Re: Sim300cz - at commands - gprs

[Kandeepan]

Re: Sim300cz - at commands - gprs

Mate, SIMCOM's SIM300cz does not recognise the MultiTech Systems' AT-Command such as FTPPORT, FTPTYPE.
Anyway thanks and I appriciate for your responses.

When I tried it on "Command Prompt-DOS" I got the following response.

================================================================================
C:\>ftp
ftp> open 212.157.119.102
Connected to 212.157.119.102.
220-***********************************************************
220- PLASTIC OMNIUM SYSTEMES URBAINS
220-
220 ***********************************************************
User (212.157.119.102none)): usr-sigma-signature
331 Password required for usr-sigma-signature
Password:
230 Logged on
ftp>

======================================================================================

Where as on Hyper Terminal It does not ask for User name or Password and I coul dnot find a way to feed the user name and password.

AT+CIPSTART="TCP","212.157.119.102","21"
OK

CONNECT OK
+IPD65:220-***********************************************************
+IPD38:220- PLASTIC OMNIUM SYSTEMES URBAINS
+IPD6:220-
+IPD65:220 ***********************************************************
AT+CIPSEND
+IPD54:421 Login time exceeded. Closing control connection.

I'm keep on trying and will see how it goes

If anything comes in your mind please let me know..

Thanks ..

Kandeepan

 

[namlooc]

Re: Sim300cz - at commands - gprs

Please, help me with ip address in GSM NETWORK.
I have sim548c GSM modem.

I'm sending data like this:

AT+CREG=1 --> answer: ok
AT+CSNS=4 --> answer: ok
AT+CSTT="INTERNET","INTERNET","INTERNET" --> answer: ok
AT+CIICR -->answer: ok
AT+CIFSR --> answer: ip adres
AT+CIPSTART="tcp","193.200.51.2","8000" --> answerk
AT+CIPSEND
> HELLOW WORLD <ctrl+z> -->answer: send ok
AT+CIPCLOSE -->answer: close ok
AT+CIPSHUT -->answer: shut ok
AT+CIPSTATUS -->answer: ip initial

Everything till this point is ok. Modem is sending "HELLOW WORLD" correctly to my PC.

After a while, i want to send more data. The same way i did it before:

AT+CREG=1 --> answer: ok
AT+CSNS=4 --> answer: ok
AT+CSTT="INTERNET","INTERNET","INTERNET" --> answer: ok
AT+CIICR -->answer: ERROR !!
AT+CIFSR --> answer: ERROR !!
AT+CIPSTART="tcp","193.200.51.2","8000" --> answerk
AT+CIPSEND
> HELLOW WORLD <ctrl+z> -->answer: send ok
AT+CIPCLOSE -->answer: close ok
AT+CIPSHUT -->answer: shut ok
AT+CIPSTATUS -->answer: ip initial

Modem is sending "HELLOW WORLD" correctly to my PC, but i can't get another IP adress.

My question: How to get rid of current IP address, and get another ?
or When i will be known about taking away my ip address?
and When a new IP address expires and i will need to get a new one?

I have found in the sim548c datasheet that AT+CIICR works only when STATE is IP START:
**broken link removed**
..but i have IP INITIAL :/