However, because of the massive amount of legacy hardware still in operation, knowing how to work with OpcNetApi.dll remains a highly valuable skill for industrial software engineers.
You must add a reference to OpcNetApi.dll and its companion, OpcNetApi.Com.dll . opcnetapidll
(specifically Data Access, Alarms & Events, and Historical Data Access). However, because of the massive amount of legacy
OPC network API DLLs are central to industrial automation tasks such as: OpcNetApi.Com.dll . (specifically Data Access