emile

Reading OPC data from device

1

from [connection.go ](https://github.com/konimarti/opc/blob/ff6d352d2e3df5f2c2358d46ac72a99cffa55df2/connection.go) ``` //OPCDataSource defines constants for Sources when reading data from OPC: //Default implementation is OPCCache. //From the cache OPCCache int32 = 1 //From the device OPCDevice int32...