Technical data

142 Theoretical and general applications www.westermo.com
… OPC eXtensible Markup Language (commonly known as OPC XML) HTML based
language for information exchange between applications.
In order to illustrate the problems, assume that three
applications need to exchange information between
two PLCs and an operator panel (HMI).
Each supplier has his own specific application with its
drivers. The drivers need to download data from
respective PLCs and HMI, here this results in nine inte-
gration points.
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