Elvaco CMi4170 User manual

INTRODUCTION
CMi4170 is an integrated meter connectivity module that is mounted
inside an Engelmann Sensostar S3/SC3 heating/cooling meter to deliver
meter data via a LoRaWAN network. For a complete description of the
product or for information in other languages, please visit the Elvaco AB
website, https://www.elvaco.com.
CMi4170
Integrated MCM for Engelmann Sensostar S3/S3C, LoRaWAN
If the module fails to join the LoRaWAN network, it will perform retries
until it succeeds. The time between each attempt will increase for every
attempt until it is performed once every day.
A new join attempt cycle can be manually started at any time by
rebooting the module (press and hold the push button (4) for 5-15
seconds, release the button when the green LED is lit) or by deactivating
and activating the module using the Elvaco OTC App.
INITIAL DATA RATE CALIBRATION
When activated, CMi4170 will initially transmit messages every minute in
order to let the LoRaWAN network adjust to an optimal data rate. After
three minutes, the module will start using its normal settings where the
message transmit interval is determined by the device configuration.
DEVICE CONFIGURATION
Before configuring the module, please make sure to apply the correct
configuration settings or profile by using the Elvaco OTC App. Settings
are transferred to the device using NFC.
Join EUI - The Join EUI sets the identification number of the application
server where data from the module will be delivered. The Join EUI is by
default set to 94193A030C000001 in all CMi4170 modules.
Activation type - There are two different activation types for LoRaWAN:
Over-the-air activation (OTAA) and Activation by personalization (ABP).
Elvaco strongly recommends using OTAA, where all network keys
are generated each time the module joins the LoRaWAN network. In
contrast, for ABP, all keys are set manually and stay constant over time.
Application key - The application key of each CMi4170 device is
generated by Elvaco and used in OTAA mode to generate network keys
when the module joins the LoRaWAN network. Keys are managed in a
secure way using Elvaco’s OTC (One Touch Commissioning) solution
which includes the Elvaco OTC App for configuration.
Message format - CMi4170 supports several different message formats.
Please refer to the CMi4170 user’s manual for more information about
the structure and payload of each message format.
Transmit interval - The transmit interval parameter is used to set the
module transmits messages.
EcoMode - EcoMode can be enabled to achieve a battery life of 10+1
or 6+1 years. The EcoMode table is then used to determine how often
the module is allowed to transmit data for each data rate. If the transmit
interval exceeds the limit in the EcoMode table, it will be lowered
accordingly.
Configuration lock - CMi4170 has a configuration lock feature which
can be used to prevent unauthorized users to access the module. When
configuration lock has been enabled, a user needs the device-specific
Product Access Key in order to access the device. Keys are managed
in a secure way using Elvaco’s OTC solution which includes the mobile
application for configuration.
After you have set the configuration parameters, place the phone next
to the meter and click Apply settings. Hold the phone still until it vibrates
three times, this confirms that new settings have successfully been
transferred to the device via NFC.
MOUNTING
CMi4170 is mounted in the module slot of an Engelmann Sensostar S3/
S3C meter. Grab the device by the outer edges and gently press it into
position.
Please make sure that the module’s push button (4) is facing upwards
and that the interface connector of the meter fits the interface
connector of the module (3).
NOTE
Electrostatic-sensitive device. Please observe
the necessary ESD protective measures when
installing the module.
ACTIVATION
By default, CMi4170 is set to passive mode, which means no messages
will be transmitted from the module until it is activated. The module can
be activated in one of the following ways:
By using the Elvaco OTC App: Open the Elvaco OTC app
(available in Google Play).
1. Scan the module, make sure NFC is activated on the phone.
2. In Elvaco OTC App, go to the “APPLY” tab,
3. Set “Power mode” to “Active”
4. Click “APPLY” in the bottom of the screen
5. Scan the module to apply new settings.
By using the module push button: Press down the push button of the
module for at least five seconds until the green LED lights up.
By using the Engelmann optical interface configuration tool “Device
monitor” or By using using the meter menu (for further information
please refer to Engelmann documentation).
When activated, CMi4170 will attempt to join the LoRaWAN network by
the following sequence:
1. Red LED – One flash
2. Green and Red LED – Lights simultaneously up for 1 second
3. Green LED – Several flashes while trying to connect to the LoRaWAN
network
4. Green LED – Lights up for 8 seconds when module succeeds in joining
the LoRaWAN network.
