Product overview

Application description

CMe2100 LTE is an M-Bus Metering Gateway for mobile networks with automatic fallback that reads up to 256 meters, compiles meter data into customized reports and delivers it to a receiving system. Via an IR interface it communicates with devices from Elvaco's CMe/CMeX-series and ABB electricity meters. CMe2100 LTE is compatible with all meters that use M-Bus. The product is configured and updated through SMS or HTTP.

Convenient setup using the mobile network

The CMe2100 is easily installed and configured using the mobile network. By sending text messages via a cellphone, the Metering Gateway can be setup without having to visit the site. A single SMS command will have the CMe2100 automatically search the 2-wire M-Bus line and install all meters it is able to find. The device is thereafter ready to start performing meter readouts and deliver Push Reports to all set recipients and by any selected protocol.

Setup_using_the_mobile_network.jpg

Setup with mobile network

Quick and simple metering with integrated statistics

Once meters have been installed, the CMe2100 can be configured to perform meter readouts by a selected time schedule. Meter data is compiled in a suitable report format and delivered to a receiving system. For a secure installation HTTPS or FTPS (or explicit FTPS) should be chosen. If the need for integration is low, the report can be as simple as an e-mail sent on a fixed schedule. However, CMe2100 can also send reports by SMS, upload them to an HTTP server, or as downloadable files to an FTP server.

Thanks to the device’s built-in M-Bus decoder, meter values can be delivered in a human readable format with correct precision and unit. The built-in database, storing all meter values locally in the CMe2100, provides a solid base for its system robustness. All Push Reports have intelligent retry mechanisms that automatically schedule retries for failed reports including all values for which previous transmissions have failed.

Metering_with_integrated_statistics.jpg

Metering with integrated statistics

Features

The CMe2100 has the potential to perform readouts and deliver meter values from all types of M-bus meters, regardless of manufacturer. This makes the device quick and easy to integrate into an existing M-Bus system.

Key features of the CMe2100 LTE G2 include:

  • An integrated M-Bus Master which can drive up to 16 unit loads, 16T. By using an M-Bus Master from Elvaco, the number can be extended to up to 256 unit loads (256T).

  • Customized meter value reports via HTTPS/HTTP, FTPS/FTP and e-mail.

  • Remote configuration of settings using the mobile networks.

Compatibility and extensions

Meter compatibility

The CMe2100 is compatible with a wide range of meters, including:

  • All types of M-Bus meters, regardless of manufacturer.

  • The following temperature and humidity sensors, manufactured by Elvaco: CMa10, CMa10w, CMa11, CMa11w, CMa12w, CMa20, CMa20w.

  • All ABB electricity meters equipped with IR interface.

Readouts of wired and wireless M-Bus meters

The CMe2100 can perform readouts of wired M-Bus meters, wireless M-Bus meters, or a combination of both. To read wireless M-Bus meters, the Metering Gateway will have to be combined with a wireless M-Bus receiver, for example Elvaco’s CMeX50.

Note

All extension devices (wireless M-Bus receivers and M-Bus masters) from Elvaco are equipped with IR interface to enable communication without any cabling.

Note

Elvaco offers box-build turnkey solutions, containing all necessary products preconfigured, directly from factory.

Parts overview

CMe2100_Parts_Overview_1.png
CMe2100_LTE_G2_overview.jpg

Buttons and indicators

  1. Serial number

  2. Push button

  3. M-Bus connector

  4. Antenna SMA connector

  5. IR interface

  6. Status LED (green)

  7. Error LED (red)

  8. Network LED (yellow)

  9. Blue LED (not used)

  10. SIM card holder

  11. Elvaco Play QR code

  12. USB master connector

  13. Power supply L

  14. Power supply N

LED indications

Table 117. Green and red LED

Green LED

RED LED

Product state

Visual

Permanently off

Permanently off

Power off or performing restart.
LED_indications_blank_.png
LED_indications_blank_.png

Permanently on

Permanently on

Power on.
LED_indications_green_3_.png
LED_indications_red_2_.png

1500 ms on / 100 ms off

Permanently off

Normal operation.
CMe2100_no_simcard_installed.png
LED_indications_blank_.png

1500 ms on / 100 ms off

Permanently on

Short circuit or overcurrent on M-Bus.
CMe2100_no_simcard_installed.png
LED_indications_red_2_.png

