Ewattch SQUID-HC-LORAWAN User manual

EWATTCH
CONNECTED SENSORS FOR
ENERGY MANAGEMENT
SQUID-HC-LORAWAN
Technical manual for the LoRaWAN version
SQUID.
Version 1.1
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SQUID-HC-LORAWAN Technical Documentation
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Hazards and warnings 03
Certifications and conformities 03
References 04
Presentation 05
Product description 05
Product installation 06
Radio communications 08
Technical specifications 11
Contact 13
TABLE OF CONTENTS

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CEM
• EN 61000-6-2 Immunity for industrial environments
• EN 61000-6-3 Emissions for residential environments
• EN 55022 Immunity IT equipment
HAZARDS AND WARNINGS
Manufacturer cannot be held responsible for failure by user to comply with the
instructions in this manual. Any service performed on this product must be completed
by a qualified individual. Replacement of this product must be performed by a qualified
individual. Failure to use this equipment in accordance with the specifications in this
documentation could lead to a hazard. No parts in this device should be replaced or
removed. Disconnect all power supplies before working on the equipment.
CERTIFICATIONS AND CONFORMITIES
Radio
• EN 300220
Safety
• EN 61010 IT equipment

REFERENCES
SQUID-LORA-HC The LoRaWAN version of the SQUID allows
currents to be measured up to 600A.
Accessories
CURCLAMP-HC-S1 Measurement clamps for SQUID-HC - Ø10mm - 100A eff max
CURCLAMP-HC-S2 Measurement clamps for SQUID-HC - Ø16mm - 100A eff max
CURCLAMP-HC-S3 Measurement clamps for SQUID-HC - Ø24mm - 300A eff max
CURCLAMP-HC-S4 Measurement clamps for SQUID-HC - Ø36mm - 600A eff max
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PRESENTATION
3
2
1
2
4
5
Front face with 3 information LEDs
Power: Presence of supply voltage
Data: Transmission of radio frame
Error: Operation error or product reset
1
3
212 x configurable current sensor inputs
Power connector 5VDC-1A
Antenna output (option)
4
Configuration switch (located under the cover on the bottom of the product)
5
PRODUCT DESCRIPTION
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The SQUID is a sensor equipped with 12 current measurement clamps which send
measured current values by means of a wireless LoRaWAN link.
The product sends the consumption index of the 12 clamps in Ah at configurable
intervals.
The SQUID is powered by 5V DC by means of an external power supply.

PRODUCT INSTALLATION
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RISK OF ELECTROCUTION, EXPLOSION
OR ELECTRICAL ARC
Disconnect all power supplies before working on the equipment.
Manufacturer cannot be held responsible for failure by user to comply with
the instructions in this manual.
Installation of the sensor
Mounting and disassembly
Prerequisite
This equipment must be installed on a DIN 35mm rail mounted horizontally on the
electrical panel.
Make sure to snap the box properly into the DIN rail.
Make provision for the location of 5 modules to install the product on the electrical
panel. To disassemble, use a flat head screwdriver to loosen the clip
A 5V DC-2A power supply must be placed in the lead, before coming to supply the
SQUID. The wiring of the Extra Low Voltage Safety circuits must be maintained and
kept separated from circuits carrying hazardous voltages.
1
2
1
POWER
SUPPLY
5V DC

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• Power cable
1
• Connection of the measurement clamps
Connect the measurement probes to the 12 connectors on the top and bottom of the equipment.
It is possible to pass several phases into a single clamp in order to add them; however, the phases must
be passed in the same direction and the sum of the currents must not exceed the maximum specifica-
tion of the clamp.
CAUTION: Only install the probes when the circuit is powered off.
It is essential only to use reference measurement clamps: CURCLAMP-HC-SX.
These are type C clamps.
Prerequisite
Use a 5V DC power supply with minimum output
current of 2A
Make sure to use the correct polarity.
Up to 12 measurement
L N
+ -
2
POWER
SUPPLY
5V DC

RADIO COMMUNICATIONS
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LoRaWAN configuration
Transmission period
The SQUID periodically sends the current measurements performed on its 12
measurement clamps in the form of consumption indexes (Ah) via a LoRaWAN radio link
To be able to configure a SQUID on the LoRaWAN network, you must use the following
codes:
- DevEUI: This is a factory programmed identifier which makes each object unique and is
indicated on the label of each product.
E.g. 70B3D54750120168
- AppEUI: This single application identifier allows the objects to be grouped together. This
64-bit address allows the peripherals to be classified by application.
AppEUI Ewattch: 70B3D54750080001
- AppKey: This is a key shared between the peripheral and the network and used to derive
the session keys. This parameter might need to be changed.
Switches 1 and 2 allow the transmission period to be chosen
One transmission every
10 minutes
One transmission every
20 minutes
One transmission every
60 minutes
One transmission every
30 minutes
Switches 3 and 4 are currently not used
Not used
3 4

