15-11
IM DLM3054-01EN
Search Setup (Search)
Search Type (Mode)
Select the CAN FD bus signal search type from one of the settings below.
• SOF: Searches for the start-of-frame position
• Error: Searches for errors
• ID/Data: Searches for the position where the AND condition of the ID bit pattern and Data pattern is met
• FDF: Searches for an FDF bit state
• ESI (Error Passive): Searches for when the ESI bit is recessive (error passive)
SOF(Start of Frame)
The instrument searches for the start position of CAN FD bus signal frames.
Error
The instrument searches for error frames (when the error flag is active) or various errors.
• Error Type (Error Type OR)
Error Frame When an active error flag (indicated by six consecutive dominant bits) is detected
Stuff
When stuff bits are not inserted properly
Fixed Stuff
When fixed CRC stuff bits are not inserted properly
CRC
When a CRC error is detected
If the aforementioned CAN FD standard is set to ISO, select the CRC error factor from
one of the settings below. You can also select both.
Stuff Count, CRC Sequence
ID/Data
The instrument searches for data frames and remote frames in the standard format (Standard) and the extended
format (Extend).
The instrument searches on the AND of the SOF, ID, frame type (Remote Frame or Data Frame), Data, and ACK
conditions.
• If you specify X in the ID bit pattern or data pattern, the condition is assumed to be met regardless of the
corresponding bit status.
• In a bit pattern or data pattern setting, if a binary pattern contains any Xs, the corresponding hexadecimal
display will be “$.”
• Search Conditions (Condition Setup)
On the Condition Setup screen, set the search conditions such as the frame type (Remote Frame or Data
Frame) and data.
Frame Format
Select the frame format.
• Standard: Standard format
• Extend: Extended format
SOF
Searches for the start of a CAN FD bus signal frame when the trigger condition is set to SOF only. SOF of ID/
Data is always selected as a search condition.
15 Analyzing and Searching Serial Bus Signals