Digi XBee 3

AT commands Socket commands
Digi XBee® 3 Cellular LTE Cat 1 AT&T Smart Modem User Guide
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Socket commands
The following AT commands are socket commands.
SI (Socket Info)
Lists either information about a given socket or lists the socket IDs of all active (open) sockets on the
modem in a human-readable format.
When the SIcommand is issued without a parameter, the XBee outputs a list of socketIDS in hex,
separated by carriage returns (<CR>). After the last socket IDhas been printed the list is terminated
with an additional carriage return.
In both API and command mode the payload (output) will have the following format:
ID<CR>
ID<CR>
. . .
ID<CR>
<CR>
In the list of socket IDs, an asterisk (*) displays after the socket ID for non-Extended API Sockets
(which are sockets created implicitly when using IPv4 TX APIframes). In the example below, the 0x00
socket is an IPv4 TX/RX socket, and the 0x01 and 0x02 sockets are both Extended API sockets. The
socket IDs are displayed in ascending order, from smallest socket value to the largest.
0x00*
0x01
0x02
Note When sending ATcommands for APIframes it is standard to send the command as ASCII text
and the parameters for that command as binary.
When the SIcommand is issued with a socket ID, specified in hex, the response is a list of information
about the socket. The list is separated by carriage returns (<CR>) and terminated with an additional
carriage return.
In both API and command mode the payload/output will have the following format:
ID<CR>
STATE<CR>
PROTOCOL<CR>
LOCAL_PORT<CR>
REMOTE_PORT<CR>
REMOTE_ADDRESS<CR>
<CR>
Field Description
ID The socket ID.