HMC (Hour Meter Count)¶
The AT@HMC is used to count the accumulated ignition time of the vehicle, which can be understood as the accumulated working time of the vehicle.
Example:
AT@HMC=gv500cna,,0,,012F$
+ACK:HMC,123456789012345,8203,3,0,,012F,20210407101530,1234$
AT@HMC?gv500cna,,0C37$
+QRY:HMC,123456789012345,8203,3,0,1,1,,0,,0C37,20210407101530,1234$
Parts |
Fields |
Length (Byte) |
Range/Format |
Default |
|---|---|---|---|---|
Head |
Header |
3 |
AT@ |
AT@ |
Command Word |
3 |
HMC |
HMC |
|
Leading Symbol |
1 |
= |
= |
|
Password |
8-16 |
gv500cna |
||
Body |
Reserved |
0 |
||
Initial Hour Meter Count |
<=8 |
0-16777215 (minutes) |
0 |
|
Reserved |
0 |
|||
Tail |
Sequence Number |
4 |
0000-FFFF (‘0’-‘9’, ‘A’-‘F’) |
|
Tail |
1 |
$ |
$ |
Initial Hour Meter Count
The initial value for calculating the total hour meter count.
Note: When the terminal receives the AT@HMC command, it checks the Initial Hour Meter Count parameter: Only if this parameter is not empty and its value is different from the value stored in the terminal, the terminal will perform the operation “Initialize the Total Hour Meter Count (refer to Data 34) and clear the Current Hour Meter Count (refer to Data 35)”.