Use front panel as a button

Hello!
Is there any way i can make the whole front panel working as a button? I want to be able to click with the mouse anywhere on the front panel and it should be registerd as a OK click.
Best regards blyarn

Here, this should do what you want. It is messy and has no error handling/typedefs etc because I'm doing it while I watch football, so I'm not too concerned about my programming practices . But basically what it does is, the LED turns on and it tells my even handler loop that it is now on, and it stores the time it turned on in a shift register. Now, the event loop knows that any clicks on the front panel should send a queue message with the time of the button click. So, when the user presses the panel it queues up the time of the button press and in the bottom loop that message i dequeued and the subtraction is done. I know this may be a bit overwhelming with the handshaking so post back if you don't udnerstand anything. The reason I do it this way is because if you queue up a message saying the button was clicked and THEN get the time stamp for the button click once the queue message in the bottom loop is received, you could potentially have some time delay if processing is taking a long time. Then it looks like the button click took longer to happen then it really did. Does that make sense? I'm having a hard time writing it out clearly. Hopefully someone can translate this into english
CLA, LabVIEW Versions 2010-2013
Attachments:
time to push.vi ‏37 KB
time to push.png ‏79 KB

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I want to publish my data using datasocket connection on the net and I want to use Front panel binding. Can I?

I want to publish my data on the net.
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Hi,
I use LV DSC RT 8.2.1
I have a Vacuum System That includes signals from - Pumps failure, Valves status, Vacuum gauge, start Pump ...
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if in the VI the status of Valve #1 is closed (before running it) then the Valve status is changing to Closed.
I want the Client VI to first read the Physical status of the instrument and then to change the Value if the User changes it.
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I know I can Deploy a lvlib in the Client Side and Item Bind to the Shared Variables or Use DataSocket.
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Sincerely Yours,
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Amitai Abramson,
Hello and thanks for using the NI Forums.
I'm glad that you've read the Using the LabVIEW Shared Variable Tutorial on our website. Check out these other resources:
Network Variable Technical Overview
Troubleshooting Network-Published Shared Variables
Why Do I See Unexpected Value Change Events for Shared Variables Using LabVIEW DSC?
All You Need to Know About Shared Variables
Creating a Value Change Event for Shared Variables
Alternative Method for Using Shared Variables Between Systems in LabVIEW 8.x
What Is The Difference Between Using Shared Variables And DataSocket VIs To Access OPC Tags?
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Using Local and Global Variables Carefully
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Message Edited by Ben S on 10-01-2009 06:05 PM
Ben Sisney
FlexRIO V&V Engineer
National Instruments

How to open front panel of a VI running in RT.

Hi,
I have an application to read the encoder position using the cRIO program. I have made an executable and this application runs as startup application whenever the controller reboots. Right now, i am accessing the VI of the startup exe through Remote Panel connection. This works fine but everytime i close the remote panel , i have to reboot the controller for the next view.
So is there any alterntaive to open the front panel of the VI.
I tried using VIServer but ran into errors. (i tried using front panel -open property node.did not work)
Also i do not have any VIs stored on the controller. Only the exe is stored on the ni-rt/startup folder on the RT controller.
Please let me know how to open this VI.
Thanks.

Hi Ben,
When i close the remote front panel the first time, i am terminating the RT VI which is running on startup.
So i had to reboot everytime to access the remote VI. I guess that the VI (exe) should be continuosly running when the RT is started up. The remote panel only should be opened and closed. After I close the remote panel , i want a windows VI to be opened up.
I have a Windows VI which programmatically opens connection to the RT server for opening the remote panel. The VI runs. When the user clicks Exit on this RT VI, the VI running is stopped and then another windows VI opens up. This works fine for first time. Since the RT VI is terminated, second time , if I run, it says, VI not in server memory.
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Attachments:
Dummytest.vi ‏39 KB

Minimise front panel of vi containing timed loop = problem

Is this expected behaviour...
Run the attached VI.
All it is supposed to do is beep every 10 cycles.
When you minimise it and try to restore the front panel though... it locks up for a random amount of time.
I don't think it is supposed to do that. (I'm running it on XP Pro.)
Originally I was chasing this problem in a data acquisition loop. The buffer would overflow and exit the app with an error when it was minimised.
It took all day to track it down to this.
Hmmm... I just tried to save it back to a version 8.0 vi and it doesn't seem to have the same error!
Message Edited by Troy K on 10-03-2008 05:26 PM
Message Edited by Troy K on 10-03-2008 05:31 PM
Troy
CLDEach snowflake in an avalanche pleads not guilty. - Stanislaw J. Lec
I haven't failed, I've found 10,000 ways that don't work - Thomas Edison
Beware of the man who won't be bothered with details. - William Feather
The greatest of faults is to be conscious of none. - Thomas Carlyle
Attachments:
Timed Loop minimised.vi ‏85 KB
minimisetimedloop.png ‏7 KB

