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27
̶
Example message response to read request for variant of the keypad (Index 0x08,
Subindex 0x04):
The description for the reject reason code are defined in the K-Matrix.
9.4.4
Write data object request
̶
Keypad action on Rx:
-
If INDEX and SUBINDEX are writeable objects, reply with a "Write data object reply
OK" message and write data into the indexed data object.
-
If INDEX and SUBINDEX are not writeable objects, reply with a "Write data object
reply NOK" message.
̶
Transmitted by:
-
User Application Master
̶
Data bytes content:
BYTE #
8-bit Data
16-bit Data
32-bit Data
0
COMMAND (
0x04
)
1
INDEX of returned Data Object
2
SUBINDEX of returned Data Object
3
DATA
DATA[0] (LSB)
DATA[0] (LSB)
4
Not used
DATA[1] (MSB)
DATA[1]
5
Not used
Not used
DATA[2]
6
Not used
Not used
DATA[3] (MSB)
7
Not used
Not used
Not used
̶
Example message write request for J1939 Node-ID (Index 0x1B, Subindex 0x00, new
Node Address 0x85):
CAN-ID
DLC Data
Byte 0
Data
Byte 1
Data
Byte 2
Data
Byte 3
Data
Byte 4
Data
Byte 5
Data
Byte 6
Data
Byte 7
0x18EF8000
8
0x04
0x1B
0x00
0x85
0x00
0x00
0x00
0x00
CAN-ID
DLC Data
Byte 0
Data
Byte 1
Data
Byte 2
Data
Byte 3
Data
Byte 4
Data
Byte 5
Data
Byte 6
Data
Byte 7
0x18EF0080
8
0x03
0x08
0x04
0x09
0xFF
0xFF
0xFF
0xFF
