Command 64h, APPFILE (Application file record)
The following table shows the structure of the report packet containing the application file. All data in the packet flows from the data collector to the receiver.
|
Byte |
Item |
Type |
Value |
Notes |
|---|---|---|---|---|
|
0 |
STX |
1 (Char) |
02h |
Start transmission |
|
1 |
STATUS |
1 (Char) |
00h |
Receiver status code |
|
2 |
PACKET TYPE |
1 (Char) |
64h |
Command Packet 64h |
|
3 |
LENGTH |
1 (Char) |
00h |
Data byte count |
|
4 |
TRANSMISSION NUMBER |
1 (Char) |
00h–FFh |
A transmission number is a unique transmission serial number ranging from 0 to 255, typically incrementing by 1 each time an application file is sent |
|
5 |
PAGE INDEX |
1 (Char) |
00h–FFh |
Index number (0 to 255) assigned to the current page |
|
6 |
MAXIMUM PAGE INDEX |
1 (Char) |
00h–FFh |
Index number (0 to 255) assigned to the last page of the packet |
|
----- FILE CONTROL INFORMATION BLOCK ----- |
||||
|
----- APPLICATION FILE RECORDS ----- |
The following records are available: |
|||
|
Length + 4 |
CHECKSUM |
CHAR |
|
Checksum value. See Data collector format: packet structure. |
|
Length + 5 |
ETX |
CHAR |
03h |
End transmission |
After all pages of the 64h command are sent, the receiver will ACK or NAK this command.