Failure to connect to SystemLink server from cRIO

[StevenHowell]

JoshuaP,

I just figured it out that if you want to use the Message component of the SystemLink API in LabVIEW, the SystemLink Server has to be installed.

If you are using tags and file transfer, then you can use the NI Web Server alone. 

Bummer....

Thanks again for all of your help.

[RagMan]

I too get the error -251043 (A supported version of the 'nimessage' web service is not installed on the configured web server) after a few days of running my application. I have 4 LabVIEW applications running on a PC feeding data to a  Server. I use Tags to send data to the central server from the LabVIEW Applications.  I use SystemLink Messages to allow the LabVIEW Applications to send/receive messages from a Web UI (developed using GWeb software). Both WebServer and SystemLink are installed on both the PC and the Server. 

The error -251043 happens after running fine for a few days, and it happens on all 4 LabVIEW apps at the same time. Sometimes they run fine for weeks, but usually this error happens within 5-10 days. 

The only way to clear this error I have found is to reboot the PC. The Server does not seem to be complicit in this error, so I don't need to reboot it.

[JoshuaP]

I would recommend creating a new forum post, specifically for this issue.