Gossen Metrawatt GmbH
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2.8
Triggered Operation
The triggered operation is mainly used to make the load keep synchronized with other test equipments or events. SPL Series electronic
load provides various triggering modes, which can be applied to the following occasions:
•
Triggering a preset level
Transfer all pending preset levels to the immediate levels. For the presently active mode, the new level will appear at the input at once if
the input is turned on. For the modes which are not presently active, the preset levels will not take effect at the input until the corre-
sponding mode becomes active.
•
Triggering a transient pulse
Generate a transient pulse in accordance with the preset transient parameters, when pulsed transient operation is active.
•
Triggering a transient toggle
Switch the input between the transient low level and transient high level in accordance with the preset transient parameters, when the
toggled transient operation is active.
•
Triggering a list test
Enable the present list test when the list operation is active.
Three triggering methods are available for remote control: GPIB <GET> signal, the *TRG and TRIGger commands.
The external trigger input terminal and
key +
key on the front panel of the load can be used to trigger as well.
The load has three triggering modes: BUS, EXTernal and HOLD.
•
The BUS mode:
the trigger source is GPIB <GET> signal, or *TRG command.
•
The EXTernal mode:
Choose the External trigger input terminal or
key +
key on the front panel as the trigger source.
The input signal at the External trigger input terminal is TTL, the falling edge (signal) is triggered.
The HOLD mode:
Use TRIGger:IMMediate command as the trigger source. At this time, all other triggering methods including *TRG
become invalid.
Note
The TRIGger:IMMediate command can be used in all three triggering modes. The triggering modes can be selected via the
remote command only (TRIGger:SOURce BUS; TRIGger:SOURce EXTernal; TRIGger:SOURce HOLD).
