Vega Absolute SI-13 User manual

www.vega-absolute.ru
LORAWAN DEVICE
VEGA SI-13
USER MANUAL
DOCUMENT REVISION
FIRMWARE VERSION
14 A.0b3EU

Vega SI-13 / User Manual
2 Revision № 14 of 06 August 2021
CONTENTS
INTRODUCTION............................................................................................................................................................................3
1 DESCRIPTION AND OPERATION ............................................................................................................................................4
Device description ....................................................................................................................................................................4
Comunication and data collection algorithm .....................................................................................................................4
Functional ...................................................................................................................................................................................6
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
Transparent mode operation................................................................................................................................................15
Independent pooling mode ..................................................................................................................................................15
4 COMMUNICATION PROTOCOL ...........................................................................................................................................16
Vega SI-13 modem transmits the following types of packets........................................................................................16
1. Packet with current readings ..................................................................................................................................16
2. Data packet from an external device, received via RS-232 or RS-485 interface............................................16
3. Packet with time correction request......................................................................................................................16
4. Information packet ...................................................................................................................................................17
5. Settings packet...........................................................................................................................................................17
Vega SI-13 modem receives packets of the following types..........................................................................................18
1. Real-time clock adjustment.....................................................................................................................................18
2. Packet with request of Information packet ..........................................................................................................18
3. Packet with request of settings...............................................................................................................................18
4. Packet with settings ..................................................................................................................................................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-13-232 and Vega SI-13-485 modems
(hereinafter – the modem) manufactured by Vega-Absolute OOO and provides information
on powering and activation procedure, control commands and functions of the modem.
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-13 has two design options, varying by data exchange interface:
oVega SI-13-232 with RS-232 interface;
oVega SI-13 -485 with RS-485 interface.
Vega SI-13 modem is designed for counting of pulses incoming to 2 independent
inputs, further accumulating and transmitting of this information in the LoRaWAN®network.
In addition, Vega SI-13 can be used as a security device - all inputs can be configured as
security inputs.
The modem can be used for any utilities’ meters and industrial equipment with RS-232
and RS-485 interfaces or pulse outputs, including water-, electricity-, and heat meters. Vega
SI-13 can work as a wireless modem in the transparent mode or pool meters by itself.
Equipment with NAMUR pulse output is not supported
The modem is powered by an 8…36 V external power supply.
COMUNICATION AND DATA COLLECTION ALGORITHM
Vega SI-13 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-13 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 (more than 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-13 modem is class C device (LoRaWAN®classification) and has the following
features:
Operation as LoRaWAN®<-> RS-232 or LoRaWAN®<-> RS-485 wireless modem
Independent polling of external equipment by custom commands
ADR support (Adaptive Data Rate)
Sending of confirmed packets (configurable)
Inputs can be switched to «security» mode for connection to external leakage
and safety sensors, etc.
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 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 2
Maximum input frequency 200 Hz
Security inputs up to 2
Interface RS-232 or RS-485
USB-port mini-USB, type B
Operating temperatures -40…+85 °С
Built-in temperature sensor yes
LORAWAN®
LoRaWAN®class C
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
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
External power supply
8…36 V
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
1
Data rate
DR0
Power
14 dBm
Communication 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-13 is represented in small plastic case which has four screws and mounting for
DIN-rail.
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 – LED indicator
5 – launch button
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.
The modem 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
,Ʇ
Signal ground
In1, In2
Pulse inputs 1 and 2
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 2 pairs of contacts that is allows to connect circuits with the
following types of NO contacts:
reed switch;
mechanical pushbutton;
open-collector output.