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Exchanging data with other applications
For best performance, OPCI destination groups should be configured on the server where the
writes will occur. Be aware that configuring OPC Integrator with one or more items in a
destination group on a different server may place undesirable load on the communications
subsystems of target controllers.
For more information about the Experion OPC Integrator, see "Experion OPC Integrator" in
the Station Configuration Guide.
Transferring data between local controller points
In this topology, OPC Integrator and the Experion OPC server are installed on the same
Experion server to achieve communication between controllers. OPC Integrator can read
and/or write to each controller. The controllers can be:
Honeywell Process controllers (C200, C300)
n
Experion SCADA Fail Safe Controllers (FSC)
n
SCADA controllers connected using the Experion OPC Client Interface
n
Transferring data between local controller points using OPC Integrator
Previously the value transportation algorithm may have been used to achieve this type of
communication, however, now the OPC Integrator provides a more efficient method.
This architecture supports Experion server redundancy.
Transferring data between local and remote points
In this topology, OPC Integrator is installed on the local Experion server. Although the OPC
integrator groups are configured with localhost, the source or destination points could be part
of a controller that is connected to a different Experion server. In this situation, data transfer is
achieved using the DSA subsystem.
Honeywell 2017
118
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