ABB Bailey DCS Connections Network 90,® Net 90® and INFI 90®

This manual provides technical information required for the physical connection

of the Previse OPC Server/Driver to the BaileyÒ Net 90Ò or INFI 90Ò DCS.

This manual includes:

• Instructions for module set up for communications with Driver.

• Description of known communications limitations where applicable

This manual does not include:

• Instructions for installation or general configuration of modules.

Previse OPC Server & Driver for Bailey DCS

Previse offers a Driver, which also functions as an OPC Server, for connection

to Bailey DCS Systems. This product is sold in several different configurations,

and this manual applies to all of them. In this manual, this Previse OPC

Server/Driver is simply referred to as the Driver.

Bailey DCS Overview

The Net 90 DCS and the INFI 90 DCS are products of Elsag Bailey Process

Automation N.V., now ABB, and are marketed and installed worldwide.

Net 90 and INFI 90

The Net 90 DCS, introduced in the 1980, and the INFI 90 DCS, introduced in

the 1988, are widely used for process control in process oriented plants, in

industries such as pulp and paper, power generation, cement making, glass,

chemical and many others. In these industries the Bailey DCS system are

respected for the high level of process automation reliability that they bring.

Data Highways

All DCS systems on the marketplace rely on a “data highway” for high speed

data communications between all of the distributed components of the DCS

system. Over the life of the Net 90 and INFI 90 product lines, three primary

data highways have been used: Plant LoopÔ , Super LoopÔ and INFI NetÔ.

Connecting to Bailey DCS

The Driver may be connected to any Bailey DCS via a gateway device, variously

called a Computer Interface Unit (CIU), an INFI-NET to Computer Interface

(ICI) or a Plant Loop to Computer Interface (PCI). These interfaces, designed

for connection of external devices to the Bailey DCS, allow the OPC Data Server

to communicate with the Bailey DCS modules.

Supported Connections to Bailey DCS

The table below lists all of the Bailey DCS connections that are supported by the

Driver. Further details regarding each of the supported connections may be

found in the following sections within this appendix.

Support for communications to additional devices may be added. If you need

support for devices not mentioned here, please contact us.

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