User's Manual
Table Of Contents
- USR-G786-G User Manual
- 1.Introduction
- 2.Get Started
- 3.Utility Configuration
- 4.Serial Port
- 5.Selecting an Operating Mode
- 6.General Function
- 7.AT Command Set
- 7.1.AT Command Examples
- 7.2.AT Command Set
- 7.2.1.AT
- 7.2.2.AT+H
- 7.2.3.AT+Z
- 7.2.4.AT+E
- 7.2.5.AT+ENTM
- 7.2.6.AT+WKMOD
- 7.2.7.AT+CMDPW
- 7.2.8.AT+STMSG
- 7.2.9.AT+RSTIM
- 7.2.10.AT+CSQ
- 7.2.11.AT+SYSINFO
- 7.2.12.AT+UCPIN
- 7.2.13.AT+RELD
- 7.2.14.AT+CLEAR
- 7.2.15.AT+CFGTF
- 7.2.16.AT+VER
- 7.2.17.AT+SN
- 7.2.18.AT+ICCID
- 7.2.19.AT+IMEI
- 7.2.20.AT+CIP
- 7.2.21.AT+LBS
- 7.2.22.AT+CCLK
- 7.2.23.AT+PING
- 7.2.24.AT+UART
- 8.Contact Us
- 9.Disclaimer
- 10.Update History
USR-G786-G User Manual Technical Support: h.usriot.com
Jinan USR IOT Technology Limited www.usriot.com
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ODD
4.2.
F
rame forming mechanism
4.2.1.Time Trigger
When G786-G receives data from the UART, it continuously checks the interval of two adjacent bytes. If the
interval time is greater or equal to a certain "time threshold", then a frame is considered finished, otherwise
the data is received until greater or equal to the packet length byte set. This frame is sent to the network as a
TCP or UDP packet. The "time threshold" here is the time between packages. The range of settable is
100ms~60000ms.Factory default: 100ms.
This parameter can be set by AT command, AT+UARTFT=<time>.
4.2.2.Length trigger
When G786-G receives data from the UART, it constantly checks the number of bytes received. If the number
of bytes received is equal to a certain "length threshold", a frame is considered to have ended, otherwise the
packaging time is waiting for the end. This frame is sent to the network as a TCP or UDP packet. The "length
threshold" here is the package length. The settable range is 100~1000.Factory default 1000.
(Note: when using “command password +AT command” function, the package length must be larger than the
“command password +AT command”, otherwise AT command is invalid)
This parameter can be set by AT command, AT+UARTFL=<length>.