
OPC90 Server
1 Introduction
The RoviSys Company has developed a tightly integrated interface between
OPC clients and a Bailey DCS that promotes future plant upgrades using OPC.
This interface is called the OPC90 Server. It allows easy and extremely user
intuitive replacement of Bailey operator consoles with Windows
NT/2000/XP/2003_Server based OPC Client consoles. It also provides an open
migration path from the Bailey control platform to OPC as plant time, resources
and schedule permits.
The OPC90 Server enables seamless DCS access to the Bailey Controls
Command Series, NETWORK 90 and INFI 90 Distributed Control Systems. The
server can communicate at the network level via the appropriate Computer
Interface Unit (NCIU0X), Plant Loop to Computer Interface (INPCI0X), Infi-net to
Computer Interface (INICI01, INICI03, INICI12, INICI13, IIMCP01/02) or, within a
single Process Control Unit, via a Computer Interface Command (CIC01), Serial
Port Module (NSPM01, IMSPM01) and Computer Port Module (CPM02/03). The
bottom line is OPC90 can communicate with all interfaces available for
NETWORK 90 / INFI 90 and Command Series Distributed Control Systems.
System integrity, functionality, and data throughput is maintained by utilizing
standard exception reporting techniques. Bandwidth improvements are realized
over existing Bailey use of these same hardware interfaces by implementing dual
channel capability and redundant interfaces.
This document is intended for individuals who are familiar with the Bailey
configuration principals in terms of the types and how to access exception report
blocks. An understanding OPC is also required.
OPC90 Server is an OPC Data Access 1.0, 2.0 and 2.05 compliant server. This
is achieved by using an industrial grade OPC toolkit to implement its OPC
interfaces. The ongoing maintenance and certification of this toolkit is managed
by a company that is a charter member of the OPC Foundation.
OPC90 Server supports DCOM. DCOM allows one PC running OPC90 to
provide its data via a local area network to other PCs running OPC client
software. Refer to the OPC90 Remote Access section of this document for
instructions on how to setup DCOM.
Throughout this document the OPC90 Server will be referenced as OPC90. The
Bailey system is referenced as
BLY
which is defined to include Command Series,
NETWORK 90 and INFI 90 systems.
The RoviSys Company
Version 7.0
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