TriggerType (Data Acquisition Toolbox)

TriggerType specifies the type of trigger to be issued. All triggers have the action of setting Logging (AI) or Sending (AO) to On. Some trigger types require trigger conditions. Trigger conditions are specified with the TriggerCondition property.

Characteristics


Device Objects	AI, AO
Class	Common
Access	Read/write
Data Type	Enumerated list
Modify while Running	Yes

Values


`{Immediate}`	The trigger occurs immediately after `start` is issued. `Logging` is set to `On` once the `start` function is issued. Pretrigger data cannot be captured.
`Manual`	The trigger occurs immediately after the `trigger` function is issued. `Logging` is set to `On` once the `trigger` function is issued.
Software	The trigger occurs when the associated trigger condition is satisfied. Trigger conditions are given by the `TriggerCondition` property. (AI only).

National Instruments Values


HwDigital	The trigger source is an external TTL signal (AI and AO). Pretrigger data cannot be captured.
HwAnalogChannel	The trigger source is an external analog signal (AI only).
HwAnalogPin	The trigger source is an external analog signal (AI only).