Failure of NI DaqMX

[paulknapp]

Thank you for contacting National Instruments.  Your technical support
questions are important to us.  In order to ensure a high level of service
and fast resolution, we ask that all electronic support requests be
initiated on our web site.  Please resubmit your technical support question
on our Request Support page at http://www.ni.com/ask.  Your original
question is included below.

Our Request Support page saves you time by giving you possible solutions to
your questions and allowing us to ask important configuration questions up
front. This eliminates the need for multiple clarification e-mails and
makes the support process more efficient on both sides.  After you have
submitted your new request, subsequent correspondence for that request is
handled through e-mail.

If you do not have access to the Web, as an alternative you can contact us
via phone.  For contact details, please refer to your product or service
agreement literature.

If you believe you have received this message in error, please contact us
at AECustIS@ni.com.

Best Regards,

National Instruments Support

----------------------------------------
Please reference the attached email document below.

I apologize for replying after so long.

Here is the information that I can give you after further testing and
hopefully
answering you questions.

I started MAX - NI DAQPad6015 s/n E264B1, NI-DAW version 8.3.  Passed self
test
and reset succesful.

1. I did connect a 2.36 Vdc battery between terminals 1 (+) and 3 (-).  I
observed the Dev1/Ai0 with max input 5, min input 0, on demand NRSE.   The
AI
input started a 0V and increased in an exponential manner to 5V where it
remained.

2. Connected a 2.36V battery between terminals 1 (+) and 17 (-) with Dev1 /
Ai)
on demand differential, with max input = 5 and min input = 0.  Reset
succesful.  Test panel shows Ai going from 0 to 5 V with battery connected.

3. Also set max input to +10 and min to -10.  Ai goes to 10 V with 2.36
battery
connected as in 2.

4.  Turned 6015 Off and back On and repeated 3.  Self test succesful and
reset
successful.  Ai goes to +10V.

5.  To the best of my knowledge, nothing that would result in device or
component failure has occured to this unit: no temperature extremes, no
shock,
no vibration, no over voltage.  I has been in a lab environment since
purchase.

6.  I have not tried AO with 6015.

7.  I would guess that I have had the device for 4 years.

Appreciate all your help and I would really like to get this fixed as I am
going to need it right away.

Thanks again and have a great day.

Reply-To: <support@ni.com>
From: <support@ni.com>
To: "paulknap" <paulknap@telus.net>
References:
<OFCE00F14E.64BFF655-ON862575F9.000F2396-862575F9.000F23F8@LocalDomain>
Subject: Re: (Reference#7251732) daqpad 6015 needs repair: analog input
goes to
max value with grounded input
Date: Mon, 20 Jul 2009 13:52:01 -0600
Message-ID: <OF86257517.00680809-ON862575F9.006A986C@ni.com>
MIME-Version: 1.0
Content-Type: text/plain;
    charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
X-Mailer: Microsoft Outlook, Build 10.0.6863
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3664
Thread-Index: AcoJc43lSJs8VE1vQaGzcJyagNwkvQ==
In-Reply-To:
<OFCE00F14E.64BFF655-ON862575F9.000F2396-862575F9.000F23F8@LocalDomain>
X-MIMETrack: Serialize by Router on MailServ58-US/AUS/H/NIC(Release
8.0.2|August 07, 2008) at 07/20/2009 02:52:04 PM

Note:  Your reference number is included in the subject field of this
message.  It is very important not to remove or modify this reference
number, or your message may be returned to you.

Paul,
Thanks for contacting National Instruments support.  Thanks for the
description of the unexpected behavior that is happening with your =
DAQPad
6015 device.  I have a few questions for you:
- Have you tried connecting a simple battery (or other constant DC =
voltage
source) to the input to see if you get the same behavior, where the =
device
seems to rail?
- To your knowledge, has this device worked properly in the past?  If =
so,
what happened between when it was working and not (any power surges,
computer failures, etc)?
- You mentioned that you are using LabVIEW currently to read from the
device.  Have you tried using Test Panels in Measurement and Automation
Explorer (MAX)?
- Are you having trouble with any of the other functions on the DAQPad?
- If you do a self-test in MAX, does the device pass?
- How long have you had the device?

I look forward to hearing from you so we can determine how to proceed.
Thanks,

Regards

Christina Wolfskill
Applications Engineer
National Instruments
http://www.ni.com/support

[Dennis_Knutson]

duplicate post