Step 8 : Set Start Condition

The sampling start condition is set by function AioSetAiStartTrigger.
The control of Sampling start and stop are independent, and they are set separately.

Ret = AioSetAiStartTrigger ( Id , AiStartTrigger )

The values and meanings set in AiStartTrigger are as follows.

The values that can be set depend on the devices.
Please refer to [Specifications based on devices] of function AioSetAiStartTrigger.

Software

Sampling starts immediately after executing the conversion start function (AioStartAi) under the set sampling condition, and stores the conversion data in memory.

External Trigger Rising / Falling Edge

After executing the conversion start function (AioStartAi), it is in the status of waiting for the external control signal.
When an external control signal (TTL) in the preset edge direction is input, sampling starts and stores the conversion data in memory.

Level Comparison / In Range Comparison / Out Range Comparison

After executing the conversion start function (AioStartAi), compare the preset value of comparison level with the magnitude of the analog signal of the specified channel.
Start storing the conversion data, when they match the comparison condition.

When level comparison is used as the start condition, please set the level comparison start condition.

Event Controller Output

Start storing the conversion data with the output signal from event controller which is the start condition.
Please refer to the tutorial of Event Controller.