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1.11
Using OPC to Connect Third-Party Applications to
SIMATIC Computing
OLE for Process Control (OPC) provides a standard mechanism for
communicating with numerous data sources. It is immaterial in this case whether
these sources are machines in your factory or a database in your control room.
OPC is based on the OLE/COM technology from Microsoft. For more information
about OPC, refer to the OPC specification OLE for Process Control Data Access
Standard, version 2.0 from the OPC Foundation.
As shown in Figure 1-11, you can use the OPC server provided with the SIMATIC
Computing software to communicate with the control engine and provide access to
the process data. SIMATIC Computing provides an OPC server that allows any
OPC client application to access data in the control engine. SIMATIC Computing
does not provide any OPC client application.
The OPC server is called: OPCServer.WinAC
SIMATIC Computing allows you to use OPC for connecting either to a single
control engine or to several control engines. You can also connect to the control
engine across a network, such as a local area network (LAN).
Third-party application
(OPC client)
WinAC OPC server:
OPCServer.WinAC
*
: cannot be operated simultaneously
Figure 1-11
Windows Automation Center WinAC Slot 412/WinAC Slot 416 Version 3.1
A5E00065531-03
OPC
WinLC
I/O
Using OPC to Connect Third-Party Applications to SIMATIC Computing
SIMATIC Computing
I *
*
CPU 416-2 PC
I/O
Product Overview
MPI server
MPI card
MPI = n
1-15
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