51
7 OPTION
51
OPTION
Chapter
7
02 (0x0002) Return diagnostic register (not supported by the F331)
Request frame is returned as it is.
04 (0x0004) Force listen only mode
Slave is brought into receive-only mode.
All messages are ignored and no action and response are made, but each counter and event log are
processed.
However, only subfunction 1 is accepted, by which communication is initialized to restart, and the
receive-only mode is canceled.
10 (0x000A) Clear counters and diagnostic register
All counters and the diagnostic register are cleared.
11 (0x000B) Return bus message count
The total number of frames detected by slave is read.
The count is incremented when slave ID is consistent and at broadcast-time.
[Request]
Function 1 byte 0x08
Subfunction 2
bytes 0x00, 0x02
Data N×2
bytes Desired 16-bit data
[Response]
Echo of request
[Request]
Function 1 byte 0x08
Subfunction 2 bytes 0x00, 0x04
Data 2
bytes 0x00, 0x00
[Response]
None
[Request]
Function 1 byte 0x08
Subfunction 2
bytes 0x00, 0x0A
Data 2 bytes 0x00, 0x00
[Response]
Echo of request
[Request]
Function 1 byte 0x08
Subfunction 2
bytes 0x00, 0x0B
Data 2
bytes 0x00, 0x00
[Response]
Function 1 byte 0x08
Subfunction 2 bytes 0x00, 0x0B
Data 2
bytes Message count
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