Atim Cloud Wireless ACW/LW8-CTS User manual

Atim Cloud Wireless®
Current temperature sensor
User guide
Models concerned :
ACW/LW8-CTS

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ATIM_ACW-CTS_UG_EN_V1.1
Table of contentss
THIS USER GUIDE APPLIES TO THE FOLLOWING REFERENCES ............................................. 4
VERSION HISTORY OF THIS DOCUMENT ............................................................................. 4
DISCLAIMER .....................................................................................................................5
TRADEMARKS AND COPYRIGHTS ....................................................................................... 5
DECLARATION OF CONFORMITY ........................................................................................ 5
ENVIRONMENTAL RECOMMENDATIONS .............................................................................. 6
A. ENVIRONMENT ..........................................................................................................................................................6
B. RADIO .................................................................................................................................................................... 6
TECHNICAL SPECIFICATIONS ............................................................................................. 7
A. PRODUCT ................................................................................................................................................................ 7
B. INTEGRATED SENSOR FUNCTIONS ................................................................................................................................. 7
BOX .................................................................................................................................7
A. DIMENSIONS ............................................................................................................................................................ 8
B. INSTALLATION ...........................................................................................................................................................8
C. IDENTIFICATION .........................................................................................................................................................9
OPERATING PRINCIPLE ..................................................................................................... 9
A. ENERGY RECOVERY ....................................................................................................................................................9
B. OPERATING DIAGRAM ...............................................................................................................................................10
ACW CONFIGURATOR ......................................................................................................12
A. COMPATIBLE CONFIGURATOR VERSIONS ....................................................................................................................... 12
B.EGREENSENSOR CONFIGURATION ............................................................................................................................... 13
Transmission period and frame samples ............................................................................................................13
Communication interface ................................................................................................................................... 15
Frame timestamp ...............................................................................................................................................15
Radio module configuration ............................................................................................................................... 16
Product clock ......................................................................................................................................................17
Product versions .................................................................................................................................................17
Sensor configuration .......................................................................................................................................... 18
Thermocouple activation .......................................................................................................................................................18
Threshold Temperature, current and voltage .......................................................................................................................18
Current and temperature measurement calibration ............................................................................................................ 18
Real-time measurement display ........................................................................................................................................... 18
Configuration validation ........................................................................................................................................................ 18
C. FACTORY SETTINGS ................................................................................................................................................. 19
D. ACW UPDATE ........................................................................................................................................................ 20
UPLINK FRAME FORMAT ................................................................................................. 21
A. DESCRIPTION ......................................................................................................................................................... 21
Classic frame ......................................................................................................................................................21
The different types of frame .............................................................................................................................. 22
Measurement frame ...........................................................................................................................................22
Measurement alert frame ...................................................................................................................................24
Error and general alarm frame ...........................................................................................................................25
B. EXAMPLE FRAMES ....................................................................................................................................................27
Measurement frame ...........................................................................................................................................27
Measurement alert frame ...................................................................................................................................29
DOWNLINK .....................................................................................................................30
A. PARAMETER MODIFICATION ........................................................................................................................................31
B. SEND DOWNLINK COMMAND. ..................................................................................................................................... 33

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TECHNICAL SUPPORT ......................................................................................................34

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This user guide applies to the following references
Version history of this document
Version
Date
Description
Author
Software
version
concerned
/Revision
1.2
07/12/2023
Correction of exemple frame errors
YL
V1.0.7 / A1
1.1
25/09/2023
Patches
FR
V1.0.5 / A0
1.0
27/09/2022
Document creation
YL
V1.0.5 / A0
Product references
Product version
(Visible on product label)
LoRaWAN
ACW/LW8-CTS
A1

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ATIM_ACW-CTS_UG_EN_V1.2
Disclaimer
The information contained herein is subject to change without notice and does not represent a
commitment on the part of ATIM radiocommunications. ATIM radiocommunications provides this
document "as is" without warranty of any kind, either expressed or implied, including, but not limited to,
the implied warranties of merchantability or fitness for a particular purpose. ATIM radiocommunications
may make improvements and/or changes in this manual or in the product(s) and/or program(s)
described in this manual at any time.
Trademarks and copyrights
ATIM radiocommunications®, ACW ATIM Cloud Wireless®, ARM Advanced Radio Modem® are registered
trademarks of ATIM Sarl in France. Other trademarks mentioned in this document are the property of
their respective owners.
Declaration of conformity
All ACW (Atim Cloud Wireless®) products comply with the regulatory requirements of R&TTE Directive
1999/5/EC Article 3 :
1 Safety (Article 3.1a of Directive 1999/5/EC)
NF EN60950-1 Ed. 2006/A1:2010/A11:2009/A12:2011 (health)
EN62479: 2010 (power <20mW) or EN62311:2008 (power > 20mW)
2 Electromagnetic compatibility (Article 3.1b of Directive 1999/5/EC)
EN 301489-3 v1.4.1, EN 301489-1 V1.9.2
3 Efficient use of the radio frequency spectrum (Article 3.2 of Directive 1999/5/EC)
ETSI EN300 220-2 v2.4.1 and EN300 220-1 v2.4.1

