Elvaco CMi4110 Manuel utilisateur
CMi4110 User Manual
User manual
1.6 Edition
Publication date 2023-11-15
Copyright © 2023 Elvaco AB
All rights reserved. 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.
All trademarks and copyrights are acknowledged.
The contents of this manual, including product data, diagrams, charts, etc. represent information on
products at the time of publication and are subject to change without prior notice. It is therefore
recommended to contact Elvaco AB for the latest product information before purchasing the product.
The documentation and product are provided on an “as is” basis only and may contain deficiencies or
inadequacies. Elvaco AB takes no responsibility for damages, liabilities, or other losses resulting from
the usage of this product or manual.
Table of Contents
1. About this manual ............................................................................................................ 4
1.1. Symbols ................................................................................................................. 4
1.2. Terms and abbreviations .......................................................................................... 4
2. Safety ............................................................................................................................... 5
3. Product ............................................................................................................................ 6
3.1. Application description ............................................................................................. 6
3.2. Features ................................................................................................................. 6
3.3. Compatibility ........................................................................................................... 6
3.4. Parts overview ........................................................................................................ 7
4. Installation ....................................................................................................................... 8
4.1. Mounting the meter connectivity module ................................................................... 8
4.2. Connecting an external antenna ............................................................................... 8
4.3. Activating the module .............................................................................................. 8
4.4. Joining the LoRaWAN network ................................................................................. 8
5. Operation ....................................................................................................................... 10
5.1. Server configuration .............................................................................................. 10
5.2. Configuration ........................................................................................................ 10
5.2.1. Configuration via Elvaco OTC app ............................................................... 10
5.2.2. Configuration via downlink .......................................................................... 10
5.3. Transmit interval .................................................................................................... 11
5.3.1. Transmit interval in EcoMode ...................................................................... 11
5.3.2. Setting the transmit interval manually ........................................................... 11
5.3.3. Setting an upper limit for number of daily telegrams ...................................... 11
5.4. Time handling ....................................................................................................... 12
5.5. Adaptive data rate (ADR) ....................................................................................... 12
5.6. Message encoding ................................................................................................ 12
5.7. Security and access control ................................................................................... 12
5.8. Meter communication error messages .................................................................... 12
5.9. Rebooting and switching off the module .................................................................. 13
5.9.1. Rebooting the module ................................................................................. 13
5.9.2. Switching off the module ............................................................................. 13
5.9.3. Soft start of the module ............................................................................... 13
6. Configuration options .................................................................................................... 14
6.1. Device configuration .............................................................................................. 14
6.2. Elvaco OTC app configuration options .................................................................... 14
6.3. Downlink configuration options ............................................................................... 16
6.4. Message formats ................................................................................................... 16
6.4.1. Unscheduled message formats ................................................................... 18
6.4.2. Scheduled message formats ....................................................................... 22
7. Technical specifications ................................................................................................. 29
7.1. European standards .............................................................................................. 30
7.2. Simplified Declaration of Conformity ....................................................................... 30
8. Document history ........................................................................................................... 31
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3
1. About this manual
This manual covers information needed to mount, install, configure, and use the product. It is intended
for installers and system integrators.
To download the latest version of this User manual, visit the Elvaco website, https://www.elvaco.com.
There you will also find information about Elvaco’s other products and services.
1.1. Symbols
The following symbols are used throughout the manual to emphasize important information and useful
tips:
WARNING
Indicates a potentially dangerous situation that could result in severe injuries or serious equipment damage.
CAUTION
Indicates a potentially dangerous situation that could result in minor injuries or equipment damage.
NOTE
Indicates information that is important to take into consideration for safety reasons or to assure correct operation of
the product.
TIP
Indicates information intended to help you get the most out of your product. It can for example be used to highlight a
possible customization option related to the current section.
