Hardware Trigger Modes - Keithley 708B Reference Manual

Section 3: Functions and features
2.000000000e+000
2.000000000e+000
2.000000000e+000
2.000000000e+000
2.000000000e+000
6.000000000e+000
For more examples of using scanning and triggering, see the Models 707B and 708B User's Manual,
section "Using a Series 2600 with your Model 707B or 708B."

Hardware trigger modes

Use the hardware trigger modes to integrate Keithley Instruments and non-Keithley instruments into
an efficient test system. The hardware synchronization lines are classic trigger lines. The Model 707B
or 708B contains 14 digital I/O lines and three TSP-Link synchronization lines that you can use for
input or output triggering. The following table provides a summary for each hardware trigger mode.
Trigger mode
Bypass
Either edge
Falling edge
Rising edge
Rising A
3-12
2.000000000e+000
2.000000000e+000
2.000000000e+000
3.000000000e+000
3.000000000e+000
3.000000000e+000
Output
Unasserted Asserted
N/A N/A
High Low
High Low
N/A N/A
High Low
Models 707B and 708B Switching Matrix Reference Manual
1.000000000e+000
2.000000000e+000
3.000000000e+000
1.000000000e+000
2.000000000e+000
3.000000000e+000
NOTE
Input Notes
Detects
N/A Use the writetbit and writeport
commands for direct line control
Either Short input pulses can cause a trigger
overrun
Falling
•
N/A
The programmed state of the line
determines if the behavior is
similar to RisingA or RisingM
•
High similar to RisingA
•
Low similar to RisingM
Rising
Shows scan is running
(state = 2) and just
completed step 1 for scan
count of 2
Shows scan is running
(state = 2) and just
completed step 2 for scan
count of 2
Shows scan is running
(state = 2) and just
completed step 3 for scan
count of 2
Shows scan is running
(state = 2) and just
completed step 1 for scan
count of 3
Shows scan is running
(state = 2) and just
completed step 2 for scan
count of 3
Shows scan has completed
(state = 6) and just
completed step 3 for scan
count of 3
707B-901-01 Rev. A / August 2010