Vi to manipulate test panel line 0 & 1, output port 0, PCI-6503, High & Low

I need to develope a vi that will manipulate lines 0 & 1 of output port 0 High and Low in the test panel for PCI-6503 CAN card in MAX. Line 0 wil be a constant High but line 1 will be a timed pulse starting Low then pulsing High and then returning to a steady state Low. Any thoughts?
Thanks,
John Ely

Hi John,
Are you referring to the NI PCI-6503? It sounds like your question is regarding digital output with this card. If so, I think it would be better to post a new thread on the Digital I/O Board.
If you are using CAN, could you double check and see what CAN card you are using?
Have a great day!
Adam W
National Instruments

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My daq card PCI6025e' digital ports PA,PB,PC are in high state and cannot be changed even in MAX 2.1 testing panel and continuously output 5 volts even set for output.

my digital ports PA,PB,PC are in high state and cannot be set low even if it is set for outputs.
Thanks

The MAX utility is the closest to the driver level and will eliminate software configuration as a possible issue. Please disconnect anything that you have connected to the DIO lines.
Use the MAX test panel for your DIO lines, configure them as outputs, and set them to a low state. Use a multimeter (DMM) to observe the line state. If it is still high then you may have a problem with your hardware. If this is the case, I advise calling National Instruments support and investigate a possible RMA (repair).
Best Regards,
Justin Britten
Applications Engineer
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PC-DIO96 works in test panels and MSVB but fails in MSVC++

This used to work fine, but no longer works.
In test panels and MS Visual Basic I am able to read and set the DIO lines with no problems. In MS Visual C++ I am now getting a dimmed light on my relays instead of an off condition when I attempt to toggle relays. Inputs also do not change states. The same hardware works in the NIDAQ test panels and under MS Visual Basic. What is going on???
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Attachments:
NidaqTest.cpp ‏3 KB

If your LED outputs are dimming instead of turning on, it sounds like they may be rapidly switching on/off. Try stepping through your program to see if this is happening.

6025e MAX test panel

I'm using MAX test panel to test my digital I/O pins, however i couldn't find any manual explaining the function of the test panel. there are 2 tab on DIO. what are the operation/function in the 2 DIO tab?
First Digital IO tab
a. which port does it test?
b. why can't i select the input state?
For the second Digital IO tab
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b. why can't i set the input i want for the input port?
c. how i check if the digital IO port is reponding?
thks & best regards

For the PCI-6025E, the number of the digital ports are :
0: DIO
2: PA
3: PB
4: PC
There is a big difference between DIO and the 3 other digital ports. While each line of DIO can be individually set to be a DI or a DO, all 8 lines of PA, PB or PC must have the same direction.
See the user manual for more information.
The first tab is used for the DIO port (DIO0 to DIO7). You can set the direction of each single line.
The second tab allows you to define one input port and one output port (eg PA (2) = DI and PB (3) = DO). You can then see the state of each line of the input port and set the state of each line of the output port.
You can easily test your hardware by wiring a DO line to a DI line (eg PA0 to PB0). Change state of DO and check if DI is co
rrect.

Test Panel in VI format

I am looking for the Measurement & Automation Explorer (MAX) Test Panel in a VI format. It has the ability to write or read from all lines in the DAQ. Each line is modeled as an LED.
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Greetings,
I am not aware of the existence of the Test Panel as a VI, but the example "Dig Multi-line Direction (E).vi" does accomplish what you have described. You can assign each line's direction, and they are represented by an LED (input) and a switch (output). This example is installed with LabVIEW.
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Hi
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Regards

duplicate post. Please don't ask the same question to multiple boards. Your question doesn't seem related to the student edition or Elvis either.

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Hi All:
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ob0!sc1!md1!0
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Thank You
Peter Waltz

Hello Peter,
If you are reading 0.0184V on your analog input, then it probably means that you are reading nothing at all.
This seems like a driver issue more than anything else. Make sure that you are the latest possible driver installed for this setup. Traditional DAQ 7.0 or 7.1 are compatible with LabVIEW 6.0 and should work fine.
Once you have the right driver, try connecting your analog output to your analog input. Output a sinewave or a specific voltage and see what the AI reads.
Most likely the driver upgrade would solve your problem.
You can download the drivers from here.
Chetan K
Application Engineer
NI
Message Edited by CKap on 05-08-2006 02:57 PM

Correct termocouple reading by VI channel test panel but not by DAQ wizards.

