Models 707B and 708B Switching Matrix Reference Manual
Section 2: General operation
707B-901-01 Rev. A / August 2010
2-79
Set up simple triggers
You can set up triggers to control your scan using the options on the Simple Triggers tab. You can
set:
•
The event that starts the scan
•
The time interval between scans
•
The time interval between channels
To see these options, click the
Simple Trigger
tab in the top left corner of the Scan Builder page.
Trigger to start scan
You can choose the triggers that will be used to start the scan. The options to start the scan are:
Immediate
: When Immediate is selected, the scan starts as soon as you click
Execute Background
on the Build & Run tab. Select Immediate when you do not have trigger requirements to start the
scan. This is the default selection.
Digital Input
: When selected, you select a digital line (1 to 14) that is used to start a scan. You can
select falling or rising for the digital input. Falling selects the falling edge trigger. Rising selects the
rising edge of the trigger.
NOTE
If Other is displayed in the mode list, a different mode (other than falling or rising) is already selected.
Other is not a mode and cannot be selected. It is only an indicator that the digital triggering is already
set up for a different mode. See
(on page 2-80) for other options.
Channel action trigger
You can select the trigger to use to continue channel action for each scan. The options to continue
channel action are:
Immediate
: When immediate is selected, the scan immediately steps to the next channel in the scan
list. This is the default setting.
Digital Input
: When selected, you select a digital line (1 to 14) that is used to trigger the instrument to
step to the next channel. You can select falling or rising for the digital input. Falling selects the falling
edge trigger. Rising selects the rising edge of the trigger.
NOTE
If Other is displayed in the mode list, a different mode (other than falling or rising) is already selected.
Other is not a mode and cannot be selected. It is only an indicator that the digital triggering is already
set up for a different mode. See
(on page 2-80) for other options.
Every
N
seconds
: This parameter adds a fixed delay between each channel. The delay occurs
before the next channel in the scan list is closed.
