ADLINK Technology MCM-216, Руководство пользователя

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Web Console 43
MCM-216/218
Delay-Trigger Acquisition (no retrigger)
Delays data collection after the trigger event, as shown. The delay
count is specified by a 32-bit counter value, such that the maxi-
mum delay count is (2
32
-1) when the minimum delay count is 1.
Figure 3-23: Delay-Trigger Mode Operation
Middle-Trigger Acquisition
Middle-trigger acquisition is indicated when data is to be collected
before and after the trigger event. The amount of stored data
before and after trigger event can be set individually (M and N
samples), as shown. Please note that M+N must be equal to or
less than 8k samples for all analog input channels, and that the
trigger event can only be accepted when the specified amount of
data has been acquired (M samples), otherwise the trigger event
will be ignored.
Figure 3-24: Middle-Trigger Acquisition
Time
Ɣ Operation
start
Trigger
Data
Ɣ Trigger Event
Occurs
Ɣ Acquisition stop
Ɣ Begin to transfer data
to system
N samples
Ɣ
Acquisition start
Delay Time
Time
Ɣ Operation start
Ɣ Acquisition start
Trigger
Data
Ɣ
Trigger Event Occurs
Ɣ Acquisition stop
Ɣ
Begin to transfer data to
system
N samples
This data is
discarded.
Only acquired N
samples will be
transferred back to
system.