While why broken arrow will not appear for a timed loop
Hi all
I need a little clarification relative to normal while loop and timed looping in labview.
In labview, if I keep a while loop on a block diagram, broken arrow will appear in the upper left corner of the window indicating the error. It displays error because I have not wired conditional terminal of the while loop.
But same is not the case for a timed loop. Can someone tell me what is the reason behind this...
If I release the conditional terminal of the timed while loop, it runs in infinfite time like a normal while loop. Then y labview behaves differently for these two types of loops in the scenario above.
FYI... I'm using labview 2009.
Waiting for response.
Thank you
Herald
Ruben,
the reason is quite simple: call loops are mostly real-time and FPGA targets. Since most of the applications on these targets work continuously (at least this is more often the task), it is possible to create a loop that does not end. So the timed loop by default assumes that there is no need of a stop button.
The 'normal' while loop needs code for termination (conditional terminal) because normal applications on Windows/Linux/Mac are used to be fair...
hope this helps,
Norbert
Tags: NI Software
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