1. I am getting correct termocouple readings when using the virtual channel test panel, but not when using labView software created by the DAQ wizards. why and how to solve it?
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Neal Pederson, President, VI Control Systems
1923 Mendius Lane, Los Alamos, NM 87544
TEL: (505) 662-1461, FAX: (603) 388-4969
[email protected], www.vicontrols.com
"DAQprojects" wrote in message
news:[email protected]..
> 1. I am getting correct termocouple readings when using the virtual
> channel test panel, but not when using labView software created by the
> DAQ
wizards. why and how to solve it?
>
> 2. I am unable to switch on 6V relay using DAQ card's output voltage
> but able to do so using other voltage supply. How to solve this?

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card 0: Intel [HDA Intel], device 3: HDMI 0 [HDMI 0]
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Solved!
Go to Solution.

Thanks, Broken. I am getting a time out error. Clearing the buffers doesn't seem to be making a difference. This is baffling to me. I must be missing something fundamental.
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DIO won't work until I use the Test Panel

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Matthew Fitzsimons
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LabVIEW 6.1 ... 2013, LVOOP, GOOP, TestStand, DAQ, and Vison

I am saying:
Are you saying that after installing the driver and your device you had to open MAX and use test panels before your device would work with your application, and now you can always use your application (even after restarting your computer) without opening MAX? - Yes
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Matthew Fitzsimons
Certified LabVIEW Architect
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Test Panel for 6704 no examples?

I'm trying to find an example vi that support our PXI-6704 card. Doesn't seem Ni has any built in, I'm wondering if "Getting started with analog output.vi" will work.
I don't deal with the programming or with the electronics so I'm out of the loop here.
In MAX were using a Remotei-daq config so making a test panel isn't possible.
I need a vi that acts like a test panel and shows what properties can be changed.
Any help at is all is welcome.

Hi JR,
There are lots of examples for this board. The PXI-6704
will function the same way as any other analog output board. If
you are using LabVIEW, then you can easily find a wealth of examples
that can run on the PXI-6704 by opening LabVIEW and going to
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Once there you should be able to run any of these examples.
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Otis
Training and Certification
Product Support Engineer
National Instruments

Test panel

Hi,
I have a queston on "Acquisition Mode" in Test Panels. What are the differences of Continous, Finite and On demand?
2) How do you set "Rate" and "#Point to read" to measure a signal? What is minimum value? Which one is for measure sth accurately? Is "#Points of read" talking about per second to count?
3) I heard I can read current on an analog line, I mean going into the Measurement and Automation Explorer (MAX) and creating an analog input current task. This task will require you to provide the shunt resistor value, so you will need to add a resistor. Can we do that in test panel? How about the shunt
resistor value? Where should we add? Do you know about it?
Many thanks if you can reply to me promply. I am in a urgent.
I wish you can answer my questions directly.

The on demand acquisition mode configures a task to read samples one at
a time using software timing, finite acquires a predetermined number of
samples using hardware timing, and continous acquires an unlimited
number of samples also using hardware timing.
The rate control only applies to finite and continous tasks, and it
indicates how many samples per second are to be acquired. The "#
of points to read' is how many total samples in a finite acquisition,
or how many samples per read (per update of the test panel graph).
Unless your hardware is capable of measuring current directly using an
internal shunt resistor, you will need to wire an external shunt
resistor before making current measurements. The current input
task then uses the value you provide as the external shunt resistance
to convert the voltage read from the device into a current. The
value of the shunt resistance should be chosen such that the amount of
power consumed is reasonably low, yet still produces a large enough
voltage to be sensed by the DAQ device.
The device test panels are intended to verify device configuration and
external connections, so they do not provide for the application of an
external shunt resistor. However, you may use open a test panel
from the analog current input task and the correct scaled measurement
can be viewed from there.
I hope this answers most of your questions. If not, please reply back.
Jason

BK Precision device works in VISA test panel but fails when using driver

I am trying to control a BK Precision XLN power supply. I have set it up as a TCPIP VISA instrument using sockets (port 5025). It validates fine in NI MAX, and when using the VISA test panels I can write to and read from it (although I get a timeout error on the read if I specify too many bytes). When I use the supplied instrument driver blocks in LV, VISA read commands always timeout and fail to return anything, regardless of how many bytes are specified.

I don't think it is a VXI-11/LXI instrument, it did not autodetect and I had to use the 'Manual Entry of Raw Socket' option to set up the device. I am sending a termination on the write (\n), if I don't send a termination on the read it captures the read but then gives a timeout error if waiting for more bytes, if I use a termination cahracter on the read it functions as you would expect, except that it returns multiple termination characters (line or carriage feeds) in some messages so you would have to perform multiple reads to get the whole message. (this is all in the test panels, I haven't gotten anything back using the VISA blocks in a VI)
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Thanks,
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Vi to manipulate test panel line 0 & 1, output port 0, PCI-6503, High & Low

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