Ideas for this problem

Question

I have been bogged down with the following problem for quite a while
now. The VI we developed doesn't wanna work at all. See if any of you
can figure out a way to solve the problem !!
Thanks in advance !!
Pankaj
From:
Pankaj Mohan
CIE 202 Department of IME
North Dakota State University, Fargo ND 58105
Phone: [phone]
Fax: [phone]
Email: [email protected]
We have two NI boards:
PCI-MIO-16XE-10 (Call it Device-1)
PCI-6111-E (Call it Device-2)
We have a RTSI bus between the two boards
We have LABView 5.1 on Windows NT
We have two sensors:
A Kistler Dynamometer (type 9257B) with 5 analog channels (Force-Z,
Force-X1, Force-X2, Force-Y1, and Force-Y2)
Physical Acoustics Corporation Acoustic Sensor (Model #R15 and Serial#
BN98) with 1 analog channel (Acoustic)
OBJECTIVE:
To use LABView 5.1 to collect data from both boards in a synchronized
manner.
The data collection process will depend on the amplitude of "Force-Z"
anaolog channel
on Device-1. The trigger value for the channel is a known constant.
Once the "Force-Z" analog
channel exceeds the trigger level, the data collection process starts
instantly on "BOTH" boards.
Device-1 should scan all 5 analog channels at 2 KHz and Device-2 should
scan Acoustic analog
channel at 1MHz, continously. The data collection process terminates
on "both" boards
simultaneously when the amplitude of the "Force-Z" analog channel on
Device-1 falls beneath
the trigger level.
Kistler dynamometer is hooked to Device-1 and Acoustic sensor is hooked
to Device-2.
In summary, we have the following:
- Both boards start data collection at the same instant
- Both boards stop data collection at the same instant
- Data collection is based on the amplitude of "Force-Z" analog channel
on Device-1
- Data collection for all the channels on both boards takes place only
when the "Force-Z" analog channel exceeds the trigger level
- Data is collected on the two boards at two different sampling rates
(2KHz on Device-1 and 2MHz on Device-2)
- The data collection time period is not known and will only depend on
the amplitude of the "Force-Z" analog channel on Device-1
PS: To reduce the contract cost, we would like you to primarily
concentrate on
- Synchronization using RTSI bus
- Analog trigger channel on Device-1 for starting and stopping the data
collection
- Different data collection rates on both boards
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Before you buy.

Answer 1

Okay, how much would you expect for making this kind of a VI for us.
Yes, these daq boards can certainly meet the acquisition rate !!
i would look forward to your reply !
pankaj
In article <[email protected]>,
"labview user" wrote:
> Ok, I think we can make this work for you. Assuming that the DAQ
boards
> meet the aquisition rates you describe.
>
> Are you soliciting for the services of a labview programmer? I
noticed that
> you have a mention of contracting cost at the bottom of your post.
>
> >We have two NI boards:
> >PCI-MIO-16XE-10 (Call it Device-1)
> >PCI-6111-E (Call it Device-2)
> >
> >We have a RTSI bus between the two boards
> >
> >We have LABView 5.1 on Windows NT
> >
> >We have two sensors:
> >A Kistler Dynamometer (type 9257B) with 5 analog channels (Force-Z,
> >Force-X1, Force-X2, Force-Y1, and Force-Y2)
> >Physical Acoustics Corporation Acoustic Sensor (Model #R15 and
Serial#
> >BN98) with 1 analog channel (Acoustic)
> >
> >OBJECTIVE:
> >To use LABView 5.1 to collect data from both boards in a synchronized
> >manner.
> >The data collection process will depend on the amplitude of "Force-Z"
> >anaolog channel
> >on Device-1. The trigger value for the channel is a known constant.
> >Once the "Force-Z" analog
> >channel exceeds the trigger level, the data collection process starts
> >instantly on "BOTH" boards.
> >Device-1 should scan all 5 analog channels at 2 KHz and Device-2
should
> >scan Acoustic analog
> >channel at 1MHz, continously. The data collection process terminates
> >on "both" boards
> >simultaneously when the amplitude of the "Force-Z" analog channel on
> >Device-1 falls beneath
> >the trigger level.
> >
> >Kistler dynamometer is hooked to Device-1 and Acoustic sensor is
hooked
> >to Device-2.
> >
> >In summary, we have the following:
> >- Both boards start data collection at the same instant
> >- Both boards stop data collection at the same instant
> >- Data collection is based on the amplitude of "Force-Z" analog
channel
> >on Device-1
> >- Data collection for all the channels on both boards takes place
only
> >when the "Force-Z" analog channel exceeds the trigger level
> >- Data is collected on the two boards at two different sampling rates
> >(2KHz on Device-1 and 2MHz on Device-2)
> >- The data collection time period is not known and will only depend
on
> >the amplitude of the "Force-Z" analog channel on Device-1
> >
> >
> >
> >PS: To reduce the contract cost, we would like you to primarily
> >concentrate on
> >- Synchronization using RTSI bus
> >- Analog trigger channel on Device-1 for starting and stopping the
data
> >collection
> >- Different data collection rates on both boards
> >
> >
> >Sent via Deja.com http://www.deja.com/
> >Before you buy.
>
>
Sent via Deja.com http://www.deja.com/
Before you buy.