Time Delay Express VI default to show as icon?
I am really only intrested in the Time Delay "express vi"
This is the only express vi I ever use and it drives me nuts everytime I drop it in and this HUGE box takes up space for nothing.
I would really love to have just the one VI able to default to Show as icon.
Attachments:
Time.png 32 KB
Part of me says that Express VIs should be as annoying as possible so they go away. But, in the spirit of trying to be helpful I will offer one suggestion. I have created a subVI which only contains the time delay Express VI. You can add this to the Palette (ie. user.lib) and go to Tools->Advanced->Edit Palette Set find the SubVI, right-click and select Place VI contents. Now when you choose this version it will drop in as an icon.
Attachments:
TimeDelay.vi 19 KB
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I need to use two non-consecutive time delays in a thread. My thread typically proceeds as follows:
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Attachments:
TFTmeasure.vi 115 KBLooking into the sources show: Cleanup is a nice tool (even thought it is far from perfect )
Well, nevertheless, from the wireworking, it seems alright that the second Time Delay express VI should indeed wait for the loop to finish. Therefore, i am wondering why it is skipped. And the only reasonable explanation: You have an error on the error cluster.
So please debug into it using highlight/probes on the error cluster to make sure that you are not running into issues here.
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Hello. I'm having problems using the elapsed time delay to show the seconds remaining on a wait step in a simple state machine. I would like to have a front panel count down showing the time left for the step. I thought the elapsed time delay was the way to do this. The problem is the vi runs correctly the first time through. But then after that the timing does not seem to reset back to the times I had set. If I remove the elapsed time delay and just stick a wait time in the state, the vi runs as I would expect. This just doesn't give the user an idea of the time remaining. What am I missing when using the elapsed time delay, or is this just the wrong tool for the job?
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Attachments:
Elapsed Time Delay.vi 39 KBThe problem is that the Auto Reset on the express VI resets the start time of the timer as soon as the time has completed. So you are essentially restarting the #1 timer immediately and then go on to #2. Once #2 is completed, #1 has already passed 10 seconds as well.
What you need to do is use the reset input for the express VI, but only have that be true the first time it is called. By using a shift register and the implies function on those loops, you can do that.
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Message Edited by Ravens Fan on 06-12-2009 10:56 AM
Attachments:
Example_VI_BD.png 2 KB -
Hi Team,
Showing Yellow icons after every 15 to 20 Min and internet stop working.when we enable- disbale the network connection then will internet start working fine.Some time network connection is disable but when we renable that connection it will stuck on enabling
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Regards
Sahil bhatejaHi，
So switch a LAN card fix this issue...seems a compatibility issue or maybe some packs or programs you installed recently cause this issue.
Have you manually check the network adapter driver from the PC's manufacture website? sometimes, it will be a time delay before Microsoft push out the driver update.
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TechNet Community Support -
Hi,
I have attached my simulation loop.In the model attached i hav eone main pump with constant rpm which drives the 5 smaller pumps and fills the tank at the same time.As soon as the tanks reach their 90% level,the valves of the five pumps close(SP1,SP2,SP3,Sp4,Sp5).After that the recirculating pumps opens for 5 secs of the first tank.As soon as the recirculation finishes,the drain valve(SV1) for tank 1 open and the volume goes to interim storage.This happens for all the remaining tanks.
My simulation works the first time,but when the second time the loop starts,it skips the recirculation pump even though i gave a time delay for 5 secs.Plz help ..I have attached the simulation.
Thanks,
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Attachments:
Spatial Logic_2_Final.vi 223 KBRami,
I suspect that you have a race condition. The widespread use of local variables frequently leads to race conditions. Your subVI (Spatial Logic Sub_2.vi was not included) so I cannot run the VI. You have no way of knowing whether the subVI or the inner case structure will execute first, because there is no data dependency between them.
I think a shift register or a few and some dataflow thinking would allow you to eliminate the inner case structure, the local variables, and, probably, most of your problems.
Some of the SPi are indicators and some are controls. How are they used?
The last case of the inner loop retursn to Case 1. Would case 0 be better?
As for the second time through issue, it may be related to the Elapsed time function Auto Reset. From the help file: "Resets the start time to the value in Present (s) when the Express VI reaches the Time Target (s)." If more than 5 seconds elapses between the first time you use this and the next, it will exit immediately on the subsequent calls.
Lynn -
Hallo,
I'm working on an academic control project, where I need to read (ni9215) 3 or 4 channels very fast,
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step and checked, when the step was readed in the written measurement log. I doesn't see andy difference
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Thanks for answering!Hi IoInNBlack,
first of all thank you for posting in this forum.
I think you should synchronize your input/output operation, otherwise I don´t understand how you can take the timestamps and consider them
reliable for your evaluation. I suggest you to modify the LV example here attached with timestamps and file I/O to build up your test and see what results you get then. Consider also that 20 ms are necessary for the acquisition of the samples and then you have add the time necessary to manage the file I/O.
Best regards.
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Message Edited by pxchellone on 07-06-2009 09:23 AM
Attachments:
Multi-Function-Synch AI-AO.vi 35 KB -
I've tried every online tutorial for timer.delay + experimented... how to make it work in this sitch
Hey,
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http://i47.tinypic.com/e9w64k.png
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This should be the simplest thing to do, but I'm getting stuck for some reason: I have a time delay running for a user-specified number of seconds, and I want an indicator on the front panel showing how much of this time has elapsed. I thought the "Elapsed Time" VI would be exactly what I was looking for, but I can't seem to get it to do what I want. I've attached my attempt; if you can point out where I'm going wrong, it would be much appreciated.
Solved!
Go to Solution.
Attachments:
Time Test.vi 34 KBYou don't have a while loop, so your code only runs once.
Your time delay is running in parallel with the elaspsed time. So it will delay the execution of the code.
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Time Delay to wait for a solenoid to open
I have a Shutter that opens fine but I need to wait with some Time Delay before I continue to process some information.
I am using Labview 7.0 and have a DaqPad-6016.It would be helpful to see your code to see exactly what you are doing.
However, LabVIEW does have several options for waiting. I have attached a screenshot showing some of these. The time delay is especially useful with DAQ because you can wire your task's error wire through the wait. This will cause the delay to explicitly happen in between the execution of VIs.
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Attachments:
wait.JPG 42 KB -
Time Delay Connector and Chart Question
Hello,
I have two problems with the VC 7.1
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Estimate time delay during execution
Hi, everyone.
Currently, I have a VISA program for reading signals from a GPS receiver. From the program, I want to measure time delay of execution, i.e. time delay between start and end as shown in the jpg. Are there any vi in LabView facilitating this purpose? Thanks a lot.
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yukfai88
Solved!
Go to Solution.
Attachments:
VISA.vi 12 KB
Estimate delay.jpg 54 KBSee attached VI and below screenshot which shows how to use it in your code. Just one solution...
Attachments:
Elapsed time LV80.vi 27 KB -
I'm trying to retrieve a file that is in the following format xxxxxxx_xxxxxx.YYYYMMDDHHMISS. I can't retrieve the file with the following sql command in the parameter "Expression for default for data" as
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And what about the other side that is creating the file: can they send you an event or trigger file containing the actual file name that needs to be processed ?
Regards,
Anton Goselink.
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