Connect To The Echo Server - Digi XB3-C-A2-UT series User Manual

Getting started with the XBee Smart Modem Development Kit

Connect to the echo server

This server echoes back the messages you type.
The following table explains the AT commands that you use in this example.
At
command Value
IP (IP 1
Protocol)
TD (Text
D (0x0D)
Delimiter)
DL 52.43.121.77 The target IP address of the echo server.
(Destination
Address)
DE 0x2329
(Destination
Port)
To communicate with the echo 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
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 enable the XBee Smart Modem to recognize carriage return as a message delimiter, in the
TD field, type D and click the Write button.
7. To enter the destination address of the echo server, in the DL field, type 52.43.121.77 and click
the Write button.
8. To enter the destination IP port number, in the DE field, type 2329 and click the Write button.
Digi XBee3 Cellular LTE-M Global Smart Modem User Guide
Description
Set the expected transmission mode to TCP communications.
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. Set to D for a carriage return.
The target port number of the echo server.
Connect the hardware.
Add a device.

Connect to the echo server

button.
.
22