SOFTLINK NB-K868 Manual
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SOFTLINK NB-K868 Manual

Wireless communication system nb-iot
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WIRELESS COMMUNICATION SYSTEM
NB-IoT
NB-K868
Revision 1.0
SOFTLINK s.r.o., Tomkova 409, 278 01 Kralupy nad Vltavou, Czech Republic
Phone.: +420 315707111,
e-mail:
sales@softlink.cz,
www.softlink.cz

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  • Page 1 WIRELESS COMMUNICATION SYSTEM NB-IoT NB-K868 Revision 1.0 SOFTLINK s.r.o., Tomkova 409, 278 01 Kralupy nad Vltavou, Czech Republic Phone.: +420 315707111, e-mail: sales@softlink.cz, www.softlink.cz...

  • Page 2: Table Of Contents

    2 Technical parameters overview 3 Configuration of the NB-K868 module 3.1 Setting of NB-K868 module parameters by configuration cable .....
  • Page 3 ....” Set of NB-K868 module components with stick antenna ......

  • Page 4: Introduction

    (AMR) in form of radio-messages of NB-IoT service (”INFO” messages). The NB-K868 module can by used for remote reading up to 20 watermeters placed in its radio-reach (that is up to hundreds meters). Each watermeter transmits the messages with a short fixed period (e.g. iPERL every 15 seconds).

  • Page 5: Hardware Features And Power Supplying

    The NB-K868 module supports bi-directional communication and it is able to receive through the network messages of ”SET” type, generated by remote computer. These messages can be used for setting of module parameters from the remote server.

  • Page 6: Technical Parameters Overview

    Technical parameters overview Overview of NB-K868 module technical parameters is shown in the Table1 below. Table 1: Overview of NB-K868 module technical parameters RF subsystem parameters Frequency band 800 MHz (RX/TX) 791-821 / 832-862 Frequency band 850 MHz (RX/TX) 869-894 / 824-849...

  • Page 7: Configuration Of The Nb-K868 Module

    Configuration of the NB-K868 module Configuration parameters of the NB-K868 module can be displayed and changed from the common computer (PC) by one of these methods: - with using of USB-CMOS” converter and configuration cable connected to the module; ”...

  • Page 8: Setting Of Nb-K868 Module Parameters By Configuration Cable

    Setting of NB-K868 module parameters by configuration cable In following part of the document there is a description of these parameters of the NB-K868 module, that can be displayed and examined from PC connected to the module by configuration cable. Some of the parameters can be changed by configuration commands entered...
  • Page 9 SW version 1.01, date Apr 7 2021 mon# List of all configuration commands (”HELP”) can be displayed by entering of ”?” command into the command line and pressing of ENTER” key. The following list of commands will display in the terminal window: ” NB-K868...
  • Page 10 [index] [value] : Set WMBUS DIF/VIF 1, 00 00 - water in m3 dib2 [index] [value] : Set WMBUS DIF/VIF 2, 00 00 - disabled diba [index] [value] : Set WMBUS DIF/VIF for alarm flags alrb [index] [type] [value] : Set WMBUS alarm flags bits . . . NB-K868...
  • Page 11 The command ”sendp” can be used for immediate transmitting of series of standard messages with 1-minute interval. This command can be used for checking of radio signal availability during the system installation. It could enable checking of connection also after closing of mounting rack, or after leaving of watemeter shaft. Number of NB-K868...
  • Page 12 ” Current operating configuration can be displayed by using of ”show” command (see paragraph 3.1.1): cfg#show Current operating configuration can be rewrite the to FLASH memory by using of ”write” command: cfg#write Writing config ... OK, version 13 mon# NB-K868...
  • Page 13 ”receiving window” in seconds radar list of watermeters within module reach (”RADAR” mode) clradar emptying the radar table hist setting of reading period for ”history” mode hdata displaying records in memory of historical readings smask setting of content (selection of transferred information) NB-K868...
  • Page 14 As evident form the example, during the receiving window the module received messages from six watermeters. Each record contains watermeter serial number (id), radio-signal strength in dB (rssi) and message receiving time (time). Stored values come from the first received message from the watermeter in the receiving window. NB-K868...
  • Page 15 In the ”history” mode the module receives readings from watermeters with higher frequency than the data are broadcasted. Reading records are stored to the ”history” table that is emptied after broadcasting. Current records in ”history” table can be browsed by using of ”hdata” command. Example: NB-K868...

