LoRaWAN Interface

You are looking for LoRaWAN interface for the Hyperion

Here you can find a LoRaWAN interface for the Hyperion

General description of the LoRaWAN interface

• The Hyperion Lora is compatible to LoraWAN ě 1.0.3 (Class C).
• The Hyperion Lora permanently saves the needed parameters for Lora and its configuration on the Lora­module.
• A re­parametrization is only possible via the meter display or via a Lora downlink message.
• The Hyperion Lora autonomously synchronizes its internal clock at least once per day via a regularly scheduled DeviceTimeReq.
• The Hyperion Lora determines and optimizes its own transmit parameters (data rate, SF­factor etc.).
• The default meter uses an internal antenna for communication. A meter with an external antenna is only available through special request.

Hardware

The Lora interface of the Hyperion LoRa is based on the Lora transmission standard. This means the meter can reliably transmit data over large distances in environments without permanent communication.
To ensure a stable and high­performance link to the Lora gateway the meter constantly adapts the optimal transmit and receive parameters independently. For a easier integration into the network you can check the status of the network connection on the display.

• Frequency: EU 863870MHz
• Typ:  Class C Device

-  Two-­way communication.
-  The Lora interface is available anytime for downlink messages (Class C).
-  The interface transmits with a signal strength of 14dbm. 

•  To connect an external antenna to the SMA-­connector, use an antenna with a SMA­-plug. Note that the option for the external antenna must be activated on the meter if an external antenna is attached.

Note on Installation

Make sure to disconnect all current and voltage connections before installation of the external antenna!

Make sure that the SMA connector is fitted correctly. The maximum torque for the union nut must not exceed 1Nm.

If you are using an external antenna the option “external” in the settings menu “LoRa Antenna” must be set. Otherwise the meter will continue to send on the internal antenna

Start of Operation

Every meter is shipped with:

• Join-Modus: OTAA
• DeviceEUI (starting with 10 2C EF) 
• Appkey
• JoinEUI (formerly: AppEUI) (10 2C EF 00 00 00 00 00) 

The Dev­-EUI and the AppKey can be read out on the display, the JoinEUI (formerly: AppEUI) is 10 2C EF 00 00 00 00 00 on every meter.

•  Make sure that the meter is connected correctly (Phase and line sequence, direction of flow of energy).
• Make sure that the current and voltage transformer ratios of the converter counter are configured correctly
• The Hyperion Lora is designed for fast detection of potential problems in connection range or throughput.
• Repositioning of the Lora gateway is possible after the installation of the Hyperion Lora. As long as the recommended distances are adhered to, the meter continues to communicate with the Lora server
• Operation of the meter with a SMA-­connector is only allowed with an attached antenna.

LoRa JoinStatus 2/4

Joined: If the meter is connected to a Lora network.
Lst. Uplink: ACK/NACK (with or without acknowledge)
Timestamp of the last Uplink

LoRa Status 3/4

RSSI: The received field strength
SNR: Signal to noise ratio
SPF: Spreading factor BW: Bandwidth

LoRa JoinMode 4/4

OTAA or ABP
Lst. Downlink: ACK/NACK (with or without acknowledge)
Timestamp of last Downlink

LoRa AppKey (only with OTAA)

A short press of the SRVC button shows the current AppKey. Using the “Arrow right” button you can generate a new AppKey.

A second short press (<2s) of the SRVC button exits the edit mode without changing the AppKey.

A second long press (>2s) of the SRVC button finalizes the generation of the new AppKey and exits the edit mode automatically. The successful generation of a new AppKey is receipted with a short flashing of the display backlight.

The newly created AppKey can now be read out by a short press of the SRVC button. 

LoRa DevAddr (only with ABP) 

A short press of the SRVC button shows the current DevAddr. Using the “Arrow right” button you can generate a new DevAddr.

A second short press (<2s) of the SRVC button exits the edit mode without changing the DevAddr.

A second long press (>2s) of the SRVC button finalizes the generation of the new DevAddr and exits the edit mode automatically. The successful generation of a new DevAddr is receipted with a short flashing of the display backlight.

