Honeywell Experion LX Client Guide

Attention
It is preferable for the third-party OPC servers to run in a dual active mode rather
than an active-passive mode.
Experion OPC Integrator
The Experion OPC Integrator (OPCI) is used to transfer data between different parts of the
system using data that is accessible through OPC. OPC Integrator can be used in many
different architectures that include process controllers, SCADA controllers, distributed control
systems, local and remote Experion servers. This section describes OPC Integrator, and three
typical system topologies using OPC Integrator.
Attention:
OPC Integrator is not designed to transfer safety or process critical data. To
transfer critical data, you should use a direct peer to peer method of
communication between controllers rather than through a server-based process.
OPCI groups and connectivity
The key functionality with OPCI is that OPC clients have the ability to update server data by
making a write request. OPCI allows you to integrate separate OPC servers together in a
limited manner which otherwise wouldn't normally be possible, requiring a server/client
interaction. OPCI interfaces between the OPC servers as a client to each server, thus
integrating the servers to each other.
Experion OPC Integrator integrates source and destination OPC server data points into
groups. OPC Integrator does not handle alarms and events.
When you configure an OPCI group, you nominate two OPC servers, a source server and a
destination server, and a list of OPC data item pairs to transfer data between them. For
example, if you nominate the Experion OPC server as the source server and a 3rd party OPC
server as the destination, then OPCI reads the Experion point data and writes it to the 3rd
party system.
Each OPCI group, when enabled, establishes a connection to both the source and destination
OPC servers that are configured for that group. It then adds, to each OPC server, the list of
items that have been configured for that group on that OPC server. The OPCI group then
subscribes to receive callbacks from the source OPC server only. This means, that when
values change on any of the source points configured, the Experion OPC server will send the
new values to OPCI. This is standard OPC server/client interaction. OPCI then writes these
values to the corresponding items configured on the destination OPC server.
Exchanging data with other applications
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Honeywell Experion LX Specifications

General

Brand	Honeywell
Model	Experion LX
Category	Control Systems
Language	English