Rockwell-automation 9301 Series RSView32 Users Guide Manuale Utente Pagina 63

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3–1
Chapter
3 Setting up OPC and
DDE communications
OPC
®
and DDE connections allow you to communicate with a wide
range of local and remote devices.
OPC is OLE for Process Control, used to connect RSView32
to
communication devices via vendor-specific OPC servers. DDE is
Dynamic Data Exchange, used with external DDE servers such as
third–party servers, to connect RSView32 to communication devices.
RSView32 supports the OPC 1.0a and OPC 2.0 specifications.
If you will be connecting to communication devices using direct
drivers, see Chapter 2, Setting up direct driver communications.
OPC servers provide a way to connect an RSView32 station (the OPC
client) to:
communication devices, using RSLinx
®
as an OPC server
For details, see the topics in this chapter.
third-party communication devices, using vendor-specific or third-
party OPC servers (such as KEPServerEnterprise
, Siemens, or
Modicon
®
)
For details, see the topics in this chapter.
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