topic Re: Error FPProtocol.cpp line 3244 using remote panel and subpanel in LabVIEW

Error FPProtocol.cpp line 3244 using remote panel and subpanel

james brunner — Tue, 12 Jul 2005 17:30:27 GMT

We are developing a remote panel application using LV7.1 for WinXP. One of our UI's uses a subpanel to embed other smaller, task-specific, UI's. This generally works quite well. However, one of these task-specific UI's will generally cause one of the following problems:

a) As soon as the subVI panel is exposed in the subpanel, "Error FPProtocol.cpp line 3244" occurrs.

b) The subVI panel is exposed in the subpanel, however the user loses control over the entire remote panel. One work-around to this situation that seems to work is:

1. refresh browser window hosting the remote panel;

2. right-click remote panel and select "Release control";

3. right-click remote panel and select "Request control";

c) Sometimes the subVI panel opens and works normally, however, upon closing, the entire remote panel will be locked-up as in (b) above. The same work-around strategy seems to work here as well.

Any ideas? Thanks in advance,

James

Message Edited by james brunner on 07-12-2005 12:36 PM

Re: Error FPProtocol.cpp line 3244 using remote panel and subpanel

Scott Y — Fri, 15 Jul 2005 19:02:44 GMT

Hello,

Would it be reasonable for you to post the VIs and other information necessary to reproduce this issue?

Thank you,

Scott Y

Re: Error FPProtocol.cpp line 3244 using remote panel and subpanel

james brunner — Mon, 18 Jul 2005 15:44:43 GMT

The application is a little cumbersome to work up a simpler example demonstrating the error, and we have since found a work-around that may shed some light on the cause. The embedded sub-panel is a GUI built around an event structure. During initialization of the GUI, a couple of "Value(Signalling)" property nodes were used to fire events used to initialize a couple of controls. Either casing out or removing the "Value(Signalling)" property nodes avoided the error and lock-up condition previously described.