Rockwell-automation T8030S Trusted OPC Server Package Manual de usuario descargar pdf (Pagina 11)

Trusted

OPC T8030S

Issue 23 April 10 PD-T8030S 11

1. Description

1.1. Overview

OPC (OLE for Process Control ) is an industry standard for transferring process and event data

between a server and one or more client applications.

The OPC Server provides an OPC link between a Trusted

System and one or more OPC clients.

Using Ethernet Interface cards within the server’s host PC, it connects to one or more Trusted

Controllers. OPC client applications can connect to the server using Microsoft COM ( or DCOM over a

network ). Each client can browse the server to view the available tag references. Using these

references, the clients can then arrange for groups of tags to be synchronously updated at defined

intervals. Values may also be written asynchronously to the server.

Figure 1 shows how the OPC Server fits between the Trusted

System hardware and one or more

OPC client applications.

Figure 1 Communication Path for Trusted

OPC

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Rockwell-automation T8030S Trusted OPC Server Package Manual de usuario Pagina 11