1.2. Terms and abbreviations
Abbreviation Description
DIB Data Information Block
DIF Data Information Field
VIF Value Information Field
MCM Meter Connectivity Module
Number representation
• Decimal numbers are represented as normal number, i.e. 10 (ten)
• Hexadecimal numbers are represented with prefix 0x, i.e. 0x0A (ten)
• Binary numbers are represented with the prefix 0b, i.e. 0b00001010 (ten)
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2. Safety
The following safety precautions must be observed during all phases of the operation, usage, service,
or repair of the product. Users of the product are advised to convey the following safety information to
users and operating personnel and to incorporate these guidelines into all manuals supplied with the
product. Failure to comply with these precautions violates safety standards of design, manufacture and
intended use of the product. Elvaco AB assumes no liability for customer’s failure to comply with these
precautions.
CAUTION
Electrostatic-sensitive product. Observe the necessary ESD protective measures when installing the product.
NOTE
The product receives and transmits radio frequency energy while switched on. Remember that interference can occur
if the product is used close to TV sets, radios, computers or inadequately shielded equipment. Follow any special
regulations and always switch off the product wherever forbidden, or when you suspect that it may cause interference
or danger.
NOTE
Waste electrical products should not be disposed of with household waste. Please recycle where facilities exist.
Contact your Local Authority for recycling advise.
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3. Product
3.1. Application description
CMi4110 is a cost-effective LoRaWAN meter connectivity module, which is mounted in a Landis+Gyr
UH50 meter or a UC50 calculator. It uses a very energy-efficient scheme to deliver meter data to
a receiving (application) server over a LoRaWAN network. Meter data is securely transmitted, using
LoRaWAN end-to-end security scheme.
CMi4110 can both be retrofitted into deployed meters or mounted before deployment.
3.2. Features
CMi4110 has the capability to offer a combination of battery operation with very long lifetime and a
versatile application through its many configuration options.
Key features of the module include:
•LoRaWAN certified
The CMi4110 is certified according to LoRaWAN alliance.
See https://lora-alliance.org/lora_products/cmi4110ext/ for more information.
•Long battery lifetime
The module’s EcoMode feature enables the module to achieve a battery-lifetime of at least 11+1
years.
•No meter installation needed
As soon as the meter connectivity module has been mounted and started up, it will join the LoRa-
WAN network and start delivering meter data, i.e. no manual steps need to be taken in order to install
the product in the meter.
•Quick commissioning
The product uses Elvaco’s One-Touch Commissioning (OTC) solution to securely and quickly config-
ure products deployed. Using Elvaco’s OTC App, simply enter your desired settings and place your
phone on the right side of the L+G UH50 meter / UC50 calculator. New settings will be applied
instantaneously via NFC.
•A unique and flexible message scheme
• Meter data aligned with meter’s internal clock and redundant daily energy values enables coordi-
nated high-precision readouts without network congestion and assures reliable delivery of daily
energy consumption.
• Several message formats to choose between, including JSON, gives the right fit for the unique
demands of each application.
3.3. Compatibility
CMi4110 is compatible with all L+G UH50 meters using software version 5.15 or higher as well as with
all L+G UC50 calculators using software version 8.06 or higher.
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CMi4110 is supplied with power from the UH50/UC50 D cell battery. The module is also compatible
with Elvaco’s 230V CMip2110 PSUs and with the following PSUs from Landis+Gyr: WZU-AC230,
WZU-AC110, WZU-ACDC24-00.
3.4. Parts overview
Buttons, indicators, and connectors
1. Meter interface
2. Push button
3. Green LED
4. Red LED
5. Tamper switch (optional)
6. External antenna connector (optional)
7. LoRa antenna
8. NFC antenna
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4. Installation
4.1. Mounting the meter connectivity module
1. Mount CMi4110 in module slot 2 of either;
a. a L+G UH50 heat meter, or
b. a L+G UC50 heat calculator.
4.2. Connecting an external antenna
1. Order your desired antenna (wall-mount or magnet-mount) from the Elvaco (or L+G) accessory
assortment.
