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BGS2T HTTP GET txt-file | Telit Cinterion IoT Developer Community

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albrecht15's picture
albrecht15

November 14, 2017 - 6:32pm, 2355 views

Hello,
I am currently trying to download a .txt-file via HTTP GET from http://httpbin.org/robots.txt with an BGS2T-Modem. I have also tried to connect with http://example.com, but I could net get neither an URC response from any server nor that data is ready to receive...

The following code shows response of the modem with echo of the used commands, where the actual command is on the left side and the response is on the right:

AT&F0							OK
AT+CFUN=1,1						OK
							NO CARRIER
ATI1							Cinterion BGS2-W REVISION
                                                            01.301 A-REVISION
                                                            01.000.03 OK
ATE1							OK
AT+CMEE=2						OK
AT+CPIN=9336						OK
AT+CGATT=1						OK
AT+CGDCONT=1,"IP","a1.net"				OK
AT+CGACT=1,1						OK
AT^SCFG="Tcp/WithURCs","on"				^SCFG:"Tcp/WithURCs",
                                                           "on"  OK
AT^SICS=1,conType,GPRS0				        OK
AT^SICS=1,alphabet,1					OK
AT^SICS=1,user,ppp@a1plus.at				OK
AT^SICS=1,passwd,ppp					OK
AT^SICS=1,apn,a1.net					OK
AT^SISS=1,srvType,"Http"				OK
AT^SISS=1,conId,1					OK
AT^SISS=1,alphabet,1					OK
AT^SISS=1,"address","http://httpbin.org/robots.txt"	OK
AT^SISS=1,hcContLen,0					OK
AT^SISS=1,hcContent,""					OK
AT^SISS=1,hcUsrAgent,"GPRS Modem"			OK
AT^SISS=1,hcMethod,0					OK
AT^SISO=1						OK
AT^SISR=1,10						^SISR: 1, 0  OK
AT^SISI=1						^SISI: 1,4,0,0,0,0  OK
AT^SICI=1						^SICI:1,2,1,
                                                           "100.121.246.73"   OK
AT^SISR=1,10						^SISR: 1, 0  OK
AT^SISR=1,10						^SISR: 1, 0  OK
AT^SISI=1						^SISI: 1,4,0,0,0,0   OK
AT^SICI=1						^SICI:1,2,1,
                                                            "100.121.246.73"  OK
AT^SISC=1						OK

Thanks in regards!
Martin

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albrecht15's picture
albrecht15
Nov 14 2017 - 9:08pm

I have just realised, that an already working precedure to upload txt-files to another FTP server is also not working anymore. I suspect, that the AT&F0 reset maybe changed an important setting...

Commands for FTP-Upload (was working before):

 ATE1
AT+CMEE=1
AT+CPIN=****
AT+CGATT=1
AT+CGDCONT=1,"IP","a1.net"
AT+CGACT=1,1
AT^SCFG="Tcp/WithURCs","off"
AT^SICS=1,conType,GPRS0
AT^SICS=1,alphabet,1
AT^SICS=1,user,ppp@a1plus.at
AT^SICS=1,passwd,ppp
AT^SICS=1,apn,a1.net
AT^SISS=1,srvType,Ftp
AT^SISS=1,alphabet,1
AT^SISS=1,conId,1
AT^SISS=1,address,"ftpput://********xx_****xxx:yyyyyyyyyy@ftp42.world4you.com/ftp_upload/201711141858.txt;type=i;mode=a"
AT^SISO=1
------------------------------------------------------------------
Now AT^SISI=1 returns always ^SISI: 1,3,0,0,0,0
AT^SICI=1 returns ^SICI: 1,2,1,"100.121.246.73"
AT^SISE=1 returns ^SISE: 1,0
------------------------------------------------------------------
AT^SISW=1,8,1
TestText

I hope this helps to find my mistake...

Bartłomiej Gemalto Moderator's picture
Bartłomiej Gema...
Nov 15 2017 - 3:29pm

Hello,

Do you have polling mode or URC mode configured (at^scfg=tcp/withurcs)?

In case of first connection it seems that connection is up. Can you also check 'AT^SISO?' command? Have you tried any other sites?

In case of FTP the connecction is still in the connecting state. So maybe there is some problem with network or ftp server, or subscription if the same was working before.

Regards,

Bartłomiej

albrecht15's picture
albrecht15
Nov 16 2017 - 6:21pm

Hello Bartłomiej,

Thank you for your fast response.
After some experiments with settings, I tried out a different SIM card and it is finally working again.
It also solved the HTTP problem...

Thank you very much!
Best regards, Martin