April 10, 2018 at 10:29 pm #3457
Hi I am trying to connect to a Delta V OPC server and am running into some issues, so far this is what I have:
– 2 Machines on a local network, one running Windows Server 2008, one running Windows Server 2012.
– DCOM config setup on both machines.
– Applicable services run as the correct user account.
– Both machines on the same workgroup with the same admin usernames.
– Multiple OPC test clients work in both directions between the machines.
I am receiving an E_NETWORK_ERROR when trying to connect to the Delta V OPC Server but if I change the server to Matrikon Simulate server for example within Rapid SCADA config everything works. I have installed all the software along with different test clients on a laptop running Windows 7 as well and get the exact same issues. Maybe something with the Delta V OPC isn’t supported?
Thank you.April 11, 2018 at 12:14 am #3458
Try this utility to test https://yadi.sk/d/d1UOUw153DcoDp Does it work?
When does E_NETWORK_ERROR occur?
The OPC server also can be the cause of the problem. For example, we contacted with a developer on a one OPC server to append the proper implementation of all needed OPC methods. When he does it, connection was OK.April 11, 2018 at 2:25 pm #3467
Utility does not work, it gives the same error. The E_NETWORK_ERROR occurs while attempting to connect to the server, one thing to note with the Delta V OPC server is that you install a program called OPC remote on the client device which has a service that runs through a remote machine (OPC server) and that is how you access the data. I have multiple third party clients connected through this server already it just seems like this one does not connect.April 12, 2018 at 1:46 am #3470
Oh, did you install OPC Core Components? They are required.April 12, 2018 at 2:13 am #3472
Yes I have.April 12, 2018 at 11:02 am #3475
In this case, if it’s possible, we should contact with the OPC server developers and works with the to fix the issue. I can assist you in email conversation. We did the same thing to fix another OPC server for BACnet (I forgot its name).September 4, 2018 at 10:24 am #4198
I have a similar issue connecting to CyBro OPC 3.0.6 server.
I can’t connect with Rapid SCADA (E_NETWORK_ERROR). I also tried the test client you provided and it hangs during connection (after I select an OPC server from the list and click Connect). But I can connect with the Matrikon OPC Explorer 22.214.171.124 and works fine.
Running all on same machine.
Help!September 4, 2018 at 2:36 pm #4199
Is it possible to contact a manufacturer of this OPC server? We could test the connection together. It may help to find the cause.
Does this OPC server support OPC UA?September 5, 2018 at 10:00 am #4203
I will contact the OPC server manufacturer and ask about UA and the will to solve the problem together.September 5, 2018 at 4:05 pm #4204
You can add me (info@…) to an email copy if needed.September 7, 2018 at 5:55 am #4212
I switched to ModBus and it works. Having still some problems, but in 2 days I managed to make it work 🙂
It seems ModBus is a good solution for our purposes.September 7, 2018 at 3:11 pm #4213
Classic OPC is a black box, difficult to find a cause. Modbus is transparent.
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