> AT
OK
> AT+CFUN?
+CFUN: 1
> AT+CFUN=1
+CPIN: READY
OK
SMS Ready
Call Ready
> AT+CPIN?
+CPIN: READY
OK
> AT+COPS=0,0
OK
> AT+CEREG?
+CREG: 0,2
OK
> AT+CEREG?
+CREG: 0,5
OK
> AT+CGREG?
+CREG: 0,5
OK
> AT+CGREG?
+CREG: 0,5
OK
> AT+CPSI?
+CPSI: GSM,Online,262-01,0x972d,5559,79 EGSM 900,-83,0,24-24
> AT+COPS?
+COPS: 0,0,"Telekom.de 1nce.net",3
OK
> AT+SAPBR=3,1,"APN","iot.1nce.net"
OK
> AT+SAPBR=1,1
OK
> AT+SAPBR=2,1
+SAPBR: 1,1,"x.x.x.x"
OK
> AT+FTPCID=1
OK
> AT+FTPSERV="x.x.x.x"
OK
> AT+FTPUN="<username>"
OK
> AT+FTPPW="<password>"
OK
> AT+FTPGETNAME="<filename>"
OK
> AT+FTPGETPATH="/"
OK
> AT+FTPGET=1
OK
+FTPGET: 1,1
> AT+FTPGET=2,1024
+FTPGET: 2,50
01234567890123456789012345678901234
567890123456789
OK
> AT+FTPGET=2,1024
+FTPGET: 2,0
OK
+FTPGET: 1,1
> AT+FTPGET=2,1024
+FTPGET: 2,1024
01234567890123456789012345678901234
5678901234567890…..1234
OK
+FTPGET:1,0
> AT+SAPBR=0,1
OK
Preperation
For testing purposes, connect the SIM7000G (1529B05SIM7000G) to a computer. The commands used in this guide will be issued via the serial interface towards the modem. Please setup the specific hardware device that these AT Commands can be sent to the device serial interface. Further ensure that the 1NCE SIM is inserted correctly into the device.
Check Module Communication
Check that the module response to a basic 'AT' command. The device should return 'OK' as answer.
Check Functionality
Use 'AT+CFUN?' to check the functionality setting of the modem. '+CFUN: 1' should be returned, indicating that the modem is in the full operating mode.
Activate Functionality
If the prior command returns '+CFUN: 0', use 'AT+CFUN=1' to activate the full modem functionality.
Check SIM PIN
Use 'AT+CPIN?' to check if the SIM is ready to use. As the 1NCE SIM do not have a PIN set by default the modem should return '+CPIN: READY'.
If an error is returned, please check the SIM is inserted correctly or try the SIM in a smartphone.
PLMN Selection
Use 'AT+COPS=0,0' to set the Public Land Mobile Network selection of the modem to automatic. This will ensure that the modem will pick the best operator based on the currently available selection at the given location.
Network Registration
With 'AT+CEREG?' or 'AT+CGREG?' the network registration status can be queried denpendent on the used RAT (LTE or GSM). '+C(E/G)REG: 0,2' indicates that the device is still searching for a network. Use this command to query the status repeatedly until '+C(E/G)REG: 0,5' indicates that the modem is connected to a network and is roaming. 1NCE SIMs are always roaming as they do not have a home country set for the IoT use case. If the modem does not connect within a couple of minutes, please check the response code in the AT Command manual of the SIM7000G and possibly test the SIM in a smartphone to check the coverage.
Check Registered Network
With 'AT+CPSI?' the RAT and current status of the connection can be viewed. Futher, with 'AT+COPS?' it can be checked to which network the modem is currently attached. In the shown case the modem is attached to the Telekom Germany network.
Configure APN
Next, the APN needs to be set for the HTTP Data Session. Using the 'AT+SAPBR=3,1,"APN","iot.1nce.net"' command specifically for the SIM7000G HTTP mode the 1NCE APN can be set.
Activate PDP Data Session
The PDP data session needs to be activated by calling 'AT+SAPBR=1,1', which will activate PDP context with CID 1.
Check PDP Data Session
With 'AT+SAPBR=2,1' the status and IP of the PDP data session can be checked.
Set FTP Session Profile
Setup the FTP session by setting the PDP session id to the used index. In the example, profile '1' is used.
Set FTP Server IP
Set the IP address of the FTP server to which the modem should connect to.
Set FTP Server Username
Specify the username used to login into the FTP server.
Set FTP Server Password
Set the password needed to access the FTP server.
Set FTP Filename
List the filename of the file which should be downloaded from the FTP server.
Set FTP Server Path
Configure the path on the FTP where to find the file which should be downloaded.
Start FTP Download
Use 'AT+FTPGET=1' to start the download process. '+FTPGET: 1,1' indicates that the downloaded data is available.
Read Downloaded File
With 'AT+FTPGET=2,1024' parts of the downloaded file can be read in sections. '+FTPGET: 2,50' indicates the length of available data.
Deactivate PDP Data Session
The PDP data session can be closed with 'AT+SAPBR=0,1' if it is not needed anymore.
Wrap Up
This guide showed the basic setup of a SIM7000G with a 1NCE SIM to make a HTTP GET request.
For more details and documentation please refer to the AT Command manual of the SIM7000G.