I'm using LabVIEW 8.5.1 on two PCs and it does it on both of them.
I just emailed the vi to a colleague and after a few minimise/maximises it locked up on him too.
I've just found that if I remove the left and right data nodes inside the timed loop the bug seems to go away.
Steps to repeat bug:
1. Minimise all windows (Windows+m)
2. Restore vi front panel and run it. (It should start beeping twice a second)
3. Minimise / Restore it rapidly by repeatedly clicking on the vi's Front Panel 'task bar button' (down the bottom).
After a while the beeping will stop when the front panel is minimised and it wont restore. Then after a while (with or without clicking on the task bar button) the front panel will restore and the missed periods will execute very quickly (as the timed loop does what it is configured to do).
I think because of the simplicity of the example vi the bug doesn't show up as often. When I ran it in the real application (too many vi's to post) it crashed every time. In the real application there isn't much going on in the timed loop, it is just used to queue items into a separate consumer loop. The problem is that when the bug occurs, ALL LABVIEW CODE stops executing, not just the code inside the timed loop. So another vi running in parallel (in a daemon) that retrieves messages from a device queue stops and the device buffer overflows.
Attached is a modified vi to demonstrate that code outside the timed loop stops executing too. The bug occurs here on three different PCs, the only common thing I can think of is LabVIEW 8.5.1.
Troy
CLDEach snowflake in an avalanche pleads not guilty. - Stanislaw J. Lec
I haven't failed, I've found 10,000 ways that don't work - Thomas Edison
Beware of the man who won't be bothered with details. - William Feather
The greatest of faults is to be conscious of none. - Thomas Carlyle
Attachments:
Timed Loop minimised 2.vi ‏89 KB

Create OPC I/O server and front panel data socket problem

Hi all!
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Solved!
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LEDs on front panel

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Sometimes, hardware manufacturers provide diagnostic information by way of the lights (e.g., washing machines).   In other words, turning on LEDs can provide state information. Is this true with HP hardware?
Some more clues which tell you what is not the problem. I happened to have a new power supply handy, so I traded it out with the same results.   In normal operation, the green LED indicates disk activity, so I just removed the disk entirely to see if the green light would go out.   Nope, still on steady.   The blue LED typically implies the WiFi operation but I rather doubt at this pre-boot state the WiFi would be working.
I traced the power button line (two grey wires) to a half-sized board in the rear. No breaks in the wire or bad connections.
Any ideas?

HP Pavilion Elite m9357c Desktop PC
Motherboard Specification, MCP61PM-HM (Nettle3)
http://h20564.www2.hp.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c01357175
Don't understand this reference to a half-height board.
The Front Panel Header (9-pin, 2x5) on the motherboard is where those front panel LEDs and buttons are terminated.
EXAMINE Pictorial in the Internet link to motherboard (above).
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That wire would connect to the network card or motherboard via a different connector.
Some Media PCs of this era (2008) had Infared connections (option) for remote control of TV tuner option card.
LEDs do not last forever (have a long, but finite life) and can fail due to DC over-voltage or surge conditions (environmental, component failure).
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Where is front panel datasocket connection

After successfully using front panel data socket connections in the past I have now discovered that the menu item is gone. Anybody have any idea as to why?
LabVIEW 8.0.1
WinXP/SP2
Why can't I paste a screen shot?
LabVIEW 8.0.1; WinDoze XP
aut viam inveniam aut faciam

The only data socket control that I see is the Datasocket Refnum (reference control), which is located in the refnum palette.
I think all other functions are found in the block diagram palette.
RayR
Message Edited by JoeLabView on 12-17-2007 08:04 AM
Attachments:
datasocket.PNG ‏6 KB

Front Panel USB Power

MSI P4M900M2-L, 945GCM5, G31M-F.
Does anyone know how to solve the problem when using Internal card reader + Bluetooth device on this motheroard, the Bluetooth can function normaly but card reader can't, when only disable bluetooth then the card reader can funtion. Both devices are plug in the motherboard JUSB 1 Slot (Front Panel). When plug in a USB Flash Drive and a External Harddisk to the front panel usb at the same time, the USB Flash can work but the Extrnal Harddisk can't.
Any solution for this? Is it the JUSB slot cant produce enough power?
Thank you

The Bluetooth and Card Reader are 2 in 1 device that using a slot in Motherboard (JUSB), after login to windows, the bluetooth can function but when insert flash card the system cannot detect the card but when disable the bluetooth then the system can detect the flash card.
The Front Panel USB problem is when USB Flash Drive and External Harddisk using Front Panel USB slot, only the USB Flash can detect. (With or without card reader also same problem)
These problem seems like lack of power supply from motherboard and only allow 1 device run at the same time, although trying to change Ram, power Supply, Processor but the problem is the same. Customer claim that the card reader can run smoothly in Gigabyte and Intel motherboard, and dont know why these 3 model MSI 7255, 7267, 7345 facing the same problem.
What is the best solution to produce more or stable power or to allow these device run properly?

Use front panel as a button

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