  • Page 16: Mask")

    All watermeters, that the module reads, must have the data encrypted with the same key. The ”Set Meter ID” variable serves for setting of list of watermeters, that is intended to be read by the NB-K868 module. Each record to the list could be created by using of ”sid [index] [value]” command, where meter ID (serial number) is linked with meter index (0 - 9).
  • Page 17 The ”Set Meter ID” variable serves for setting of list of watermeters, that is intended to be read by the NB-K868 module. Each record to the list could be created by using of ”sid [index] [value]” command, where meter ID (serial number) is linked with meter index (0 - 9).
  • Page 18 - type ”0” = ”Leak” - state of uninterrupted flow, indicating leakage - type ”1” = ”Burst” - state of longer lasting overflow limit, indicating breakdown - type ”2” = ”Battery” - low voltage of device battery - type ”3” = ”Back Flow” - reverse direction of measured flow NB-K868...
  • Page 19 Access Point Name (APN) sess maximum session time testip setting of IP-address for ICMP ping tests tconn connection setup timeout setting of time zone (UTC + n) time real time (RTC) displaying/setting (hh:mm:ss) date real time (RTC) displaying/setting (RR.MM.DD) NB-K868...
  • Page 20 Number of UDP port can be pre-configured by using of ”sport” command. The UDP port number should correspond with the remote reading application port number. Example of setting of UDP port number to value ”2000” and follow-up checking of the setting: NB-K868...
  • Page 21 - APN) should be entered to the module configuration by using of ”apn” command. APN is assigned by GSM operator. Setting of APN can be deleted by entering of ”.” value (dot). Example of setting of APN-name to ”cms.softlink” value: cfg#apn cms.softlink APN changed from ’’...
  • Page 22 Setting of both parameters should be reasonable compromise between energy consumption and reliability of message delivery. As the NB-K868 module can broadcast not only current values, but also historical” values from internal memory, ”...
  • Page 23 In the ”Conf. version” row there is a current version (number) of configuration set, that increases with each storing of the configuration into the FLASH memory. The number is cleared by erasure of FLASH memory. In the ”SW version” row there is a module software version and release date. NB-K868...

  • Page 24: Setting Of Parameters By Using Of Optical Converter

    To display a list of parameters, click on the ”Walk” button in the ”WACO OptoConf” program window. A preview of the table with the list of parameters of the NB-K868 module is shown in the figure 3. Figure 3: Table of list of NB-K868 module parameters Most of module parameters can be configured also by using of...

  • Page 25: Setting The List Of Read Devices

    - entering of identifiers and encryption keys of read devices - sending of RESET command to the module As the SOFTLINK Configurator” application is continuously developed and improved, the screen previews of ” NB-K868 module configuration forms can vary in time.

  • Page 26: Remote Setting Of Module Parameters Through The Nb Iot Back Channel

    Overview of module configuration parameters Overview of configuration parameters that can be used for user settings of the NB-K868 module is shown in the Table below. The parameters are presented in the same order as they appear in the List of all configuration parameters (see paragraph 3.1.1).

  • Page 27: Overview Of Nb-K868 Module Configuration Parameters

    Table 2: Overview of NB-K868 module configuration parameters Item Name Type Description Default. Timezone number Time zone (time from UTC) Server IP code target server IP-address Ping IP code IP address for ICMP tests Server port number target application port number...

