How to Reduce default OPC Tag list from 800xA OPCDA Surrogate server so that Client see's only Configured Signals
Dear Team,
Is there any way to limit/reduce the Default opc tag list variables from ABB 800xA OPC server (DA Surrogate) and show only configured opc tag list to OPC client .. so that OPC client can see only list of configured variables instead of whole junk of variable list ...
For testing currently i created a single tag in ABB 800xA system and tried to browse this tag through Zenon OPC client system while doing so Zenon OPC client took almost half a day to browse complete list of tags from ABB 800xA OPC server ( 282242 Tags instead of single configured tag).
So i wanted a OPC DA server (surrogate ) file path which has all the list of variables so that OPC client is able to see this information. I can reduce the default tag list in that file..
Asked 4 months ago
Answers
0
If you use a proper OPC Client (e.g. Softing) you can browse the 800xA structure like in Plant Explorer. Should be easy to find a single item:
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You can try to hide unwanted structures or objects by using "security definition" aspects.
You are already suggested to run AfwDsOpcSurrogate as dedicated 800xA user. If you deny nearly everything to this user, you should be able to show only wanted items to the OPC client.
I cannot try this on my plant now, so take this as just an idea, not as advice.
You are already suggested to run AfwDsOpcSurrogate as dedicated 800xA user. If you deny nearly everything to this user, you should be able to show only wanted items to the OPC client.
I cannot try this on my plant now, so take this as just an idea, not as advice.
Answered 4 months ago
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No. Filtering is a job for the client software, not the server.
The OPC-DA Surrogate Server is designed to expose the ENTIRE 800xA system, including many many tags not related to controller applications. Do not try to browse or upload the whole 800xA structure. A client should be able to open individual branches in the tree very quickly, allowing you to find the specific tag you are looking for.
Remember also, that the 800xA Surrogate server will "resolve" your Object:Aspect:Property reference to the correct unique object in an 800xA system without requiring the full object path. To subscribe data from a single variable you typically only need to know the "Object:Property" ie, the Tag and Attribute, that you want to display.
The OPC-DA Surrogate Server is designed to expose the ENTIRE 800xA system, including many many tags not related to controller applications. Do not try to browse or upload the whole 800xA structure. A client should be able to open individual branches in the tree very quickly, allowing you to find the specific tag you are looking for.
Remember also, that the 800xA Surrogate server will "resolve" your Object:Aspect:Property reference to the correct unique object in an 800xA system without requiring the full object path. To subscribe data from a single variable you typically only need to know the "Object:Property" ie, the Tag and Attribute, that you want to display.
Answered 4 months ago
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