Thursday, December 12, 2024
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Automation, Control & Plant Intelligence - Articles, Analysis, Reviews, Interviews & Views

OPC - OLE (Object Linking and Embedding) for Process Control :: The Industrial Interoperability Standard

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Automation Media is dedicated to develop the awareness and understanding about interoperability in automation by providing best information about open specifications that standardize the communication of acquired process data, alarm and event records, historical data, and batch data to multi-vendor enterprise systems and between production devices. Production devices include sensors, instruments, PLCs, RTUs, DCSs, HMIs, historians, trending subsystems, alarm subsystems, and more as used in the process industry, manufacturing, and in acquiring and transporting oil, gas, and minerals.

DCOM - What is it?



  • Like OLE, ActiveX is built on the COM programming model to support the full integration of software components. It supports Distributed COM (DCOM) for the transparent integration of those same components across distributed networks, including the Internet and intranets.

  • DCOM (distributed component object model) extends COM to networks (remote objects).

  • It is a highly Optimized protocol, where remote components Appear to be local.
  • Dcom was first released for Windows nt 4.0 in august 1996.
  • Microsoft java and Vb script support dcom and activex development.

  • Other companies are developing versions of DCOM and ActiveX for non-microsoft platforms.







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