Quectel BG96 TCP/IP User Manual

LPWA Module Series
BG96 TCP/IP Application Note
BG96_TCP/IP_Application_Note 25 / 52
2.2.12. AT+QNTP Synchronize Local Time with NTP Server
The Write Command synchronizes UTC with the NTP server. Before using NTP, the host should activate
the context corresponding to <contextID> via AT+QIACT first. Depending on the network, it will take at
most 125 seconds to return the result.
Parameter
Others Error code of operation. Please refer to the error codes in Chapter 4.
<sent> Integer type. Total number of sending the ping requests.
<rcvd> Integer type. Total number of the ping requests that received the response.
<lost> Integer type. Total number of the ping requests that are timeout.
<min> Integer type. Minimum response time. Unit: ms.
<max> Integer type. Maximum response time. Unit: ms.
<avg> Integer type. Average response time. Unit: ms.
AT+QNTP Synchronize Local Time with NTP Server
Test Command
AT+QNTP=?
Response
+QNTP: (range of supported <connectID>s),<server>,(range of
supported <port>s),(list of supported <auto_set_time>s)
OK
Read Command
AT+QNTP?
Response
If in the process of local time synchronization:
+QNTP: <server>,<port>
OK
Write Command
AT+QNTP=<contextID>,<server>
[,<port>[,<auto_set_time>]]
Response
If the local time is synchronized with NTP server successfully:
OK
+QNTP: <err>,<time>
If there is any error:
ERROR
Maximum Response Time
125 s, determined by network.
Characteristics
The command takes effect immediately (actually determined by
network).
The configurations will not be saved.
<contextID> Integer type. Context ID. Range: 1–16.
<server> String type. Address of NTP server.

Quectel BG96 TCP/IP Specifications

General

Module Type	LTE Cat M1/Cat NB1/EGPRS
Form Factor	LGA
Frequencies GSM	850/900/1800/1900MHz
SIM Interface	1.8V/3V
Operating Temperature	-40°C to +85°C
Storage Temperature	-45°C to +90°C
Network Technology	LTE Cat M1, LTE Cat NB1, EGPRS
LTE Category	Cat M1/Cat NB1
Frequencies LTE FDD	B1/B3/B5/B8/B12/B13/B18/B19/B20/B26/B28
Frequencies LTE TDD	B39/B40/B41
LTE Max Data Rate (LTE Cat M1)	375 kbps
LTE Max Data Rate (LTE Cat NB1)	32 kbps (DL), 70 kbps (UL)
EGPRS Data Rate	296 kbps (DL), 236.8 kbps (UL)
Data Rate (LTE Cat M1)	375 kbps
Data Rate (LTE Cat NB1)	32Kbps (DL)/70Kbps (UL)
Interfaces	UART
GNSS	GPS, GLONASS, BeiDou, QZSS
Protocols	TCP/IP, UDP, HTTP, MQTT
Certifications	CE, FCC, IC, RCM

Summary

Introduction to Quectel BG96 TCP/IP

Process of Using TCP/IP AT Commands

Explains the sequence of AT commands for TCP/IP operations and context management.

Description of Data Access Modes

Details the three data access modes (Buffer, Direct Push, Transparent) supported by the module.

TCP/IP AT Commands Reference

AT Command Syntax

Defines syntax rules, parameters, and response formats for AT commands.

Description of TCP/IP AT Commands

Provides detailed descriptions, parameters, and usage for all TCP/IP AT commands.

Description of URCs

Explains Unsolicited Result Codes (URCs) for asynchronous TCP/IP events.

Examples of TCP/IP Usage

Configure and Activate a Context

Demonstrates the steps to configure and activate a network context.

TCP Client Works in Buffer Access Mode under IPv4

Illustrates setting up and using a TCP client in buffer mode with IPv4.

TCP Client Works in Buffer Access Mode under IPv6

Demonstrates TCP client operations in buffer mode with IPv6.

TCP Client Works in Transparent Access Mode

Shows how to use a TCP client in transparent access mode for data transfer.

TCP Client Works in Direct Push Mode

Explains TCP client operations in direct push mode for data transfer.

TCP Server Works in Buffer Access Mode under IPv4

Details setting up and using a TCP server in buffer mode with IPv4.

TCP Server Works in Buffer Access Mode under IPv6

Illustrates TCP server operations in buffer mode with IPv6.

UDP Service under IPv4

Demonstrates UDP service setup and operations with IPv4.

UDP Service under IPv6

Explains UDP service setup and operations with IPv6.

Ping a Remote Server

Shows how to use the ping command to test network reachability.

Synchronize Local Time

Demonstrates synchronizing the module's time with an NTP server.

Get Last Error Code

Explains how to retrieve the last error code for troubleshooting.

Summary of Error Codes

Appendix A Reference