Konica Minolta PCI-1712L user manual Post-Trigger Acquisition Mode

Chapter 5

Trigger Event

Acquired number of samples N

1st	2nd	3rd	N-2th N-1th Nth
			t

Figure 5-1: Post-Trigger Acquisition Mode

qDelay Trigger Acquisition Mode

In delay trigger mode, data acquisition will be activated after a preset delay number of sample has been taken after the trigger event. The delay number of sample ranges from 2 to 65535 as defined in DMA counter.

Delay-trigger acquisition starts when the PCI-1712/1712L detects the trigger event and stops when the specified number of A/D samples has been acquired or when you stop the operation. This triggering mode must work with the DMA data transfer mode enabled

Please specify the following parameters when using software in delay trigger mode:

wSet to Delay-Trigger Acquisition Mode

wThe sample clock source and sampling rate

wThe trigger source and edge type

wThe acquired sample number N

wThe sample number M delays after the delay-trigger event hap- pened

Trigger Event

Delay time M:

from 2 to 65535 samples

1 2 3 M-2 M-1 M

Acquired number of samples N

1st 2nd 3rd N-2 N-1 N

t

Figure 5-2: Delay-Trigger Acquisition Mode

qAbout Trigger Acquisition Mode

Use about-trigger acquisition mode when you want to acquire data both before and after a specific trigger event occurs. This operation is equivalent to doing both a pre-trigger and a post-trigger acquisition. When using software, please specify the following parameters, when using software in About-Trigger acquisition mode:

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