The newly created DevAddr can now be read out by a short press of the SRVC button.

LoRa NwkSKey (only with ABP) 

A short press of the SRVC button shows the current NwkSKey. Using the “Arrow right” button you can generate a new NwkSKey.

A second short press (<2s) of the SRVC button exits the edit mode without changing the NwkSKey.

A second long press (>2s) of the SRVC button finalizes the generation of the new NwkSKey and exits the edit mode automatically. The successful generation of a new NwkSKey is receipted with a short flashing of the display backlight.

The newly created NwkSKey can now be read out by a short press of the SRVC button.

LoRa JoinMode (available with OTAA and ABP)

You can set the parameter by briefly pressing the SRVC button. Use the "arrow to the right" to select the desired JoinMode.

A second short press (<2s) on the SRVC button exits the editing mode without changing the JoinMode.

A second long press (>2s) on the SRVC button closes the new JoinMode and exits edit mode automatically. Successful saving is acknowledged with a brief flash of the display light.

OTAA-Over the air activation

The Lora interface of the Hyperion energy meter can use OTAA. The communication module controls the encryption with the Lora network server and joins the network. There can only be a 1:1 connection between the meter and the Lora network. This type of communication offers increased security against interference by third parties.

LoRa Join

Performing a (re-)join.
You can set the parameter by briefly pressing the SRVC button. You can select "Reboot" with the "Arrow right".

A second short press (<2s) on the SRVC button exits edit mode without changing anything.

A second long press (>2s) on the SRVC button starts the (re)join and exits edit mode automatically. Successful saving is acknowledged with a brief flash of the display light.

LoRa-Test

Send an immediate uplink message with the configuration of slot 1 to the LoRa network.

You can set the parameter by briefly pressing the SRVC button. The uplink is triggered with the "arrow right".

A second short press (<2s) on the SRVC button exits edit mode without changing anything.

A second long press (>2s) on the SRVC button starts the uplink and exits edit mode automatically. Successful transmission is acknowledged with a brief flashing of the display light.

LoRa antenna

Enables easy switching between internal and external antenna.

You can set the parameter by briefly pressing the SRVC button. Use the "arrow right" to select the antenna.

A second short press (<2s) on the SRVC button exits the editing mode without changing the antenna configuration.

A second long press (>2s) on the SRVC button saves the selection and exits edit mode automatically. Successful saving is acknowledged with a brief flash of the display light.

LoRa-interface

Enables a soft reset (SoftReset) of the LoRa module or resetting to factory settings (Factory RESET).

You can set the parameter by briefly pressing the SRVC button. You can select the reset with the "Arrow right".

A second short press (<2s) on the SRVC button exits the editing mode without changing anything.

A second long press (>2s) on the SRVC button completes the reset and exits edit mode automatically. The successful reset is acknowledged with a brief flash of the display light.

Join request

As long as no join request has occurred, the Hyperion regularly attempts to establish a connection to a Lora network. These join requests occur randomly over a period of ˘ 10 minutes to counteract bandwidth problems when several meters are in the same network.

Testing whether the Lora module is still connected to the Lora network

The Hyperion Lora checks its connection to the Lora network at least once a day. You can configure the data packets so that an ACK is requested for each uplink transmission. If this option is set, the meter can react much faster to a connection interruption.

If the Hyperion Lora

• does not receive an ACK to its uplink messages within 24 hours,
• or the connection check (once every 24 hours) for continued connection to the Lora network fails, it automatically starts a new (re)join process.

This check for continued connection to the Lora network can also be done via time synchronization (DeviceTimeReq) or an uplink message to a dedicated fPort with an ACK.

Downlink messages

The Hyperion Lora energy meter can acknowledge every downlink transmission received.

