Running The Trigger Model - Keithley 2450 Reference Manual

Model 2450 Interactive SourceMeter® Instrument Reference Manual Section 3: Functions and features
Determining the structure of the existing trigger model
You can retrieve the existing trigger model structure from the front panel or by using remote
commands.
Using the front panel:
1. Press the MENU key.
2. Under Trigger, select Configure.
The trigger model is displayed.
Using SCPI commands:
To retrieve the settings for all trigger model building blocks, send the command:
:TRIGger:BLOCk:LIST?
Using TSP commands:
To check the settings for a building block, send the command:
print(trigger.model.getblocklist())
To retrieve the TSP code for trigger model blocks that were entered through the front panel, change
the Event Log "Command" setting to On. Refer to Using the event log (on page 2-117) for additional
information.
Action overruns
An action overrun occurs when a trigger object receives a trigger event and is not ready to act on it.
The action overruns of all trigger objects are reported in the event log. For more information on using
the event log, see Using the event log (on page 2-117).

Running the trigger model

You can run the trigger model when the instrument is controlled either locally or remotely. If the
instrument is being controlled remotely, trigger model is the only method of triggering that is available.
If the instrument is being controlled locally, you can choose any of the measurement methods. Note
that if you change from remote to local control, the trigger model method remains selected until you
change it.
When you run the trigger model, the existing instrument settings are used for any actions unless you
assigned configuration lists to the trigger model.
Other commands can be executed while the trigger model is running if they do not conflict with trigger
model actions.
To change the measurement method, see Switching between measurement methods (on page 3-92).
2450-901-01 Rev. B/September 2013 3-107