7 – 30 minutes
55 Time zone, in minutes 2 bytes from -720 to 840
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5 STORAGE AND TRANSPORTATION REQUIREMENTS
Vega SI-11 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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