Features and Functions 3
Keysight 34420A User’s Guide 97
Internal Triggering In the internal trigger mode (remote interface only), the
trigger signal is always present. When you place the meter in the wait-for-trigger
state, the trigger is issued immediately. This is the power-on trigger source for
remote interface operation.
To select the internal trigger source, send the following command. The
CONFigure and MEASure? commands automatically set the trigger source to
IMMediate.
TRIGger:SOURce IMMediate
After setting the source to IMMediate, an INITitate or a READ? command will
trigger the measurement.
Software (Bus) Triggering The bus trigger mode is available only from the
remote interface. This mode is similar to the single trigger mode from the front
panel, but you trigger the meter by sending a bus trigger command.
– To select the bus trigger source, send the following command.
TRIGger:SOURce BUS
– To trigger the meter from the remote interface (GPIB or RS-232), send the
*TRG (trigger) command. The *TRG command will not be accepted unless the
meter is in the wait-for-trigger state.
– You can also trigger the meter from the GPIB interface by sending the
IEEE-488 Group Execute Trigger (GET) message. The meter must be in the
wait-for-trigger state. The following statement shows how to send a GET from
a Hewlett-Packard controller.
TRIGGER 722 (group execute trigger)
To Next Page
Loading...
