2-16
IM 701450-51E
Setting the Combination Trigger
A trigger can be activated on the combination of the trigger conditions of the CAN Bus
signal and the trigger conditions of CH2 to CH8 (CH2 to CH4 on the DL7440). You can
select from the following three types.
CAN Only
Activates a trigger only on the trigger conditions of the CAN bus signal.
Trigger condition of the CAN Bus Signal is met
CAN
(CH1)
CH2
CH3
.....
Condition met
Trigger activates here (CH2 to CH8 are irrelevant)
S
O
F
R
T
R
I
D
E
r
0
DLC
(4 bits)
Identifier (11 bits)
To activate a trigger on the Start of Frame (SOF)
CAN on Pattern
Activates a trigger only when the trigger conditions of the CAN Bus signal are met while
the trigger conditions of CH2 to CH8 (CH2 to CH4 on the DL7440) are met.
Trigger condition of the CAN Bus Signal is met
CAN
(CH1)
CH2
CH3
.....
S
O
F
R
T
R
I
D
E
r
0
DLC
(4 bits)
Identifier (11 bits)
Condition met
Trigger activated here
Condition not met
Trigger does not activate
To activate a trigger when CH2 = H, CH3 = L, Condition = True, Start of Frame (SOF)
S
O
F
Identifier (11 bits)
Trigger condition of the CAN Bus Signal is met
• Patterns of CH2 to CH8 (CH2 to CH4 on the DL7440)
You can set the pattern as follows:
H
The trigger source level is above the preset trigger level.
L
The trigger source level is below the preset trigger level.
X
Not used as a trigger source.
• Pattern Condition
Select the condition from the following.
True
A trigger is activated when the specified pattern of CH2 to CH8 (CH2 to CH4 on the
DL7440) is met.
False
A trigger is activated when the specified pattern of CH2 to CH8 (CH2 to CH4 on the
DL7440) is no longer met.
2.4 Setting CAN Bus Signal Acquisition Conditions