Connect to the Daytime server

The Daytime server reports the current Coordinated Universal Time (UTC) value responding to any user input.

Note For help with debugging, see Debugging.

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)	232A (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 Connect the hardware.

2. Open XCTU and Add a device to XCTU.

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 AT console topic in the XCTU User Guide.
10. Click the Open button to open a serial connection to the device.
11. Click in the left pane of the Console log, then type in the Console to query the Daytime server. The following screenshot provides an example of this chat.