Discrete Triggering

[Dhawal]

Hi,
I am trying to acquire 5 analog signals from a machine, analyze the data, and output a changed value of one or two analog signals and send it back to the machine (in order to control it). I am using cDAQ 9172 along with 9215 and 9263.
I have a limitation in the machine. I would not be able to collect more than five analog signals from the machine. I want to collect one signal for triggering, but at the same time I do not want to occupy that signal only for triggering purpose. I would like that signal to act as a trigger, but once it triggers the signal, I would want it to start collecting some other analog signal.
Please let me know if this is possible.

Thanks in advance.

Dhawal

[David L.]

Hi Dhawal,

Is this the same question as your previous post, here? If you have more questions about the same issue, let's please continue with the other post so the community can follow along. If there is anything different, please let me know.

[Dhawal]

Hi David,
I apologize for late reply. I was trying to find a simpler way to trigger my prototype. I eventually found one way to trigger it. I am attaching the VI (used labview 8.2.1).
I have one more question, and I m not sure whether I should post it here or as a seperate question.
I have added the trigger, which would be true after the condition has reached. once the condition has reached it would form an array of 512 elements, and would send an output from C++ code. The machine is responding as per the output value (i.e. the machine is able to change the parameter as given by the C++ code). The problem is, once the triggering is over (i.e. once it is false again), I am still sending the last changed value as suggested by the C++ code. I would like to get a zero voltage as soon as the triggering stops.
I dont know how to get this going.
Please help me with the same. If possible can u send me an example of the same, or change it in my prototype itself, so that I can modify it accordingly.

Thank you in advance.

Dhawal

[David L.]

Dhawal,

Let’s continue with your other post, here. The VI in this post and the other one are different. I will continue with the other post, and you can post a newer version if necessary.