Signal Conditioning

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preventing false trigger in S series Device

I have a PXI 6133 and currently have a task set up to begin with an analog edge trigger, however the line experiences a fair bit of noise due to solenoid power lines. I know that some other devices are able to use the minimum pulse width option in the daqmx triggering property nodes, but as far as i can tell S series devices don't. Does anyone know of a work around for this.

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Hi fchacon,

 

One approach may be to reduce the environment-induced noise in your system. The Field Wiring and Noise Guide and these Five Tips could be a good starting point for you. 

 

Another possible option is using an Analog Edge Reference Trigger that accounts for the noise in your system. This may allow you to set a trigger higher than the desired level, but incorporates the noise from our environment.

Briana P.
Licensing
Sr SW Engineering Manager | NI R&D
ni.com/support
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If you have a spare analog input (and have a low impedance source),  you can try a simple analog lowpass filter (RC) ....      but doing the cabling rigth and reduce EMI is always the best option

Greetings from Germany
Henrik

LV since v3.1

“ground” is a convenient fantasy

'˙˙˙˙uıɐƃɐ lɐıp puɐ °06 ǝuoɥd ɹnoʎ uɹnʇ ǝsɐǝld 'ʎɹɐuıƃɐɯı sı pǝlɐıp ǝʌɐɥ noʎ ɹǝqɯnu ǝɥʇ'


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