Infinite AERINOS ADS-270 User manual
AERINOS®LoRaWAN IoT Platform
ADS-270 LoRa End Node
User Guide
ADS-270 User Guide
2
Document version: 1.1
Hardware version 1.0, Firmware version: 1.0
Copyright © 2020 –Infinite Informatics Ltd
All rights reserved.
Disclaimer
•While every effort has been made to ensure that the information in this guide is
accurate and complete, no liability can be accepted for any errors or omissions.
•Infinite Ltd reserves the right to change the specifications of the hardware and
software described in this guide at any time without prior notice.
•No part of this guide may be reproduced, transmitted, stored in fixed or removable
media or translated into any language in any form without the prior written
permission of Infinite Informatics Ltd.
•Infinite makes no warranties for damages resulting from corrupted or lost data
due to malfunction of the hardware or the software.
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Contents
1. Introduction 4
2. Operation modes 4
3. Hardware setup 5
3.1 Packing list 5
3.2 Opening the enclosure 5
3.3 Connectors & Jumper settings 6
3.4 Battery installation 7
3.5 Wiring the digital (Counter) Input 8
3.6 Wiring the analog input 9
3.7 Wiring the SDI-12 Serial Bus 11
3.8 Wiring the RS-485 Bus 11
4. Device configuration 12
4.1 Configuring DI1 as Counter input 12
4.2 Configuring AI1 as Analog Input 12
4.3 Configuring the SDI-12 channels 13
4.4 Configuring the MODBUS (RS-485) channels 15
4.5 Data Acquisition Parameters 16
4.6 Message Format 16
4.7 LORAWAN Parameters 17
5. Programming the Unit 18
6. Technical characteristics 19
7. Command Summary 20
7.1 Configuration Commands 20
7.2 Verification Commands 21
8. References 21
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1. Introduction
LoRaWAN is a communication protocol and a system architecture that is used to read
data from sensors through a dynamic network of gateways (end devices do not join a
single base station). LoRaWAN uses a chirp spread spectrum (CSS) modulation and
operates in the license free bands (ISM).
ADS-270 is an ultra low power, battery powered end node for the LoRa network. The
unit is available for the 863 to 870 MHz band. It incorporates two inputs, one digital
with pulse counter capability and one analog, as well as multiple excitation options for
powering transducers.
The device supports acquisition of up to 8 measurement channels, based on the
popular SDI-12 communication protocol and 8 channels, based on the MODBUS
protocol. ADS-270 can send an unlimited number of messages per day. The unit
incorporates a Lithium Thionyl Battery supplying system operation for up to 10 years.
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2. Operation modes
Modes of operation include:
1. Battery supplied cyclic operation.
2. External power adaptor supplied cyclic operation. The transition between the
two operation modes is uninterruptible.
3. Operation suspension for the device configuration.
3. Hardware setup
3.1 Packing list
1. ADS-270 Unit
2. Lithium Thionyl Battery (optional)
3.2 Opening the enclosure
Open the unit enclosure by inserting a screwdriver in the slot on the enclosure’s top.
Right Wrong
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3.3 Connectors & Jumper settings
3.3.1 LED
D14: Status LED, Blinking in configuration mode.
3.3.2 Connectors
JMP1: Put a Jumper to enter configuration mode.
J1: USB Serial connector. The unit can be supplied through the USB connector for
configuration and test.
Caution: Remove the external power supply (J3), if applied, before connecting the
USB connector!
J2: Battery connector.
J3: External power supply, 5V (stabilized).
J4-1: 12VDC sensor excitation (switched)
J4-2: 5VDC sensor excitation (switched)
J4-3: GND (COM), Common for AI1
J5-1: DI1, Digital Input (Counter: software selectable)
J5-2: SDI-12 data line
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J5-3: RS-485 bus (-)
J5-4: RS-485 bus (+)
J5-5: AI1, Analog Input
3.3.3 Switches
S1: Test mode button
3.4 Battery installation
WARNING: Pay attention to the correct polarity during battery
installation! The right polarity is marked up on the Battery Holder. The unit is
protected against reverse polarity.
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3.5 Wiring the digital (Counter) Input
COM: GND
Digital Input states are:
Contact closed →Input state: ON (logical ‘H’)
Contact open →Input state: OFF (logical ‘L’)
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3.6 Wiring the analog input
ADS-270 incorporates 1 analog input with 12 bit resolution. The Analog input is
scanned according to the selected message transmission period (see 4.5.2).
For current measurements, an external 47R/0.25W resistor can be applied between
the input terminals (J4-3 and J5-5) on AI1.
ADU-270 incorporates two excitation outputs (12V, 5V) to supply external
transducers. The excitation output switches ON/OFF according to the selected
message transmission period (see 4.5.2).
Low power transducers are recommended for preserving longer battery lifetime.
The unit performs 100 consecutive readings of the analog input for every sample,
thereby neglecting the maximum and minimum values and calculates the average of
the remaining 98 values.
3.6.1 0-1V Transducers
Scale settings: 0..1V →Raw scale:0..4095
3.6.2 Two Wire 0-20/4-20mA transducers
Scale settings: 0..20mA, Raw scale:0..3846
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3.6.3 AD592 temperature transducer (-25°C … 105°C)
Scale settings: -25°C … 105°C
Sensor Output: 0.641V..0.977V, Raw scale: 2625..4001
3.6.4 TMP36 temperature transducer (-40°C …50°C)
Scale settings: -40°C … 50°C
Sensor Output: 0.1V..1V, Raw scale: 410..4095
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