
Getting started with the XBee Smart Modem Development Kit
Connect to the Daytime server
Digi XBee3 Cellular LTE-M Global Smart Modem User Guide
24
Connect to the Daytime server
The Daytime server reports the current Coordinated Universal Time (UTC) value responding to any
user input.
The following table explains the AT commands that you use in this example.
At
command
Value
Description
IP
(IP
Protocol)
1
Set the expected transmission mode to TCP communications.
DL
(Destination
Address)
52.43.121.77 The target IP of the Daytime server.
DE
(Destination
Port)
0x232A
The target port number of the Daytime server.
TD
(Text
Delimiter)
0
The text delimiter to be used for Transparent mode, as an ASCII hex
code. No information is sent until this character is entered, unless the
maximum number of characters has been reached. Set to zero to
disable text delimiter checking.
To communicate with the Daytime server:
1. Ensure that the device is set up correctly with the SIM card installed and the antennas
connected as described in
2. Open XCTU and
.
3. Click the
Configuration working mode
button.
4. Select a device from the
Radio Modules
list. XCTU displays the current firmware settings for
that device.
5. To switch to TCP communication, in the
IP
field, select 1 and click the
Write
button
.
6. To enter the destination address of the daytime server, in the
DL
field, type
52.43.121.77
and
click the
Write
button.
7. To enter the destination IP port number, in the
DE
field, type
232A
and click the
Write
button.
8. To disable text delimiter checking, in the
TD
field, type
0
and click the
Write
button.
9. Click the
Consoles working mode
button
on the toolbar to open a serial console to the
device. For instructions on using the Console, see the
topic in the
XCTU User Guide
.