We are using OPC DA Server on WinCC OA ver 3.12. Added OPC DA Server service to our application console.
OPC DA server service is not be started yet ,The OPC Client tool can be connected to our OPC Server. After then OPC DA Server service cannot be started.
Shortly
OPC Server DA Service is not running but the OPC Client can be conected to wincc OA OPC Server, and OPC Server DA Service cannot be starrtted.
What is the solution. Why can OPC is Client Connected, OA OPC Server, While OPC Server DA service is not started
We are using Matricon OPC expolorer as OPC Client tool.
OPC DA Server Service Problem
- Gertjan van Schijndel
- Posts:634
- Joined: Mon Aug 02, 2010 10:37 am
Re: OPC DA Server Service Problem
The default configuration allows a WinCC OA OPC Server to be started automatically, because a DCOM client is connected to it. You can disable it by removing the launch permissions of the OPC Server as described in the online help under: 'Drivers' -> 'OPC Data Access' -> 'OPC server' -> 'Requirements for the OPC server' -> last note.
- hakan
- Posts:28
- Joined: Wed Nov 24, 2010 9:38 am
Re: OPC DA Server Service Problem
I set to Deny Remote Launch and Local Launch of WinCCOA OPC Server Security DCOM Settings. But result is same.
Before OPC Server DA is not stated, Matricon OPC Client can be connected and OPC Server cannot be stated and bling yellow and blue
Before OPC Server DA is not stated, Matricon OPC Client can be connected and OPC Server cannot be stated and bling yellow and blue
- hakan
- Posts:28
- Joined: Wed Nov 24, 2010 9:38 am
Re: OPC DA Server Service Problem
I will try my problem basically again step by step
1-the project is started, "Process Manager" and "Database Manager" started
2-On Time OPC client tools (MatrikonOPC client) can be connected to WinCCOA OPC Server DA
3-OPC server DA of WinccOA cannot be started, blue and yellow blinking?
Why is the OPC Client(Matricon OPC Client) can be connected before OPC Server DA service not started and why can be start The OPC Server DA service of WinCCOA while OPC client is connected?
1-the project is started, "Process Manager" and "Database Manager" started
2-On Time OPC client tools (MatrikonOPC client) can be connected to WinCCOA OPC Server DA
3-OPC server DA of WinccOA cannot be started, blue and yellow blinking?
Why is the OPC Client(Matricon OPC Client) can be connected before OPC Server DA service not started and why can be start The OPC Server DA service of WinCCOA while OPC client is connected?
- leoknipp
- Posts:2928
- Joined: Tue Aug 24, 2010 7:28 pm
Re: OPC DA Server Service Problem
Hello,
I've seen that you have created a service request with the same topic.
Can this thread be closed?
Just a technical information concerning OPC DA communication: When a OPC DA client is started it tries to start the OPC DA server if it is not running.
If you try to start the WinCC OA OPC DA server afterwards a second time this is not possible and therefore you will see after a short time the "blue and yellow blinking" color giving the state that the maximum number of restarts have been reached.
This is also documented with some log messages.
Best Regards
Leopold Knipp
Senior Support Specialist
I've seen that you have created a service request with the same topic.
Can this thread be closed?
Just a technical information concerning OPC DA communication: When a OPC DA client is started it tries to start the OPC DA server if it is not running.
If you try to start the WinCC OA OPC DA server afterwards a second time this is not possible and therefore you will see after a short time the "blue and yellow blinking" color giving the state that the maximum number of restarts have been reached.
This is also documented with some log messages.
Best Regards
Leopold Knipp
Senior Support Specialist