DOG (Protocol Watchdog)¶
The AT@DOG command is used to restart the terminal periodically, which may help prevent the device from staying in malfunctioning state for a long time.
Example:
AT@DOG=gv500cna,1,,7,0300,,,,,012F$
+ACK:DOG,123456789012345,8203,3,0,,012F,20210407101530,1234$
AT@DOG?gv500cna,,0C37$
+QRY:DOG,123456789012345,8203,3,0,1,1,1,,7,0300,0,,,60,0C37,20210407101530,1234$
Parts |
Fields |
Length (Byte) |
Range/Format |
Default |
|---|---|---|---|---|
Head |
Header |
3 |
AT@ |
AT@ |
Command Word |
3 |
DOG |
DOG |
|
Leading Symbol |
1 |
= |
= |
|
Password |
8-16 |
gv500cna |
||
Body |
Mode |
1 |
0, 1 |
0 |
Reserved |
0 |
|||
Interval |
<=2 |
1-30 (days) |
7 |
|
Time |
4 |
HHMM |
0300 |
|
Time Randomness |
1 |
0, 1 |
0 |
|
Reserved |
0 |
|||
Reserved |
0 |
|||
Send Failure Timeout |
<=4 |
0, 15-1440 (minutes) |
60 |
|
Tail |
Sequence Number |
4 |
0000-FFFF (‘0’-‘9’, ‘A’-‘F’) |
|
Tail |
1 |
$ |
$ |
Mode
0 - Disable. The terminal does not restart periodically.
1 - Enable. The terminal will automatically restart periodically according to the following parameters.
Interval
The interval to restart the terminal.
Time
At what time to perform the restart operation when ‘Interval’ (unit is day) is met.
For example, ‘Interval’ is “7”, ‘Time’ is “0300”, which means that every 7 days, and the terminal will restart at 03:00:00 in the morning.
Time Randomness
Specify whether to enable the randomness of reboot time.
0 - Disable. When this function is disabled, the restart action is allowed to be executed at a random moment within 5 minutes after the scheduled time has been reached.
1 - Enable. When this function is enabled, the restart action is allowed to be executed at a random moment within one hour after the scheduled time has been reached.
Send Failure Timeout
The terminal will reboot automatically if message interaction failed time is greater than ‘Send Failure Timeout’. In particular, 0 means no rebooting the terminal.