15-13
IM DLM3054-01EN
Reference Values (a and b)
If the comparison condition is set to Data = A, Data ≠ a, a ≤ Data, Data ≤ b, a ≤ Data ≤ b, or “Data < a or
b < Data,” set the reference values in decimal notation. You must set the byte order (Endian), sign (Sign),
and comparison range (MSB or LSB).
The selectable ranges are as follows:
Unsigned
(Unsign)
0 to 9E+18
The selectable maximum value is limited by the data length and bit position, which are
determined by the Size and MSB/LSB settings, respectively.
Signed
(Sign)
−9E+18 to 9E+18
The selectable minimum and maximum values are limited by the data length and bit
position, which are determined by the Size and MSB/LSB settings, respectively.
The value is displayed in scientific notation when the number of digits exceed seven (example:
110).
If the comparison condition is a ≤ Data ≤ b or “Data < a or b < Data,” the two reference values are
automatically adjusted so that the lower limit is less than or equal to the upper limit.
Byte Order (Endian), Sign (Sign), and Comparison Range (MSB/LSB)
These items are the same as those of the CAN bus trigger.
ACK Mode
These items are the same as those of the CAN bus trigger. Set the ACK slot state as a search condition.
Message/Signal
These items are the same as those of the CAN bus trigger. Set the search conditions using Message and
Signal. Messages can be used when the ID input format is set to Message.
FDF
Set the FDF bit state as a search condition.
0 (CAN): When the FDF bit is dominant, the instrument assumes that the frame is a CAN bus signal frame and
detects it.
1 (CAN FD): When the FDF bit is recessive, the instrument assumes that the frame is a CAN FD bus signal
frame and detects it.
ESI(Error Passive)
When the ESI bit is recessive (error passive), the instrument detects it as a detected point.
Executing a Search (Search)
The instrument searches for locations where the specified search conditions are met. Then, the instrument
displays the frame corresponding to the specified detected point number (Pattern No) expanded in the zoom
window.
Detected Points
The detected points are the same as the trigger points.
Jumping to the Specified Field (Field Jump)
You can move the zoom position to the start of the following fields in the frame corresponding to the specified
detected point number.
SOF, ID, Control Field, Data Field, CRC, ACK
15 Analyzing and Searching Serial Bus Signals