Microtronics myDatalogNANO Ex, User Manual

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Chapter 9 User interfaces
9.2.1.3.4 Trigger
If an universal input is operated in digital mode, there are two different types of triggers:
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Event trigger (MS, XM)
In contrast to the level triggers, the relevant operation (e.g. start measurement) is only
executed once when the trigger event occurs. With the help of the "Edge" configuration
parameter, it is specified whether the rising, falling or both edges initiate the trigger event.
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Level trigger (QU, SL, ON)
A "high" at the universal input initiates the trigger. A "low" at the universal input resets the
trigger. The relevant operation (e.g. fast recording) is executed as long as the trigger is active.
The option selected via the "Edge" configuration parameter is not relevant to the level trigger.
If it is necessary for the trigger to be initiated by a "low" at the universal input and for it to be
reset by a "high", the input signal must then be inverted using the "Invert" configuration
parameter located in the "Basis" tab.
"Digital"
mode Event
trigger MS Start measurement cycle immediately
XM Initiate transmission
Edges Selection of the edge at which the trigger should be initiated
rising
Rising edge initiates the trigger.
falling Falling edge initiates the trigger.
both Both edges initiate the trigger.
Level
trigger QU Fastrecording (record interval = record interval / factor)
SL Slow recording (record interval = record interval * factor)
ON Activate online mode
Edges not relevant for the level triggers
All other modes QU Fastrecording (record interval = record interval / factor)
SL Slow recording (record interval = record interval * factor)
RO Switch on recording
RF Switch off recording
XM Initiate transmission
ON Activate online mode
Level Levels for initiating the trigger
Greater or
equal
The measurement value must be greater or
equal to the level to initiate the trigger.
Less or equal The measurement value must be less or equal
to the level to initiate the trigger.
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