Elsys AG
www.elsys-instruments.com
8
TraNET FE User Guide
2.3.4 ECR (Event Controlled Recording)
This mode is optional!
The ECR mode allows targeted acquisition of cyclic or sporadically arising events. This implies
that the registration of measuring data only occurs if certain signal conditions (trigger, time
window, repetitions, etc.) are fulfilled. Thus many unwanted and unneeded signal data will not
be stored.
• The digitalized signal will be stored to the
on-board memory which acts as a ring
buffer.
• As soon as the trigger is released, a block
of samples will be read from the ring buf-
fer and will be saved to the hard disk.
• If a new trigger event within the actual
block occurs, a new overlapping block will
be saved.
• If the ring buffer is full, the oldest mea-
surement data will be overwritten with
new incoming data. Usually, the over-
written data would be transferred to the
hard disk before this happens. If too many
events occur in a period of time, the ring
buffer may overflow.
2.4.2 ECR Dual Mode
An other feature of ECR is the “Dual Mode”. It allows to store a continuous measurement at a
slower sampling rate than the captured blocks. For example fast transient can be captured at 10
MS/s by the triggered blocks while storing slower signals at 100 kHz over a long period of time.
