I’m a beginner and would like to ask for help from the experts.
I connected to an OPC Client from Edge using the OPC DA method. The OPC Client passes tag information obtained from the OPC Server to Edge.
However, I can only get the tag names in edge but not their values. Could any expert please help me understand why this is happening?
Some OPC DA servers are buggy, and don't do "subscribe" properly. Try the [r] to see if you can do a poll read. If so, set an Ignition tag group to use OPC Reads instead of subscriptions and put the tags in this group.
I found a clue: in the OPC Client’s Distributed COM Users Properties, the Members list is empty.
What I mean is — do both computers need to have members added under Distributed COM Users Properties?
Could this be the cause of the problem?
