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Title: Understanding OPC-Open Connectivity Via Open Standards: The Opc Foundation
Author: Russel W. Treat Tony Paine
Source: 2013 Appalachian Gas Measurement Short Course
Year Published: 2013
Abstract: In the mid-1990s, a group of vendors convened to address the growing concern regarding connectivity to the plant floor-referred to as the Device Driver Problem. At that time, HMI and SCADA vendors were responsible for building their own driver libraries. This approach created great solutions when it all the connectivity requirements were provided by a single vendor. However, often when multiple vendors were involved, solutions were incomplete or unreliable across vendors. The vendors were faced with a decision: they either needed to invest resources to develop application-level functionality or extend connectivity.