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What are the best poll periods to use?

April 26, 2017best periods poll

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What are the best poll periods to use?

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This depends on how quickly you want an OPC Server failure detected and acted upon. Polling the Active OPC Server every second and setting the polling of the standby OPC Server to ‘Never’ has been found to work very well and not induce an noticeable load on the OPC Client or OPC Server nodes. I’ve tried to browse to add OPCServers to my failover group, but the browsing is not working. What do I do? This is very likely caused by the firwall settings at the remote node. To perform a browse of a remote node File and Printer Sharing must be opened (TCP 137, 138, 139, 445). Once the browse has been completed the ports can be blocked again as they are not used during the normal operation of OPCFailover. From OPCFailover V1.6 it will be possible to manually specify the remote node name and OPCServer CLSID instead of browsing. Once more, can you explain this CLSID and ProgID thing? Yes. When a client application wishes to make a connection to a server, it uses the servers CLSID to identify it.