Labview Exception error with field point

[Pazzer1]

I am running Labview 6.1 with Fieldpoint modules, when my program has been running for a while I get an error message come up, "Labview: An exception occurred within the external code called by a call library node. This might have corrupted LabViews memory. Save any work to a new location and restart LabView. VI "Arabsat.vi" was stopped at node 0x810 of subVI"FP Create Tag.VI""
If I run the same program on another machine I dont get any errors comming up.

I am running XP Labview 6.1, RS485 PCI card and fieldpoint explorer 3.0.

Any ideas as I cant seem to fix it.

I also get the error with LabView 7 express..

Thanks

Allan

[Aaron_G]

Allan,

The error message that you are seeing indicates that an error occurred in DLL that was called by the FP Create Tag.vi. Since this is occuring on a single machine only, you may wish to try re-installing the NI-FieldPoint software on that one machine. First, do an uninstall, reboot the computer and then do an install of the software. Also, are both machines running the same OS and the same patches to the OS?

Something else that occurs to me is that you said this problem only occurs after the code has been running for awhile, and the error message occurs at the FP Create Tag.vi. Generally you should only need to use the FP Create Tag.vi at the beginning (initialization) part of your code. Once you have created a specific FieldPoint tag/refnum, there should be no need to recreate it later unless you have stopped the FieldPoint server by using the FP Close.vi.

Something else you can do is upgrade to a newer version of the NI-FieldPoint Software, which is currently at version 4.1. Off the top of my head, I am not sure what was the last version to support LabVIEW 6.1. I am pretty sure that 4.0 supported it, but I am not sure about 4.1. You will need to check the notes on the download pages. Note: Prior to version 4, the software was called FieldPoint Explorer and it is now called NI-Fieldpoint software.

Regards,
Aaron

[Pazzer1]

Thanks for the sugestions, I reloaded explorer 3.0 as recomended but this had no effect.
I have now installed fieldpoint explorer 4.0.1 which I had tried before, but had found that it produced a delay in the output of actions, i.e. if I selected a button to switch on a relay output, there was a delay of 15-20 seconds before the action was completed, because of this I went back to version 3 which was switching instantly.

I will try version 4 to see if it cures the error but have you any idea why there might be a delay in producing an output.

Allan