15-10
IM DLM3054-01EN
Auto Setup (Auto Setup)
Set the CAN FD standard for the specified source and then execute auto setup.
The auto setup feature automatically configures the bit rate, recessive level, sample point, level, and hysteresis,
and triggers on the start of frame (SOF) of the CAN FD bus signal.
You cannot execute auto setup if the source is set to Math1 to Math4.
Decoded Display (Decode)
The colors that are used for the fields in the decoded display are as follows:
Arbitration
Light green (Light Green)
Control
1
Pink (Pink)
Data
Cyan (Cyan)
Stuff Count
2
Light blue (Light Blue)
CRC
Light blue (Light Blue)
Error bit, field in which the error occurred,3 frame, error frame
Red (Red)
Overload frame
Green (Green)
Frame background
Gray (Gray)
Stuff bits
Gray (Gray) fill
ESI bit and frame when the ESI bit is recessive
3
Orange (Orange)
FDF bit and frame when the FDF bit is recessive
3
Dark blue (Dark Blue)
Frame when the FDF bit is dominant
3
Light blue (Light Blue)
1 If the FDF bit is recessive and display space is available, FD is displayed in front of DLC.
2 This appears when the CAN FD standard (FD Standard) is set to ISO.
3 The order of precedence when these frames overlap is the frame in which the error occurred, frame
when the ESI bit is recessive, the frame when the FDF bit is dominant, and the frame when the FDF bit is
recessive.
List Display (List - Show List)
The list displays the following items.
No.
Analysis number. Negative numbers are assigned to frames before the and positive numbers
are assigned to frames after the trigger position.* The instrument can display the analysis
results for up to 50000 frames in the range of −49999 to 49999. Pressing the RESET key
highlights frame number zero.
Time(ms)
Displays the time from the trigger position* to the start of the frame in milliseconds.
Frame
Displays the frame type. The instrument can analyze the following four frame types: data frame
(Data), remote frame (Remote), error frame (Error), and overload frame (Over load). If the FDF
bit is recessive, FD is displayed in front of Data.
ID
Displays the 11-bit standard format ID value or the 29-bit extended format ID value in
hexadecimal notation. If decode (Decode) is set to Symbol, the ID is displayed with the
message name.
DLC
Displays the number of significant digits in hexadecimal notation.
Data
Displays the data in hexadecimal notation when the frame type is data frame. If decode (Decode)
is set to Symbol, Data is displayed with physical values. If the number of bytes is 9 or higher,
every 8 bytes of data is displayed in its own line.
SC
Displays the 4-bit value of the stuff bit count and parity in hexadecimal notation. This appears
when the CAN FD standard (FD Standard) is set to ISO.
CRC
Displays the sequence in hexadecimal notation. This is displayed when the frame type is data
frame or remote frame.
Ack
Displays “Y” when an ACK bit is detected and “N” otherwise.
Information
Displays the following error information. If multiple errors are detected in one piece of data, the
instrument displays a single error in the following order of precedence.
Stuff Error, Fixed Stuff Error, CRC Error
If the CAN FD standard (FD Standard) is set to ISO, the CRC error is displayed as follows
according to the error type.
CRC Error (SC): Stuff Count error, CRC Error (Seq): CRC Sequence error,
CRC Error (SC,Seq): Both Stuff Count and CRC Sequence error
In addition to error information, if the ESI bit is recessive (error passive), “ESI(Error Passive)” is
displayed.
* If
is set to OFF, they are based on the trigger point.
15 Analyzing and Searching Serial Bus Signals