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remote control time constraint

Hi. How can i limit the time for certain user to control my vi panel remotely. For example, i would like to limit every user to control the panel for only 15 minutes each. I have followed the instructions in the help in labview, that is by selecting the vi file i want and set the time constraint. However, it doesn't work. Could you please give me some advise on solving this issue? Thank you in advance.


regards,
chea tian
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Chea tian,

Have you checked tools--> options --> Web Server: Visible Vis....and made sure that the "control time limit" is properly set? Is this what you meant by selecting the VI and setting the time constraint?

If you have done that and still have the problem I would like to know some more information about your setup...like the OS, version of LV, browser being used...and what you are experiencing when you try to control the VI for more than the alloted time.

with this information I will better understand what is going on.

-Brett
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@cheatian wrote:
Hi. How can i limit the time for certain user to control my vi panel remotely. For example, i would like to limit every user to control the panel for only 15 minutes each. I have followed the instructions in the help in labview, that is by selecting the vi file i want and set the time constraint. However, it doesn't work. Could you please give me some advise on solving this issue? Thank you in advance.


regards,
chea tian


Hi Brett,

First of all, thank you for responding to my enquiry. Yes, I have selected Tools>>Options>>Web Server: Visible Vis and then select my vi file and set the time limit to 500 seconds as well. However, when i control the panel remotely, i am not limited to 500 seconds only. I can control the panel as long as i want to. And, when i check the control time remaining while i am remotely controlling the panel, nothing happens. I am using WindowXP, LV6.1 and the latest IE. Once again, thank you.

Take care.

Regards,
Chea Tian
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Chea tian,

Since you have checked all the options...I am wondering if you actually have multiple users attempting to control the VI. The timeout does not really take effect until a 2nd user requests control. At this time, the current user is given "timeout" time to finish what they are doing before control is transferred to user number two. This prevents a single user from hogging all the time if they walk away from the machine yet maintain control if no other users are present.

Please see the following link for more information:
http://digital.ni.com/public.nsf/websearch/6FB729808D59C75886256BC90052D846?OpenDocument

Also...just for more info: All LV versions come with at least 1 remote panel license. Professional Development System comes with 5. More can be purchased from NI as needed.

🐵
-Brett
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Dear Brett,

Thanks a lot. Now i know why it doesn't wotk. Thank you so much. By the way, is it possible to set a limit for every user to remotely control the panel (not after another user request for the control)? You have helped me a lot. Thank you. 😃

Take care.


Regards,
Chea Tian
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Hi Chea Tian,

You cannot set an automatic timeout without other clients applying for control. Programmatic methods for providing or requesting client control are also not yet available in LabVIEW. For other programmatic control features of the Remote Panel connection, please refer to this KnowledgeBase:

Remote Front Panel Programmatic Connection API
- Philip Courtois, Thinkbot Solutions

Thinkbot Solutions
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