Multiple connections WebDav - error 1055: cancel the event recording

Hello

I use WebDav to extract the files from the controller to the computer.

It does not work when I use only one connection.

When I use the same WebDav vi several times to extract the files in different folders, I get error 1055: unregister events.

The first vi continues to operate, but the other stops.

The vi is attached in the following snippet:

In order to run it, the joint screws are also necessary ('FileInfo name and Path.vi' and "State.ctl of WebDAV sync").

The second vi I want to run at the same time is exactly the same, but with different name of queue and different data records:

If I delete the function "Cancel registration for events" on the side right, then I get no error, but the second vi stops without explicitly stop the while loop.

What could be wrong?

Thank you.

The problem seems to be related to the use of an event inside a timed loop structure.

Call loops are designed to be run in certain time intervals, while program alsways waits on the structure of the event inside the loop until an event occurs. These two behaviors are strictly opposed to each other, which could cause problems in this particular case.

Replace call loops with while loops, seems to solve the problem

Andreas Jost

Technical sales engineer

National Instruments

Tags: NI Software

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