Configuration of the measured value transmission

• You can configure which measured values are to be sent at which interval via a downlink message.
• Only measured values from the data logger and logbook are available for readout.
• There are 10 "slots" available for this configuration, which are represented by the fPorts 110.
• Only 10 measurements can be saved per slot.
• Lower slots have a higher priority.
• The following measurement registers are transferred by default:
  - See Default-Uplink

• You can configure the interval at which the data is transmitted. The interval can be set from 1 minute to a maximum of 67,500 minutes (45 days).
• Do you want your Lora network to send an ACK for each transmission received from the meter? Yes/No?
• If Yes: If the network does not acknowledge the packet, the meter will resend the packet.
• Select whether this profile is active or not.

Description of the downlink message

The BitOrder is LSB, the ByteOrder is LittleEndian.

Configuration of which registers are sent.

Length in bytes: 4 bytes 13 bytes fPort: 110

 

 

 

Configuration flag byte

 

 

 

A list of possible register-IDs can be found in the Measurement tab

Example for 1-minute-interval-setting

var data =[0x01, 0x00, 0x08, 0x53];

0x01 0x00 -> 1 minute interval

0x08 -> No ACK, no re-join, port is active.

0x53 -> CRC-8 checksum

Example of register transfer

This example shows the required data downlink for an uplink of the energy registers "Active & Reactive Energy import & Export Tariff 1&2" every minute.

var data = [0x01, 0x00, 0x0A, 0x01, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x83]

0x01 0x00 -> 1 minute interval

0x0A -> ACK, no re-join, port is active.

0x01 -> Timestamp

0x03 - 0x0A -> Register selected for uplink.

0x83 -> CRC-8 checksum

Uplink-message

The following messages can be sent from the Hyperion Lora:

• Join / Rejoin request
• Time synchronization
• Monitor network membership
• Sending measurement registers

Join / Rejoin

The Hyperion Lora performs a join / rejoin with a Lora network.

DeviceTimeReq / Time synchronization

In normal operation, the Hyperion Lora attempts to determine the current time and date regularly (min. once every 24 hours, max. once per hour). The meter sets its internal clock according to the following criteria:

• If the old time and the new time differ by less than 2 seconds, the meter accepts the new time as time synchronization and sets the new time.
• If the difference is more than 2 seconds, the meter queries the current time at least 3 more times to ensure that the new time is correct. to ensure that the new time is correct.

After the start or when the internal buffer for the RTC is used up, the meter checks the time with at least 3 DeviceTimeReq requests. These 3 time queries take place in a time frame of 3 minutes.

Sending of measured values

• The Hyperion Lora transmits all required registers directly from its data logger via Lora without changing the data.
• The requested measurements are read out from the data logger at the due date.
• The transmission must therefore start and end in the transmission interval.

Example for a transmission interval of 15 minutes:

• 09:00:02 o'clock: The communication module Lora reads the last data log entry. The values stored there are from 09:00:00.
• 09:00:03 09:14:59: The counter tries to transmit the data over the Lora network.
• 09:15:02 o'clock: The Lora communication module reads the last data logger entry. The values stored there are from 09:15:00.

Construction of uplink packages

The bit order is LSB, the byte order is LittleEndian. The first four bytes are always the time stamp of the data logger Logger.

First telegram after join with a Lora-server

fPort: 100 Length: 29

Structure:

 

 

 

 

 

 

 

 

Example of a package:

#System time
#Serial number 22150405
#Meter type Converter Counter -> 2
#Current transformer ratio 5:5
#Voltage transformer ratio 100:100
#Mid year of certification 2022
CRC should be 0x65

 

 

 

 

 

 

 

 

Default Uplink

After the first start or after the reset to the factory settings, the meter sends the following telegram:

Structure:

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The energy measurements and technical information are read out from the data logger of the Hyperion energy meter Lora. These measurements are stored at the end of a measuring period (15 minutes).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 ID                Typ            Description                                        Unit                       Resolution

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The possible values of the error code can be found in the chapter Status Codes

Status Codes

 

 

 

 

 

Documentation Links

You can find the links for further documentation on Hyperion Energy Meter here : 

• Hyperion Energy Meter
• Data Sheet for Hyperion
• Operating Instructions for the Hyperion
• LoRaWAN Interface
• Hyperion Dataconverter in .js
• CE EU Declaration of Conformity Hyperion