1. Green LED
2. Red LED
3. Interface Connector
4. Push Button
5. Pulse Input
6. LoRaWAN Antenna
Note: The NFC antenna
is located in the edge of
the PCB

© 2020, Elvaco AB. All rights reserved. The documentation and product are provided on an “as is” basis only and may contain deficiencies or in-
adequacies. Elvaco AB takes no responsibility for damages, liabilities or other losses by using this product. No part of the contents of this manual
may be transmitted or reproduced in any form by any means without the written permission of Elvaco AB. Printed in Sweden.
CMi4170 Quick Manual English
Version: 1.0
CONTACT INFORMATION
Elvaco AB Technical support:
Phone: [phone]
E-mail: [email protected]
Online: www.elvaco.com
User interface
Green LED & Red LED Indication for start-up / reboot /
switch-off
Push button Start-up / reboot / switch off
module
Configuration Elvaco OTC app, Downlink or
Engelmann optical configuration
tool “Device Monitor”
Approvals
EMC EN 301 489-1, EN 301 489-3
LoRa Alliance LoRaWAN® Certified
SAFETY
The warranty does not cover damage to the product caused by usage in
any other way than described in this manual. Elvaco AB can not be liable
for personal injury or property damage caused by usage in any other way
than described in this manual.
SERVER CONFIGURATION
Before CMi4170 is able to transmit messages on the LoRaWAN network,
device information needs to be added to the network server. More
specifically, the following parameters needs to be registered (in OTAA
mode) in order to enable the network server to receive messages from
the module:
• Device EUI (16-digit number printed on the device label)
• Application key
• Join EUI
NOTE
If activation mode is set to “ABP” the following information will be
needed: Network session key, Application session key and Device
address.
TECHNICAL SPECIFICATIONS
Mechanics
Dimensions 29 x 56 x 12 mm
Weight 9 g
Mounting In module slot of Engelmann
Sensostar S3/S3C
Electrical connections
Supply voltage Internal meter battery or PSU
(Engelmann External Power
Supply)
Electrical characteristics
Nominal voltage 3.0 VDC
Power consumption (max) 50 mA
Power consumption (sleep mode) ~2.5 µA
Environmental specifications
Operating temperature +5 °C to +55 °C
Operating humidity 0 - 93 % RH, no condensation
Operating altitude (max) 2000 m
Usage environment Indoors
Storage temperature -20 °C to 60 °C
EU DECLARATION OF CONFORMITY
This declaration of conformity is issued under the sole responsibility of the manufacturer:
Elvaco AB, Kabelgatan 2T, S-434 37 Kungsbacka, Sweden.
Product Year of CE-marking
CMi4170 2020
The object(s) of the declaration listed above is in conformity with the relevant Community
harmonization legislation:
Radio Equipment Directive (RED) 2014/53/EU
Low Voltage Directive 2014/35/EU
EMC Directive 2014/30/EU
RoHS 2011/65/EU
And are in conformity with the following harmonization standards or other normative documents:
EN 62368-1 2018 (Safety requirements for information and communication technology equipment)
EN 301 489-1 v2.2.3 (EMC standard for radio equipment and services)
EN 301 489-3 v2.1.1 (EMC standard for radio equipment and services)
EN 300220-1 v3.1.1 (SRD Low power radio equipment)
EN 300220-2 v3.2.1 (SRD Low power radio equipment)
EN 55032 CISPR 32 2015 (Radiated emission)
EN 61000-4-2 2008 (Immunity to ESD)
EN 61000-4-3 2006 (Immunity to RF field)
EN 61000-4-4 2012 (Immunity to electrical fast transient/burst)
EN 61000-4-5 2017 (Immunity to surge measurement)
EN 61000-4-6 (Immunity to HF injections)
EN 61000-4-11 (Immunity to voltage dips/short interruptions and variations)
Kungsbacka, Sweden, 2020-01-13
Håkan Saxmo, Chief Technology Officer
Radio characteristics
Frequency 868 MHz
Output power 14 dBm
Receiver sensitivity -135 dBm
LoRaWAN characteristics
Device class Class A, Bi-directional
LoRa version 1.0.2 Rev B
Activation OTAA or ABP
Data rate DR0-DR5 (250 bit/s-5470 bit/s)