Activating/Deactivating IEPE power switch for voltage 9234

I use this material: NI USB9162 or cDAQ9172 with the NI 9234 module. I want to be able to select weather to use regular accelerometers or IEPE accelerometers with the 9234. I built a LabVIEW Vi where I want to be able to configure the channel of the accelerometer as a voltage channel and input sensitivity data later. Here are my experiences:

  1. If I use "Voltage Custom with excitation" I get the message "no device supported found. What happens in MAX 'task to create', labview DAQassistant or 'DAQmx create a channel' + 'personalized with excitation voltage.
  2. If I use 'DAQmx create channel' (with or without excitation) and define the source of excitation and value as a property I still have the same problem
  3. If I do as well as in 1, but with the acceleration I don't have no problem Iex source parameter and value. But this isn't what I want.
  4. If I use "IEPE the enable" inside the MAX test panels I have no problem using the IEPE accelerometer and get the tension
Can someone help me understand how I could activate an IEPE accelerometer as a voltage source?

The problem is that you are using HAVE. Excit.DCorAC. This isn't the right to property.  AI. Excit.DCorAC must be set to DC for the 9234, by default.

If you want to configure channel matching, you must use I. Mating.  You can get this in analog input-> General Properties-> entry Setup-> coupling

If you want to configure each channel separately, use Active Channel in the node of your property to select a channel.  All the properties that you configure in this node is not available for the specified channel.

Tags: NI Hardware

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