2. Use the SMA connector (6) to connect the external antenna (if using CMi4110Ext).
CAUTION
If using an external antenna, make sure to mount it at least 0.5 meters away from the meter in order not to cause
interference.
4.3. Activating the module
Upon delivery, CMi4110 is set to passive mode, which means no messages will be transmitted from the
module. There are two ways to activate the module:
Via the module
1. Press down the push button (2) for at least 5 seconds until the green LED lights up.
2. Release the button.
3. Wait for one to eleven seconds.
The CMi4110 indicates start-up by flashing red and green LEDs for one second.
Via Elvaco OTC app
1. Open Elvaco OTC app.
2. Go to APPLY.
3. Set the Power mode to “Active”.
4. Select APPLY at the bottom of the screen and then Apply settings
5. Place the phone on the right side of the meter.
The mobile phone vibrates three times to indicate that settings have successfully been applied.
4.4. Joining the LoRaWAN network
After activation, CMi4110 will attempt to join the LoRaWAN network. The phase is indicated by short
flashes every 5th second on the green LED. When CMi4110 succeeds in joining the LoRaWAN network,
the green LED will lighten up for 8 seconds.
Network join LED indication
When the module has joined the LoRaWAN network, meter data will initially be transmitted from the
module every minute (regardless of transmit interval settings) in order to set the right data rate. After 10
minutes of calibration, the module will start to deliver meter data using its configured settings.
CMi4110 User Manual
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NOTE
When activation-by-personalization (ABP) is used, the module does not perform a join operation before sending
messages. Therefore, the 8-second indication of connection will not appear in ABP mode.
Attempts to join the network for firmware version <1.07
If the module fails to join the LoRaWAN network after the first 6 attempts, it will backoff for more time
for each new retry until the delay between each retry is more than hours. This is initiated to conserve
battery.
A new join attempt cycle can be manually started anytime by pressing down the push button (2) for at
least 5 seconds, until the green LED lights up, and then release the button. It will do retries on both DR0
and DR5.
Attempts to join the network for firmware version >=1.07
The module tries to join the LoRaWAN network with six requests, seven seconds apart, then sleeps for
twelve hours and then sends another six requests. This sequence goes on forever.
A new join attempt cycle can be manually started anytime by pressing down the push button (2) for at
least 5 seconds, until the green LED lights up, and then release the button. It will do retries on both DR0
and DR5.
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5. Operation
5.1. Server configuration
Before the module is able to transmit messages via 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 application key does not need to be added to the network server. Instead, the
following information will be needed: Network session key, Application session key and Device address.
5.2. Configuration
5.2.1. Configuration via Elvaco OTC app
CMi4110 is configured via the Elvaco OTC app. Elvaco OTC App can be downloaded from Google Play
for Android or App Store for iOS. It uses NFC to transfer settings to the module.
1. Open the Elvaco OTC app on your smartphone
2. Place your smartphone close to the device and press SCAN
TIP
If the CMi4110 is installed in the meter, the NFC field is easiest accessible if placing your smartphone at the
lower part on the right hand side of the meter.
3. After a successful scan, the current settings will be displayed on the INSPECT tab.
4. To change settings, go to the APPLY tab. Use the toggle button to activate an option, and make
your changes.
5. When done with changes press APPLY at the bottom of the screen, then Apply settings, Repeat
step 2 to change the settings in the device.
A successful change is acknowledged by a vibration.
NOTE
The Elvaco OTC app is compatible with iPhone or Android phones with Android 5.0 or later.
5.2.2. Configuration via downlink
The product supports configuration via downlink, i.e. sending commands to an end-device via the
LoRaWAN network. Communication via downlink is sent on LoRa port 2 and can only be made in a
short window after an uplink transmission from module to server. Therefore, time-critical communication
should not be performed over downlink.
Downlink commands are structured according to the following format: “0x00” "TLV" "Number of bytes in
configuration" "Configuration".
NOTE
This feature should only be used sparingly due to bandwidth consideration.
CMi4110 User Manual
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