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OPC DA sometimes unpredictable, unfortunately. While the Rapid SCADA driver uses official .NET OPC libraries, provided by OPC Foundation, they are not ideal.
Is the OPC server installed on the same machine as Rapid SCADA?
What OPC server do you use? (just for information)Please check this video. It should help to connect to OPC UA server. In the video Prosys OPC browser is used. However, any client is OK.
Hi,
You can see that the error isNpgsql.PostgresException (0x80004005): 57P03: the database system is shutting down
You should check the PostgreSQL database. When it is not available from SCADA, try to connect to it by pgAdmin.
It’s weird. Connection is OK. Looks like no device on the line.
Could you check the request sequence? Screenshots can be useful.If you think that the issue depends on the subnet, try other IPs for testing.
If the above works for you, there are 2 steps:
1. Read data from the DB with DrvDbImport.dll
2. Enable OPC UA server to provide data to other apps.Hello,
OPC UA server that is provided by DrvDsOpcUaServer.dll works on the level of the Communicator application. Therefore, it cannot access to channels that are managed by the Server application. It can access to data collected by other Communicator drivers. However, there is DrvDbImport.dll driver that reads data from a SQL database. Probably, you can read data from the DB by the DB Import driver, and then provide it using Rapid SCADA OPC UA server.Hello,
It is possible to connect to a remote OPC UA server.
Please write in more detail, what difficulties did you encounter?Hi,
This forum is in English. If you prefer Russian, please ask on https://forum.rapidscada.ru/.NET is required to use Rapid SCADA. OPC Core Components are required to connect to OPC server.
The reason is that the utility uses the same OPC Classic libraries as the driver uses, and it can help to find the problem cause.> Try this utility to check connection to the OPC server.
Does the utility work for you?What Windows version do you use?
