Control Source And Event Detection; Delay (Auto Or Manual) - Keithley 2701 User Manual

Model 2701 User's Manual

Control source and event detection

The control source holds up operation until the programmed event occurs and is detected.
The control sources are described as follows:
•
•

Delay (auto or manual)

A programmable delay is available after event detection. It can be set manually or an auto
delay can be used. With auto delay selected, the instrument automatically selects a delay
period that will provide sufficient settling for function changes, autorange changes, and
multi-phase measurements.
Normal measurement state — With auto delay selected and the External or Bus control
source selected, the Model 2701 selects a delay based on the selected voltage range. The
auto delay period cannot be adjusted by the user. The auto delays are listed in
With one of the other control sources selected, the auto delay is 0.000s for all functions
and ranges.
Immediate — With this control source, event detection is immediately satisfied
allowing operation to continue.
External — Event detection is satisfied for any of the following three conditions:
• An input trigger via the Trigger Link line EXT TRIG is received.
• The front panel TRIG key is pressed. (The Model 2701 must be taken out of
remote before it will respond to the TRIG key. Use the LOCAL key or send
SYSTem:LOCal over the Ethernet or RS-232.)
• Trigger command (*TRG) is received over the Ethernet or RS-232.
Triggering 8-3
Table 8-1.