Trigger Event Sources

The parameters TrigMode and NextTrigMode establish rules attributing a source to the trigger events (TE). The event triggering the first phase of an acquisition sequence is called the initial TE. The events triggering the subsequent phases of an acquisition sequence are called the subsequent TE.

TrigMode	Initial TE	NextTrigMode	Subsequent TE
IMMEDIATE	SAS	REPEAT	Previous EAP
HARD	Hardware line edge detection	HARD	Hardware line edge detection
SOFT	ForceTrig set to TRIG	SOFT	ForceTrig set to TRIG
COMBINED	As HARD or SOFT which occurs first	COMBINED	As HARD or SOFT which occurs first

The channel is armed when the following conditions are met:

The acquisition sequence is running
The previous acquisition phase is completed
The next acquisition phase is due to come at the next TE