Trigger logic
Source
You may select one of the following trigger sources (R40):
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Shot |
The trigger pulse is triggered by the fieldbus via a control word. |
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Timer |
The trigger pulse is triggered at regular intervals by a timer. The frequency of the timer can be specified under General trigger settings. |
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Digital input |
The trigger pulse is triggered by the trigger input (24 V trigger). |
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Analog input 1 |
The trigger pulse is triggered by analog input 1. |
(KL3362 only) |
Analog input 2 |
The trigger pulse is triggered by analog input 2. |
Event
Here you can specify the event (R40) that triggers the trigger.
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Rising edge (default) |
The trigger unit responds to the rising edge of the input signal. The associated threshold level can be specified via the Trigger values tab. |
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Falling edge |
The trigger unit responds to the falling edge of the input signal. The associated threshold level can be specified via the Trigger values tab. |
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Positive pulse longer than set pulse width |
The trigger unit responds if the positive pulse width is longer than the configured pulse width, which can be specified via the Trigger values tab. |
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Positive pulse shorter than set pulse width |
The trigger unit responds if the positive pulse width is shorter than the configured pulse width, which can be specified via the Trigger values tab. |
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Negative pulse longer than set pulse width |
The trigger unit responds if the negative pulse width is longer than the configured pulse width, which can be specified via the Trigger values tab. |
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Negative pulse shorter than set pulse width |
The trigger unit responds if the negative pulse width is shorter than the configured pulse width, which can be specified via the Trigger values tab. |
Enable
Connect the lower input of the And gate with the desired function in order to specify when the And gate should switch through a trigger pulse (R40).
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Always enabled |
The trigger pulse is always switched through. |
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Digital input High |
The trigger pulse is switched through, if the trigger input (24 V trigger) of the oscilloscope terminal is on High potential. |
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Analog input 1 above switching threshold |
The trigger pulse is switched through, if the signal at analog input 1 of the oscilloscope terminal increases above the switching threshold 2. The threshold level can be specified via the Trigger values tab. |
(KL3362 only) |
Analog input 2 above switching threshold |
The trigger pulse is switched through, if the signal at analog input 2 of the oscilloscope terminal increases above the switching threshold 2. The threshold level can be specified via the Trigger values tab. |
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Digital input Low |
The trigger pulse is switched through, if the trigger input (24 V trigger) of the oscilloscope terminal is on Low potential. |
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Analog input 1 below switching threshold |
The trigger pulse is switched through, if the signal at analog input 1 of the oscilloscope terminal decreases below the specified switching threshold 2. The threshold level can be specified via the Trigger values tab. |
(KL3362 only) |
Analog input 2 below switching threshold |
The trigger pulse is switched through, if the signal at analog input 2 of the oscilloscope terminal decreases below the specified switching threshold 2. The threshold level can be specified via the Trigger values tab. |
Action
Connect the output of the And gate with the desired function in order to specify which task should be triggered.
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Reset the timer (chronometer) to zero (R40.2) |
Resets the timer back to zero. The timer will start running again automatically immediately. |
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Save timer (chronometer) (R40.3) |
Saves the current value of the running timer at the trigger instant. |
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Set digital output (R40.4) |
Sets the digital output, e.g. to the synchronous triggers of the second oscilloscope channel of a KL3362. This function must be released with bit 2 of the control byte 1 (CB1.2) |
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Start recording (R40.5) |
Starts the recording |
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Enable trigger unit 2 (R40.5) |
If the output of the And gate in trigger unit 1 is connected with the function Enable trigger 2, the trigger signal is transferred to trigger unit 2, which can be accessed via the Unit 2 button in the Selection field for parameterization. |
(KL3362 only) |
Enable trigger unit 3 (R40.5) |
If the output of the And gate in trigger unit 2 is connected with the function Enable trigger 3, the trigger signal is transferred to trigger unit 3, which can be accessed via the Unit 3 button in the Selection field for parameterization. |
(KL3362 only) |
Enable trigger unit 4 (R40.5) |
If the output of the And gate in trigger unit 3 is connected with the function Enable trigger 4, the trigger signal is transferred to trigger unit 4, which can be accessed via the Unit 4 button in the Selection field for parameterization. |