Siemens SIMATIC Box PC 620 Spécifications télécharger pdf (Page 23)

Product Overview

1-15

Windows Automation Center WinAC Slot 412/WinAC Slot 416 Version 3.1

A5E00065531-03

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).

MPI =

CPU 416-2 PCI

WinAC OPC server:

OPCServer.WinAC

SIMATIC Computing

Third-party application

(OPC client)

MPI server

WinLC

I/OI/O

MPI card

OPC

: cannot be operated simultaneously

Figure 1-11 Using OPC to Connect Third-Party Applications to SIMATIC Computing

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Siemens SIMATIC Box PC 620 Spécifications Page 23