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Environmental recommendations
a. Environment
Observe the product's storage and operating temperature ranges. Failure to do so could disrupt
operation and even damage the equipment.
This equipment is not designed for outdoor use!
Follow the precautions and instructions below to ensure your safety and that of your environment, and
to prevent damage to your equipment.
General danger - If the instructions are not followed, there is a risk of damage to equipment.
WARNING : do not install near heat or moisture.
This symbol on the product or its packaging indicates that this product must not be disposed of
with your other household waste. Instead, it is your responsibility to dispose of your waste by
taking it to a designated collection point for the recycling of electrical and electronic appliances.
Separate collection and recycling of your waste at the point of disposal will help conserve natural
resources and ensure recycling that respects the environment and human health. For more
information on your nearest recycling center, contact your local town hall, your household waste
disposal service or the store where you bought the product.
b. Radio
The modems in the ACW range are part of the radiocommunication modems using the ISM (Industrial
Scientific Medical) bands, which can be used freely (free of charge and without authorization) for
industrial, scientific and medical applications.

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Technical specifications
a. Product
Antennas
Integrated (¼ wave)
Temperature
-20°C to +55°C (operating)
-40°C to +70°C (storage)
Power
None (energy recovery)
Weight
130g
Frequency
863 – 870 MHz
Power
25 mW (14 dBm)
Radio version
Sigfox : NA
LoRaWan : v1.0.4
Flow
Sigfox : NA
LoRaWAN : 250 bit/s à 5.5 Kbit/s
Consumption
Sigfox
LoRaWAN
Tx mode
NA
30 mA
Watch
NA
19 µA (sans BLE)
52µA (avec BLE)
Rx mode
NA
5 mA
b. Integrated sensor functions
Current sensor
Range
0A to 200ARMS
Resolution
0,01A
Precision
Class 1
Thermocouple (optional remote sensor)
Range
-200°C to 1200°C
Resolution
0,1°C
Precision
3%
Box

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ATIM_ACW-CTS_UG_EN_V1.2
a. Dimensions
Dimensions in mm
b. Installation
1. Open the sensor's movable
jaw by lifting the tab on the side
of the sensor.
2. Position the sensor so that the
conductor passes between the
two legs of the magnetic circuit.
3. Close the movable jaw again
until the tongue snaps into place
on its catch.
CLIC

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ATIM_ACW-CTS_UG_EN_V1.2
c. Identification
The product's LoRaWAN identifier is printed on the sensor and in the status bar of the ACW configurator.
It can also be read by scanning the QR-Code.
For LoRaWAN modems, the communication keys are automatically given by the network (pairing by
"Over The Air Activation", or OTAA).
Operating principle
a. Energy recovery
As this is a stand-alone product, it needs a certain amount of time to store enough energy to be able to
start up, particularly on first use when the storage element is empty.
The minimum current required to start drawing energy is 2ARMS. The graph and table below give the
charging times for different currents in the phase conductor for cold start.

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ATIM_ACW-CTS_UG_EN_V1.2
For currents above 40ARMS, charging time does not drop below 10mn.
In normal operation, if the line current drops below 1ARMS, the energy recovery stage is deactivated.
The sensor will continue to operate on stored energy for approximately 30 minutes.
When the current in the phase is restored, the time required to restart is given by the graph below :
In continuous operation, a line current of amplitude 1.2ARMS is sufficient to supply the transducer with
the energy required by the system without using the energy stored in the storage element.
b. Operating diagram
Simplified block diagram :

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ACW Configurator
a. Compatible configurator versions
For a sensor with the following application software
version
Use the ACW Configurator version
LoRaWan: V1.0.5 (revision A0)
V1.0.4 or higher
Download and install the setup software ''setupACW.exe'' at :
https://www.atim.com/wp-content/uploads/documentation/CONFIGURATEUR/ACW/configurateur-acw.exe
When the ACW Configurator is launched, the waiting window appears on the screen.
WARNING
Connection to the configurator is only possible in local mode (BLE).

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1
2
3
b. eGreenSensor configuration
Transmission period and frame samples
The transmission period
corresponds to the time interval between each transmission of
a measurement frame. This period can be configured from :
1 min to 255h for a LoRaWan product
The default transmission period is 10min.
WARNING
If the transmission period is less than 4 min, a warning message will be displayed to inform the user that ADR
(Adaptive Data Rate) will be deactivated, and that the product will freeze its Data Rate at SF9.
The number of samples in a
frame can be configured. In this way, several measurements are
taken before the frame containing all these measurements is sent.
For example, with a period of 60 minutes and a number of samples of 4, a measurement will be taken
every 15 minutes and the 4 samples will be sent in a frame every hour.
Finally, it is possible to apply data
redundancy , which means that samples that were sent in
2
3
1
4
5
6
7
8
9
10

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frame n-1, n-2 or n-3 can be sent again in frame n following the new measurement samples (the most
recent sample first in the frame and the oldest last).
For example, for a history depth of 3, data from the last 2 frames will be sent, in addition to new data, in
the next frame.
By default, there is only one sample per frame, and no redundancy is enabled.