  • Page 28: The Nb-K868 Module Data Messages

    3.5.1 Structure and types of data messages The NB-K868 module is intended for wireless reading of ”smart” category watermeters and sending of read data to the superior system via NB-IoT services of GSM operator. NB-IoT service utilizes for transfer of messages packets (datagrams) of UDP protocol (UDP = User Datagram Protocol), that is a transport layer of the Internet Protocol (IP).
  • Page 29 Sequence No unique message number Temperature Processor temperature in 0.1 C Voltage Battery voltage in mV 3765 RSSI Last RSSI value Input value 1 Current status of watermeter 1 1996 Input value 2 Current status of watermeter 2 12887 NB-K868...
  • Page 30 TimeStamp and data of the second historical reading Timestamp Time of reading (Epoch Unix Time Stamp) 1549035554 Input value 1 Current status of watermeter 1 1999 Input value 2 Current status of watermeter 2 12893 Input value 3 Current status of watermeter 3 9596 NB-K868...

  • Page 31: Encryption Of Messages

    3.5.3 Description of TRAP message Messages of TRAP type are used for immediate transmitting of information about event detected by the NB-K868 module. The information contains type of detected event (e.g. ”Processor temperature exceeded limit”) that can be followed by one or several variables with parameters of the event (e.g. ”Temperature” and ”Temperature limit”).
  • Page 32 ”Message type” (OID 63 MESSAGE TYPE), that carries an information, whether the type of message is INFO (value 6), or TRAP (value 5). Other variables follow in same order (and structure), as in unencrypted message (starting with seventh variable to the end of message). NB-K868...

  • Page 33: Operational Conditions

    Operational conditions This section of the document describes basic recommendations for transportation, storing, installation and operation of NB-K868 radio modules. General Operation Risks The radio modules are electronic devices power-supplied by internal batteries. The modules read counters or registers of the connected consumption meters.

  • Page 34: The Condition Of Modules On Delivery

    As NB-IoT services are charged by GSM operator, it is recommended to insert SIM and activate the service just before module installation. Safety precautions Warning! Mechanical and electrical installation of the NB-K868 module can be provided only by a person with necessary qualification in electrical engineering. Environmental protection and recycling The equipment contains non-rechargeable lithium battery.

  • Page 35: Set Of Nb-K868 Module Components With Stick Antenna

    Figure 7: Set of NB-K868 module components with stick antenna In the figure there is displayed the detail of NB-K868 module printed circuit board with configuration connector with the location of the configuration connector (bordered in red), the SIM card holder (marked in purple), the NB-IoT uplink antenna connector (marked in blue), the 868 MHz reveiver antenna connector (marked in light blue) and the battery switch (marked in yellow) on the opposite side of the board.
  • Page 36 The radio-signal conditions can be estimated empirically on the base of previous experience, or examined by measuring of the signal strength by the reference transmitter/receiver. NB-K868...

  • Page 37: Module And Meter Replacement

    Put the module parts back together by mounting of the cap on the module base. After the dismantling mark the module as dismantled” and fill in the relevant documentation, prescribed for this ” situation by the internal rules. If possible, arrange deactivation of the module in the database of remote reading system immediately. NB-K868...

  • Page 38: Functional Check Of The Module

    The risk of premature battery discharge could be eliminated by respecting the instructions described in para- graph 4.1.2. Troubleshooting Possible causes of module failures If during operation of NB-K868 module some anomaly, malfunctions or other troubles are recognized, the possible causes of the failures can be classified by following categories: 5.1.1 Power supplying failures The module is supplied by electrical power from the long-life internal battery.
  • Page 39 ID (serial number) in the table of read watermeters (see paragraph 3.1.5 Commands for communication with watermeters”); ” check receiving of watermeter messages in ”RADAR” mode with the length of receiving window at least 45 seconds (see paragraph 3.1.5 Commands for communication with watermeters”); ” NB-K868...

  • Page 40: Troubleshooting Procedure

    To identify a reason of device failure or any anomaly in its operation follow this procedure: 1. No data are available from any watermeter read by the NB-K868 module. In this case it is recommended to check functionality of the module subsystems in following order: check correctness of setting of the module in the central system database;...

  • Page 41: Additional Information

    This manual is focused on description, parameters and configuration options of NB-K868 RF-modules, designed for operation in NB-IoT network, that are a part of the Softlink’s wacoSystem product family. More information about all modules of ”NB” series (NB-IoT), as well as about WS868 (Sigfox), WM868 (WACO), or WB169 (Wireless M-BUS) series of modules can be found on the manufacturer website: www.wacosystem.com...

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