1500 ms on / 100 ms off

800 ms on / 800 ms off

No SIM card installed.
CMe2100_no_simcard_installed.png
LED_indication_red_1_.png

1500 ms on / 100 ms off

100 ms on / 1500 ms off

Not connected to network.
CMe2100_no_simcard_installed.png
CMe2100_not_connected_to_network.png

Table 118. Yellow LED

Yellow LED

Product state

Visual

Permanently off

Power off or ongoing restart
LED_indications_blank_.png

500 ms on / 500 ms off

Limited network service due to one of the following reasons:

  • No SIM card installed.

  • PIN code error.

  • Network search in progress.
CMe2100_limited_network_service.png

10 ms on / 990 ms off (only for CMe2100 G3)

GSM CS data call or GSM voice call in progress or established.
LED_Indications_yellow_1_.png

10 ms on / 1990 ms off

Ongoing data transfer.
LED_Indications_yellow_1_.png

10 ms on / 3990 ms off

Product registered on a network and no ongoing data transfer.
LED_Indications_yellow_1_.png

Table 119. Blue LED

Blue LED

Product state

Visual

800 ms on / 800 ms off

Reboot
LED_Blue_800-800.png

800 ms on / 800 ms off

Meter installation
LED_Blue_800-800.png

Configuration and administration

The CMe2100/CMi2110/CMi2130 has a built-in command parser, which analyses all the incoming commands executed by SMS or Telnet mode. By default, all the commands create a response from the product. The product will respond with OK if the command is completed successfully. If not, the product will respond with ERROR [Error description].

Each CMe2100/CMi2110/CMi2130 command corresponds to a security level. Depending on that level, a security code may be needed to execute certain commands. It is important to note that the security functionality is by default set to off and needs to be enabled. To learn more about configuring the security settings of the CMe2100/CMi2110/CMi2130, see Security features.

Configuration by SMS

For CMe2100 LTE G2 SMS commands must be encrypted before they are sent to the device to fulfill regulatory requirements. The device confirm the command with Encrypted Gateway responses. Recommended solution is to use Elvaco Play app, instead of sending SMS directly to your device. However, it is possible to encrypt the commands outside of Elvaco Play, see Encrypted SMS communication for information.

Tip

Configuration using the Elvaco Play app allows users to enter plain SMS commands directly in the app. Elvaco Play encrypts the communication before sending it to the product. This keeps the installation secure while maintaining the usability of previous product versions, where configuration could be performed using plain SMS commands from a mobile phone.

The CMe2100/CMi2110/CMi2130 is usually configured using a mobile phone. Each operation is then executed by sending an SMS to the phone number registered on the SIM card installed in the product.

By default, each SMS response from the CMe2100/CMi2110/CMi2130 will start with a line presenting the name and serial number of the product. The picture below illustrates what a command sent by SMS and a product response may look like.

CMe2100_Administration_using_SMS.png

Note

If passwords for security access levels is enabled, the SMS command must start with the correct security code, followed by a semicolon or a line break. For example:

2222;qset email

For more information, go to Setting passwords for security access levels

Configuration using Telnet

The CMe2100/CMi2110/CMi2130 can be configured by Telnet using any type of Telnet software.

Note

If the security functionality is enabled, the user will have to log in on the product, using the login command, before any other command can be executed.

Device information via NFC

CMe2100 LTE G2 provides a human-readable NFC status record. The information can be read from the NFC tag and contains product, firmware, device, communication key, and license information. The NFC status record includes the following information:

Table 120. Information accessed via NFC memory

Field

Description

Vendor

Elvaco AB.

Product

Device type, e.g. CMe2100LTEG2.

HW

Hardware version of the product, e.g. R1A.

FW

Firmware version installed on the product, e.g. 3.3.0.

SN

Product serial number, e.g. 0191000001.

Default comm key

Default communication key used for initial secure setup, e.g. abcdefgh12345678.

LC

Meter license capacity, e.g. 16.

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