Related Manuals for EMU Professional II Lora
Summary of Contents for EMU Professional II Lora
- Page 1 Manual EMU Professional II Lora Document Reference: 1490 Version: 2.5 Date: 19.04.2024...
-
Page 2: Table Of Contents
Manual EMU Professional II Lora Inhaltsverzeichnis 1 LoRa Interface IT Environment .......... - Page 3 Version Revision Date Token Changes V1.0 01.07.2021 fbo, met Creation of Document V1.1 22.02.2022 fbo, met Fixed time interval V1.2 19.04.2022 Fixed unit and resolution V1.3 11.05.2022 Rework of Doc.Ref numbers. Same document in different language no longer has a different Doc.Ref number V1.4 13.06.2022...
-
Page 4: Lora Interface
Loramodule. ‚ A reparametrization is only possible via the meter display or via a Lora downlink message. ‚ The EMU Professional II Lora autonomously synchronizes its internal clock at least once per day via a regularly scheduled DeviceTimeReq. -
Page 5: Hardware
‚ The EMU Professional II 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 EMU Professional II Lora. If the recommended distances are adhered to, the meter continues to communicate with the Lora server. -
Page 6: Exampleintegration In The Things Network
ExampleIntegration in The Things Network The EMU Professional II Lora is available for selection on “The Things Network” as a predefined meter. The JoinEUI you need to provide is always 10 2C EF 00 00 00 00 00, the DevEUI and AppKey are individual for each meter. -
Page 7: Operation
Manual EMU Professional II Lora Operation The following sub menus explain the settings for the EMU Professional II Lora. Note: For further documentation please consult the document “User Manual EMU Professional II ” Doc. Ref: 1451 LoRa DevEUI A long press of the “Arrow Down” button changes the subpage. -
Page 8: Lora Joinstatus 2/4
Manual EMU Professional II Lora 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... -
Page 9: Lora Appskey (Only With Abp)
Note: After a successful change of the JoinMode you need to provide your LoRa server with the new keys. OTAA Over the Air Activation The Lora interface of the EMU Professional II LoRa can use OTAA. The communication module arranges encryption with the Lora network server and joins the network. There can only exist one 1:1 connection between meter and Lora network. -
Page 10: Lora Antenna
A second long press (>2s) of the SRVC button finalizes the reset and exits the edit mode automatically. The successful reset is receipted with a short flashing of the display backlight. Note: A reset of the LoRa module does not change or impair any measurements, meter readings or other measurement relevant processes of the EMU Professional II LoRa. -
Page 11: Join Request
Join Request If no Join request has occurred the EMU Professional II Lora regularly tries to connect to a Lora network. These Join requests occur randomly in a ˘ 10 min period to counteract bandwidth problems if multiple meters are in the same network. -
Page 12: Downlink Messages
Manual EMU Professional II Lora Downlink Messages The EMU Professional II Lora may acknowledge every received downlink transmission. Configuration of Measurement Sending ‚ You can configure which measurement registers should be sent in what interval via a downlink message. ‚ Only measurements from the data logger and logbook are available for read out. -
Page 13: Example For 1 Minute Interval Adjustment
Manual EMU Professional II Lora Byte Description 00010000 not defined 00000000 not defined 00100000 not defined 00000000 not defined 01000000 not defined 00000000 not defined For a list of possible register IDs consult the MeasurementRegister Note: If only Byte 0 + 1 + configByte + CRC8 are sent, the transmission interval and the configuration flags are changed accordingly. -
Page 14: Uplink Message
TimeReq requests. These 3 time requests happen in a 3 minute time frame. Note: The operator of the Lora infrastructure must ensure that the meter can synchronize its time regularly for proper operation of the EMU Professional II Lora. For this the optimal solution is the Lora DeviceTimeReq command. -
Page 15: Structure Of Uplink Packages
Manual EMU Professional II Lora Structure of Uplink Packages The bit order is LSB, the byte order is LittleEndian. The four first bytes are always the timestamp from the data logger. First Telegram after Join with a Lora Server fPort: 100 Length: 29... -
Page 16: Defaultuplink
Manual EMU Professional II Lora DefaultUplink After first start up or after resetting to factory settings the meter will send the following telegram: fPort: 1 Length: 27 Interval: every 15 minutes the most current entry from the meter’s data logger. -
Page 17: Measurementregisters
Manual EMU Professional II Lora MeasurementRegisters The energy measurements and technical information is read out of the data logger of the EMU Professional II Lora. These measurements are stored at the end of a measurement period (15 minutes). The OBIS codes are shown in their simplified version. -
Page 18: Status Codes
Manual EMU Professional II Lora Type Description Unit Resolution 0xF3 uInt16 Current transformer primary 0xF4 uInt16 Current transformer secondary 0xF5 uInt16 Voltage transformer primary 0xF6 uInt16 Voltage transformer secondary 0xF7 uInt8 Meter type 0xF8 uInt32 MID year of certification 0xF9... -
Page 19: Crc8 Checksum
Manual EMU Professional II Lora CRC8 Checksum The checksum is based on the following polynomial: x^8 + x^2 + x^1 + x^0 (CRC8CCITT) Example implementation in Javascript: function crc8_encode(data) { var xorOut = 0x0000; var table = [ 0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B,... - Page 20 EMU Metering GmbH EMU Electronic AG Friemarer Str. 38 Jöchlerweg 2 99867 Gotha CH6340 Baar Deutschland Switzerland Phone: +49 (0)3621 510 40 70 Phone: +41 (0)41 545 03 00 hello@emumetering.de helpdesk@emuag.ch www.emumetering.de www.emuag.ch...
Need help?
Do you have a question about the Professional II Lora and is the answer not in the manual?
Questions and answers