how do we record the information in NI-9233

[NI9233]

We are using NI - 9233 for the vibration measurement of vibration.

We have a signal input of vibration from a sensor .

We will display the output .

and we need to record the information when the vibration range goes above 20g .

what we want to know is How do we write the program to record the information when it goes high as much as 20g

[Chris_K_]

What you are looking for is analog triggering however the NI 9233 doesn’t support analog triggering.  There are still a few way that you can still accomplish what you.  If you are using the 9233 in a cDAQ chassis and you have access to a 9205 or 9206 (only cDAQ modules that support analog triggering) then you can do exactly what you need.  Have a look at the following knowledge base article that explains the steps and points you to an example program.

If you do not have access to these analog triggering modules, then you must perform the triggering in software.  Basically continually monitor the data being read from the 9233, and then when it reaches the desires value, in your case 20g, start recording the data.  This is not as simple as the analog triggering, nor is it ideal, however it may be what you are looking for.

Have a look at the following DevZone article for a good starting point.

Chris_K