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LinMot
Trig on Bit
Trig Manual
5.9.3 Determining the sample rate
Normal
Pretriggered
Delayed
Multishot
User Manual V1.01
The recording is started upon a state change of the selected bit. In Figure 5-15 the
trigger is set to start the recording when a following error occurs on drive C. This setting
is used mostly in combination with the "Pretrigger" mode (see also chapter 5.9.3).
Figure 5-15: Trigger mode 'Trig on bit'
The recording is started upon clicking on the Start button.
The rate at which data values are sampled is specified in this field. This setting is always
valid for both channels. It is further possible to select the sampling mode.
In the "Normal" mode the selected channels are recorded without delay after the trigger
signal. This means the recording is started as soon as the trigger condition is satisfied.
It is often interesting for the user to be able to record events that happened just before
the trigger signal was released. A typical example would be the occurrence of a
following error. These events can be recorded in the pretrigger mode. The setting of a
pretrigger is given as a percentage. A pretrigger of 80% would cause 80% of the
recording time to be dedicated to events preceding the trigger condition and 20% of it to
be dedicated to events following the trigger.
In some situations it can be advantageous to start recording data after a certain delay
following the trigger condition. In the "Delayed" mode the user can set a value for the
delay time.
It is sometimes possible that during the commissioning of a system an error occurs
during one of maybe ten movements. In this case it would be difficult to detect and
record the error with the Oscilloscope, in order to be able to analyze the signals and
understand the cause of the error. The "Multishot" function gives the user the possibility
to record this kind of errors. As in the other modes, a trigger condition must be set here,
too. The difference is that the data are not transmitted to the PC automatically after the
recording is done. The user initiates the transmission manually by means of the "Shot"
button. This enables the user to wait for the error to happen and then display the
recorded data on the PC by clicking on the "Shot" button. The "multishot" function is
only available when neither the trigger mode "Manual" nor the recording mode
"Pretrigger" are selected.
Configuration Software
Figure 5-16: Setting the sample rate
5-20
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