Set Network Settings for iMetos 3.3 with HL7802 Modem in Terminal Program
Now follow the RED MARKED INSTRUCTIONS
- Unplug the Battery
- Put Jumper on J1
- Connect the station with USB cable to the PC
- Start the Terminal Program (TeraTerm or PI Service Terminal)
- Plug in the Battery
- Select the correct COM Port
- GO TO MAIN MENU
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USER: \ MAIN MENU
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(1) SYSTEM
(2) SENSORS
(3) MODEM
(4) FLASH
>> Select...
- Press (3) MODEM to go to the Modem menu as shown below
>> Chosen function: MODEM
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USER: \ MAIN MENU \ MODEM
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(1) MODEM SETTINGS
(3) SEND STATION DATA
(4) GET GPS
(5) GET CONF SMS
(6) Download FW
(7) Download APN list
(ESC) BACK
- Press on (1) MODEM SETTINGS to go to the modem settings menu as show below
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USER: \ MAIN MENU \ MODEM \ MODEM SETTINGS
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(1) GET MODEM INFO
(2) SEND IDENTIFICATION SMS
(3) UNLOCK SIM CARD (PIN CODE)
(4) SIGNAL QUALITY GRAPH
(5) APN OF CUSTOMER
(8) SET PREFERRED NETWORK TYPE
(9) SET NETWORK SCAN METHOD
(A) Check available APNs
(B) DISABLE NETWORK SETTINGS
(D) DISABLE APN USE
(E) ENABLE APN USE
(ESC) BACK
- Press (8) SET PREFERRED NETWORK TYPE to set a preferred network
>> Chosen function: SET PREFERRED NETWORK TYPE
-- Loaded network settings in global RAM object --
-----------------------------------
Network settings enabled: 1 True
Preferred network: 2 CAT-M1
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USER: \ MAIN MENU \ MODEM \ MODEM SETTINGS \ SET PREFERRED NETWORK TYPE
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(1) NB-IoT
(2) CAT-M1
(3) GSM/2G
(ESC) BACK
- Press (3) GSM/2G to select GSM/GPRS/2G network and then (Enter) key to save that selection in non-volatile
memory. If you want to cancel and select a different network, press Escape key. This action times out in 2 seconds. If you do not press either Enter or Escape key, the operation is automatically cancelled upon timeout.
>> Chosen function: GSM/2G
You have 2 options:
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(Enter) <- confirm GSM/2G preferred Network selection
(Esc) <- cancel & exit from this menu item (without saving)
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-- New preferred network setting saved --
-- Loaded network settings in global RAM object --
-----------------------------------
Network settings enabled: 1 True
Preferred network: 3 GSM/2G
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USER: \ MAIN MENU \ MODEM \ MODEM SETTINGS \ SET PREFERRED NETWORK TYPE
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(1) NB-IoT
(2) CAT-M1
(3) GSM/2G
(ESC) BACK
- Press (ESC) key to go back to the Modem Settings menu.
>> MOVE TO PREVIOUS MENU
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USER: \ MAIN MENU \ MODEM \ MODEM SETTINGS
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(1) GET MODEM INFO
(2) SEND IDENTIFICATION SMS
(3) UNLOCK SIM CARD (PIN CODE)
(4) SIGNAL QUALITY GRAPH
(5) APN OF CUSTOMER
(8) SET PREFERRED NETWORK TYPE
(9) SET NETWORK SCAN METHOD
(A) Check available APNs
(B) DISABLE NETWORK SETTINGS
(D) DISABLE APN USE
(E) ENABLE APN USE
(ESC) BACK
- Then press (9) SET NETWORK SCAN METHOD to select Network Scan Method
>> Chosen function: SET NETWORK SCAN METHOD
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USER: \ MAIN MENU \ MODEM \ MODEM SETTINGS \ SET NETWORK SCAN METHOD
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(0) Modem Auto
(1) System Auto
(2) Fixed
(ESC) BACK
- Press (2) FIXED to select the Fixed network scanning method and quickly press (Enter) to save. You can press
Escape instead to cancel. There is a 2 seconds timeout which automatically cancels the operation.
>> Chosen function: Fixed
You have 2 options:
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(Enter) <- confirm Network scan mode set to Fixed
(Esc) <- cancel & exit from this menu item (without saving)
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-- New network scan method setting saved --
-- Loaded network settings from global RAM object --
-------------------------------------
Network settings enabled: 1 True
Network scan method: 2 Fixed
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USER: \ MAIN MENU \ MODEM \ MODEM SETTINGS \ SET NETWORK SCAN METHOD
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(0) Modem Auto
(1) System Auto
(2) Fixed
(ESC) BACK
- Press (ESC) to go back to the Modem Settings menu and (ESC) again to go to the Modem main menu. If you are taken back to the Main menu because the modem is still searching for network, press (3) to go to Modem main menu
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USER: \ MAIN MENU \ MODEM
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3
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USER: \ MAIN MENU
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(1) SYSTEM
(2) SENSORS
(3) MODEM
>> Chosen function: MODEM
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USER: \ MAIN MENU \ MODEM
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(1) MODEM SETTINGS
(3) SEND STATION DATA
(4) GET GPS
(5) GET CONF SMS
(6) Download FW
(7) Download APN list
(ESC) BACK
- From here, press (3) SEND STATION DATA to upload data to the server and after your pressed 3 REMOVE THE JUMPER FROM J1
>> Chosen function: SEND STATION DATA
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USER: \ MAIN MENU \ MODEM \ SEND STATION DATA
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- WAIT FOR:
> Starting modem process
---- INFO: Success. ----
>> Success
>
>
>> Turning modem off
>
AT+KSREP=1
OK
AT+CPWROFF
+SIM: 0
+KSUP: 0
When you see the violet highlighted text you know your settings were successful!
About the Network Scanning Methods:
- Fixed method = only scans for the previously selected Preferred Network without trying any
other kind. - System Auto = method scans for the previously selected Preferred Network and only after it fails
to connect tries the other two types of networks. If you selected GSM preferred and the system
cannot connect to a GSM network, after the timeout the system will scan for CAT-M networks and
then NB-IoT if that fails too. - Modem Auto = method adds a preferred network list to the modem beginning with the
previously selected Preferred Network and then the other two. It lets the modem automatically
handle network registration. This method is like a shot in the dark and heavily depends on the
modem firmware version and the networks available in the area. We do not have much confidence
in this method but it would work in the best case scenario where all three kinds of networks are
available (GSM, CAT-M and NB-IoT)
Disabling and Enabling APN
On some networks it is not necessary to use an APN to upload data to the server. You can try
disabling APN in the modem settings and if it works, the process runs much faster. If it does not
work, you can re-enable the use of APN and the configured APN will be used.