Technical information

Nonvolatile Parameter Database
2-112 AT+i Commands Reference Manual May 31, 2008
+iPGT - PING Timeout
Command Options: The TTO parameter defines the timeout constant for Internet
transactions. W24 will return with a timeout error for any
TCP/UDP/IP transaction that didn't complete properly within
n±10%. Timeout measurement is defined between receipt of an
AT+i command and a W24 response to the host.
In dial-up environments, timeout measurement begins only after
establishing a PPP connection. Furthermore, an additional 10-15
seconds may be required to allow the W24 to disconnect the
modem.
n=0 is a special case where internal timeout constants will be
used.
Default: 0 (use W24's factory default timeout values)
Result Code:
I/OK If n is within limits.
I/ERROR Otherwise.
AT+i TTO~ n Temporarily sets the Internet transaction timeout value for one
session. The permanent value will be restored after completing
the next session, both if the session was successful or not.
AT+iTTO? Reports the current Internet transaction timeout used. The reply is
followed by I/OK.
AT+iTTO=? Returns the message "0-3600" followed by I/OK.
Syntax: AT+iPGT=n
Sets the timeout in milliseconds, after which W24 will reissue a
PING request that has not been replied to.
Parameters: n=0..65535 milliseconds
Command Options: After issuing a PING request, in response to the AT+iPING
command, W24 will wait up to n milliseconds for a reply. If a
reply is not received, W24 will reissue the PING request.
n=0 is a special case where a timeout of 2 seconds is used.
Default: 0 (use W24's factory default 2 seconds timeout)
Result Code:
I/OK If n is within limits.
I/ERROR Otherwise.
AT +i P GT ~ n Temporarily sets the PING transaction timeout value for one
session. The permanent value will be restored after completing
the next session, both if the session was successful or not.
AT+iPGT? Reports the current PING transaction timeout used. The reply is
followed by I/OK.
AT+iPGT=? Returns the message "0-65535" is followed by I/OK.