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Payload descriptions
The SQUID-LoRaWAN transmits its data in a raw format on different public and private
LoRaWAN networks.
The section below shows you how to decode the frames (Payload) sent by the SQUID.
Periodic frames
The periodic frames contain the data measured by the SQUID.
Example of a periodic transmitted frame (HEXADECIMAL):
0025 48 509F06 A03E0D 407D1A F56900 EAD300 D4A701 509F06 A03E0D 407D1A
F56900 EAD300 D4A701
Explanation of the frame structure:
Index
(in bytes)
Data sent periodically
Other possible values:
0x01: Data sent during an event
0x10: Sensor status data
Number of bytes sent.
0x25 in hexadecimals gives 37 bytes
(excluding header: Frame type and
Payload Size)
Type of object
0x48: SQUID (12 MEASUREMENT
CLAMPS)
04-june Channel 1 509F06 Channel 1: 4,340Ah
07-sept Channel 2 A03E0D Channel 2: 8,680Ah
10-dec Channel 3 407D1A Channel 3: 17,360Ah
13-15 Channel 4 F56900 Channel 4: 271.2Ah
16-18 Channel 5 EAD300 Channel 5: 542.5Ah
19-21 Channel 6 D4A701 Channel 6: 4,340Ah
••• ••• •••
37-39 Channel 12 D4A701 Channel 12: 4,340Ah
Name
Example
Description
1
Frame type
00
The data below are in an unsigned 24-bit format and little-endian encoded.
The multiplying coefficient is x 10 mAh
Example of conversion: 0x509F06 => 0x069F50 => 434000 decimal => x10mAh =>
4,340,000mAh or 4,340Ah and to have the power in VAh, it must be multiplied by the network
2
Payload size
25
3
Object Type
48

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Status frame
The status frames contain supplementary information concerning the sensors
(battery level, firmware version, etc.)
Example of a transmitted (HEXADECIMAL) status frame :
100A 0008 020401 0408 083C00
Explanation of the frame structure :
Index
(in bytes)
1 Frame type 10
and 60 x 10 = 600 seconds
i.e. a transmission every 10 minutes.
0x07 -> 0x02: Battery level normal
0x01: Level low
0x00: Level critical
Periodicity of transmissions in seconds.
Value of 16-bit code in little-endian to multiply by 10.
3C 00 => 0x003C hexadecimal i.e. 60 decimal
0x20: TyNess
0x04: Minor MSB version
0x01: Major LSB version
I.e. Version 1.4 firmware
0x08: Mains power
Other possible values:
0x08: Squid
Other possible values:
0x00: Environment
v0x01: Presence
0x02: Ambience
0x10: Pulse
8-9 Battery level 04 08
10-12 Periodicity 08 3C 00
3-4 Type of
sensor 00 08
5-7 Firmware
version 02 04 01
Name Object
2Payload
size 0A
Description
Status frame
Number of bytes sent.
0x0A in hexadecimals gives 10 bytes (excluding
header: Frame type and Payload Size)

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VOLTAGE
5 VDC
TECHNICAL SPECIFICATIONS
POWER SUPPLY
MAXIMUM CONSUMPTION
0.5A
NUMBER OF INPUTS
12
CONNECTIONS
CLAMPS AVAILABLE
4 different sizes : 10, 16, 24 et 36mm
Measurement clamp inputs
MAXIMUM CURRENT
60A - 100A - 300A - 600A
ACCURACY
± 4%
RESISTANCE
50 ohms
TYPE OF PLUG
SMA female
Antenna
FREQUENCY
868 MHz
UNIQUE SERIAL NUMBER
oui
FREQUENCY
868MHz
RADIO COMMUNICATIONs LoRaWAN
MAXIMUM TRANSMISSION POWER
25mW
COMMUNICATION DISTANCE
Up to 15 km in open areas
FIELD OF USE
Indoors
ENVIRONMENTAL CONDITIONS
OPERATING TEMPERATURE
From 5 to 40°C
STORAGE TEMPERATURE
From -20°C to +70°C
MAXIMUM ALTITUDE
2 000 m
DEGREE OF POLLUTION
2
OPERATING HUMIDITY
From 10 to 80 %, without condensation
POWER SUPPLY VOLTAGE FLUCTUATION
±10% of the nominal voltage
OVERVOLTAGE CATEGORY
III

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TECHNICAL SPECIFICATIONS (CONT.)
DIMENSIONS (H X L X D)
90,5 x 87,8 x 62 mm
PHYSICAL
BULK
5 modules
WEIGHT
152 g
MOUNTING
Rail as DIN EN 60715 (1 x 35 mm)

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CONTACT
wattch
13, Rue Maurice Jeandon
88100 Saint-Dié des Vosges
[e-mail]
www.ewattch.fr

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