10-11-2012 10:26 AM
I have a LavVIEW 2009 SP1 application that uses the DSC module to communicate with a Mitsubish OPC Server (v6.01). The connection takes a while but eventually everything runs fine. I am monitoring ~100 labels (tags) in the PLC. I keep getting the NI Error -1950679030 (unspecified error) during statup. I let the SW keep trying to read the tags and eventually the error goes away and every thing is fine but it takes about 5 minutes.
10-16-2012 07:16 PM
Thanks for the post, I have a few questions in order to have a better idea of what you are trying to do:
Here are a few links that may help you with your application.
10-17-2012 04:38 AM
The problem has been thre since the beginning. On startup I get connection errors for a couple of minutes and then every thing clears up. I have OPC clients provided by Mitsubishi and they never indicate any problems. No fire wall is on. Yes I am using IO Servers and bound variables. I do not have access to the software any more as my client unexpectedly terminated my contract on Thursday.
10-22-2012 05:20 PM
Would it be possible for you to get diagnostic log files from your client for the IO Server and post it. From the Configure OPC I/O Server window in LabVIEW you can enable diagnostics and generate a log file under the Diagnostics Tab. This log can help identify any potential communication issues with your OPC IO Server.
10-23-2012 06:02 AM
I'll try but it may take a while.