OPC UA Drive on VT SCADA Not connecting

m2brenesp

posted Jul 15 '20 at 12:10 am

Is OPC UA Driver supported in Light Version? I cannot get it to connect to a server: status not refreshed.

On the I/O address assist button seems grayed out and I cannot tell what is failing.

Tried from same client host UAExplorer and it connects fine.

I selected Anonymous and no certificates. Is this configuration not supported?

Is the a log file somewhere I can view?

Is OPC UA Driver supported in Light Version? I cannot get it to connect to a server: status not refreshed. On the I/O address assist button seems grayed out and I cannot tell what is failing. Tried from same client host UAExplorer and it connects fine. I selected Anonymous and no certificates. Is this configuration not supported? Is the a log file somewhere I can view?

jpobuk

posted Sep 24 '20 at 5:27 am

Any updated answer to this from anyone? I have a S7-1500 with a OPC UA server running and I setup the driver, but get the greyed out assist button when I try to add I/O. I don't see anything telling me what is wrong. I have no certificates and selected anonymous. The S7 side is bare bones security as well, allowing any connection to connect without certificate.

Michael

posted Sep 24 '20 at 11:29 pm

I think we recently got some changes made to how the anonymous connections work, so I would retry on the latest version.

jpobuk

posted Sep 25 '20 at 12:10 am

Thank you for the quick reply Michael.

I am using VTScada 12.0.14. I see this under the revision notes under 12.0.13:
"The VTSCada OPC UA Client Driver would fail to connect to OPC
servers when set to Username authentication, and the username was left blank."

I don't see any other references to fixed OPC issues through the current 12.0.19. I will still try to update to latest tomorrow onsite, but any other thoughts in the mean time? Or is there a log as m2brenesp asked initially to check?

Thank you for the quick reply Michael. I am using VTScada 12.0.14. I see this under the revision notes under 12.0.13: "The VTSCada OPC UA Client Driver would fail to connect to OPC servers when set to Username authentication, and the username was left blank." I don't see any other references to fixed OPC issues through the current 12.0.19. I will still try to update to latest tomorrow onsite, but any other thoughts in the mean time? Or is there a log as m2brenesp asked initially to check?

Michael

posted Sep 25 '20 at 6:45 pm

There is the show statistics button:

https://www.vtscada.com/help/Content/D_Widgets/Dev_OPCUAClientStats.htm?Highlight=opc%20ua

There is the show statistics button: https://www.vtscada.com/help/Content/D_Widgets/Dev_OPCUAClientStats.htm?Highlight=opc%20ua

DanW

posted Nov 16 '20 at 6:59 pm

There were some improvements made to the OPCUA driver in ver 12.00.21 but I still have issues as well. Officially, if your controller doesn't have a FQDN it must have its IP address in the SAN of the certificate. My controller generates a server certificate with its IP address in the SAN but VT still fails to maintain connection unless I keep the dialog window open with 'Minimum Security' checked off in the Diagnostics tab. I have no issues with other Clients though. Its kind of weird but I'm not knowledgeable enough to know what questions to ask. VTScada's Engineers are convinced that it works properly. Perhaps they're right but if others are having similar issues....

At the very least, make sure you're running VT12.00.21.

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