Siemens Brodersen MC55 AT Command Manual page 241

4
5
6
(num)
<socketState>
Socket state identifier.
1
2
3
4
(num)
<rxCount>
Number of bytes received via
(num)
<txCount>
Number of bytes sent via
(str)
<locAddr>
Recently used local IP address in dotted-four-byte format and TCP port, separated by colon, e.g.
"192.60.10.10:80".
(str)
<remAddr>
Remote IP address in dotted-four-byte format and TCP port, separated by colon, e.g. "192.60.10.10:80".
Note
• As in polling mode no error URCs are available you are advised to integrate the commands
into the command sequences for upload and download jobs. So, the
AT^SISE
followed by
AT^SISI
AT^SISW. This helps you to detect errors even though the "^SIS" URCs are disabled. A typical example is
that the service fails to be opened because the service profile contains a wrong destination address. In such
a case, after opening with
4 and 6, with an error being returned no earlier than after sending the first
In URC mode, an error URC, such as "Host not found" would be received in this situation, but in polling mode
the only way to detect the state is using
MC55_ATC_V04.00
Confidential / Released
Up
The service performs its purpose. The data transfer process is the major func-
tion at this state.
FTP: Data channel is up.
SMTP: The SMTP service will not enter <srvState>=4 until the host has writ-
ten the first data packet with AT^SISW.
Closing
Internet Service is closing the network connection.
FTP: Command channel is released.
Down
This state is entered if
- the service has successfully finished its session (see note on Socket),
- the remote peer has reset the connection or
- the IP connection has been closed because of an error.
If a service in this state be sure to close it with
Additional note for Socket: The Socket service enters <srvState>=6 after
counter has reached 0.
<unackData>
Socket not assigned, i.e. no TCP/UDP connection active.
Socket assigned as CLIENT.
Socket assigned as LISTENER.
Socket assigned as SERVER.
since last successful
AT^SISR
since last successful
AT^SISW
to check that the service has entered the <srvState>=4 before sending
and OK response, the service quickly enters the states <srvState>=2,
AT^SISO
AT^SISI
Page 241 of 475
write command.
AT^SISO
write command.
AT^SISO
AT^SISR
or, alternatively, AT^SISO.
before reopening it.
AT^SISC
AT^SISI
command may be
AT^SISO
AT^SISR
or command.
AT^SISW
3/17/06
and
or