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4
5
Communication interface
The product has two communication interfaces :
LoRaWAN
BLE
The BLE interface can be activated or deactivated using the
parameter . The LoRaWAN
interface cannot be disabled.
WARNING
If the BLE interface is deactivated, it will no longer be possible to connect to the configurator. The configurator
can only be accessed via BLE. The product can still be reconfigured, but using LoRaWAN downlinks.
By default, the BLE interface is activated.
Frame timestamp
It is possible to disable/enable time stamping of all radio
frames.
WARNING
When enabled, this option monopolizes 4 bytes in the frame, which cannot be used for useful data. These 4
bytes represent the timestamp of the sensor data acquisition.
By default, time stamping is disabled.

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6
Radio module configuration
The product can operate in three different
ways
For a LoRaWAN product
1. LoRaWAN Class A : The product is modulated in LoRa using the LoRaWAN Class A protocol.
This is the product's default mode. This mode requires a private LoRaWAN network (private
gateway), or an operated network to view the data sent by the product.
2. Local mode : Product modulation remains LoRa modulation. However, there is no LoRaWAN
overlay. In this mode, you need to choose the radio channel on which the product will transmit.
To receive the product's frames, you need a radio modem with the same parameters. For the
moment, this mode has no real concrete use case, but future developments of this mode will enable
interesting point-to-point functionalities.
WARNING
This radio mode is NOT AVAILABLE on ACW-CTS revision A0 (version detailed in this User Guide).
2. Compatibility mode with the ATIM LoRa/LoRAWAN Repeater : This mode is
selected when you want to operate in classic LoRaWAN, but no network (private or operated) is
accessible. This mode, combined with the ATIM LoRa/LoRaWAN Repeater, enables you to join the
LoRaWAN network via this repeater. In this mode, if the network is not joined (no JOIN_ACCEPT),
the product will transmit its frames locally. The LoRa/LoRaWAN repeater then relays these frames
to the network it has joined (the repeater must be placed at a location with connectivity to the
desired network).
IMPORTANT NOTE
If the product has access to the LoRAWAN network, the default operating mode (LoRAWAN Class A) should be
selected. If this mode is chosen, even though the network is accessible, the product will still send a frame on
the LoRAWAN network, and the same frame in Local mode to the Repeater, thus unnecessarily consuming
battery power.
WARNING
This radio mode is NOT AVAILABLE on ACW-CTS revision A0 (version detailed in this user guide).

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7
8
Product clock
Each time you connect to the configurator, the product clock is updated (based on the computer clock)
and displayed. In addition, an offset in seconds can be applied if required.
Product versions
When connected to the product, the configurator retrieves all product software versions (product
software and radio module software) and the
network identifier.

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Sensor configuration
Here are the configuration parameters available for this sensor
9
:
Thermocouple activation
The ACW-CTS has a connector for type K thermocouples.
If such a thermocouple is used, the thermocouple must be activated in the configurator, so that the
measurement is carried out, and the temperature is also transmitted via the LoRaWAN interface.
By default, the thermocouple is not activated.
Threshold Temperature, current and voltage
The ACW-CTS periodically measures the current used to recharge the storage element, as well as the
voltage at its terminals.
If the thermocouple is activated, the product also measures temperature.
Sur l’ensemble de ces trois valeurs (courant, tension, et température), il est possible de définir des
seuils.
Thresholds can be set with a high and a low threshold, according to a configurable hysteresis and
overshoot time. When a measurement reaches a threshold, a radio frame is sent (see chapter Alert
frame for details of the frame format).
Current and temperature measurement calibration
Current and temperature measurements can be calibrated by means of an offset and a coefficient.
For current measurement, it is also possible to select a different gauge.
Real-time measurement display
The various measurements are updated every 10 seconds and displayed on the configurator.
Configuration validation
Once all the configuration parameters have been entered, click on the "Apply to ACW" button to send
the configuration to the product.
10
It is also possible at any time to read the product's current configuration, which will update the settings
on the configurator, or to reset the product to its default configuration.

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c. Factory settings
Radio frame parameters
- Radio frame transmission period : 10 minutes
- Number of samples : 1
- History depth : 1
General parameters
-Communication interface: LoRaWAN and BLE
-Timestamp : disabled
-Radio parameters: LoRaWAN Class A (for a LoRa product)
Sensor parameters
Thermocouple
-Status: Off
Current measurement
-Threshold disabled
-Rating: 1000 turns / 0.5 Ohms

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d. ACW update
Feature not available in version A0 of the product !