4-33
IM DLM3054-01EN
Comparison Range (MSB/LSB)
Set the MSB (MSB) or LSB (LSB) bit positions for the data that you will compare. For example, if you want
to compare bits 5 through 20 of a 4-byte data value (12345678: hexadecimal), set the MSB to 20 and the
LSB to 5. In this case, the bits that are compared are those that are shaded in the following figure.
Selectable range: 0 to (the number of bytes of data × 8 − 1). The maximum value is 63.
Big endian
0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0
Bit
31
Bit
0
Data 3
Data 2
Data 1
Data 0
Little endian
0 1 1 1 1 0 0 0 0 1 0 1 0 1 1 0 0 0 1 1 0 1 0 0 0 0 0 1 0 0 1 0
Bit
31
Bit
0
Data 0
Data 1
Data 2
Data 3
ACK Mode
You can set a trigger condition based on the ACK slot state. The ACK trigger condition is met when the
specified state matches the input signal ACK slot state.
NON ACK
When the status is recessive
ACK
When the status is dominant
NON or ACK
When the status is recessive or dominant
Message/Signal
The messages and symbols in the physical value/symbol definition file (.sbl) that has been loaded into the
instrument can be used to set the trigger condition.* Messages and signals can be used when the ID input
format is set to Message.
* Physical value/symbol definition files (.sbl) are derived by converting CANdb files (.dbc).
Message
Select the ID from the Message list in the sbl file that has been loaded. The message trigger condition is
met when the selected message matches the input signal ID.
Signal
Select the data from the Signal list in the sbl file that has been loaded. The signal trigger condition is met
when the selected signal matches the input signal data.
Comparison Condition (Condition) and Reference Values (a and b)
The signal trigger condition is met when the result of comparing the reference values to the input signal
data meets the specified comparison condition.
The method of setting the comparison condition and reference values (a and b) is the same as with the ID/
Data mode when the input format is set to Pattern. However, you cannot set the comparison condition to
True or False.
The values loaded from the sbl file are used for the Endian, Sign, MSB/LSB, and ACK items.
4 Triggering