Interface Interchange and Software Implementation of OPC Data Access
OPC数据存取的接口调用与软件实现*

Analyzes the interface interchange and the way of OPC data access. Considering the shortage of OPC data access in tradition, proposes a memory method and implement it, which is capable of using the linear linked list for a few amount of data and using the chained harshed list for a large number of data , and using the chained harshed list with headnode for client data. The test which was done is used to illustrate the availability of the proposed method.