eao 09 Series, Operating Instructions Manual

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Service Data – Proprietary A
All access that is needed can be realized through the Prop A PGN. The composition of the
CAN message to interact with the keypad accordingly is described in the following. How a
message is composed also relies on the object the user wants to address. If the object is
defined as an 8-bit data object it looks different than interacting with a 16- or 32- bit object. The
definition of each object can be found in the K-Matrix.
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 CMD Byte Index of Data
object
Subindex of
Data object
Content specific
to addressed
Data object
9.4.1 Read Data object Request
̶ Keypad action on Rx:
-
If INDEX and SUBINDEX are readable objects, reply with a "Read data object reply
OK" message.
-
If INDEX and SUBINDEX are not readable objects, reply with a "Read 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 ( 0x00 )
1 INDEX of returned Data Object
2 SUBINDEX of returned Data Object
3 Not used Not used Not used
4 Not used Not used Not used
5 Not used Not used Not used
6 Not used Not used Not used
7 Not used Not used Not used
̶ Example message read request for variant of the keypad (Index 0x08, Subindex 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
0x18EF8000 8 0x00 0x08 0x00 0x00 0x00 0x00 0x00 0x00