Lenze Engineer v2.21 - Manual (Page 118)

Device functions with active online connection
Data logger
118
Lenze · Engineer · 2.13 EN - 10/2014
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7.7.2.3 Defining the trigger condition
The trigger condition serves to define at what time the recording is started. The data logger provides
different trigger conditions which serve to control the recording of the measured values.
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How to define the trigger condition:
1. When the cursor display is activated:
Click the Trigger button to show the input fields for configuring the trigger condition.
2. Click the button after the first input field to open the Select trigger source dialog box:
3. Select the required trigger source:
• Channel: Triggering can be configured by means of the Vertical table.
• Variable: It is triggered via any parameter. In contrast to triggering to a channel, no
recording channel is required here.
• Force trigger: No trigger condition, recording starts immediately after the start
4. Click OK to accept the selection and close the dialog box again.
5. Set trigger value, delay and edge.
• Further information on this can be obtained from the following table.
Setting Function
Trigger value Value from which on triggering is activated.
• The trigger level is not effective for triggering on Boolean variables.
Deceleration Time delay between recording and trigger event.
Pre-trigger Select a negative delay time to detect signals prior to the trigger event.
• The trigger time is designated by a dotted line in the diagram.
• With triggering on occurrence of an event, it is thus possible to detect the values
that have caused the event.
Trigger event
Trigger
delay
(negative)
Trigger level