Attention
There are different interpretations of the OPC AE standard by third-party OPC
AE server vendors. Integration issues have been seen with OPC condition events
in areas such as alarm acknowledgement and duplicate alarm identification. If you
want to integrate a third-party OPC AE server that utilizes OPC condition events
with Experion, you should contact Honeywell. The risks with OPC simple and
tracking events are lower than for OPC condition events. However, due to
different interpretations of the OPC AE standard, integration issues may still be
found. Thorough testing between the Experion OPC client and third-party server
should be performed to ensure correct operation.
Experion OPC Display Data Client
The Experion Display Data Client is designed to be used when you want to add OPC items
to custom displays, but have no requirement for advanced features such as alarms, history or
reporting.
If your system has redundant third-party OPC servers, Experion Redirection Manager (RDM)
should also be installed and used. RDM is the only way to provide redundancy with the
Experion OPC Display Data Client.
For information about installing and configuring Redirection Manager and the System
Management runtime component, see the following topic: ExperionR120 > Installation and
Upgrades > Supplementary Installation Tasks Guide > Installing Redirection Manager.
Attention
It is preferable for the third-party OPC servers to run in a dual active mode rather
than an active-passive mode.
You can directly add OPC items to custom displays, without having to first define them as
points in Quick Builder.
Experion OPC Server
The Experion OPC Server gives an OPC client read/write access to Experion point
parameters. It is compliant with the OPC Data Access specification, and can accept
connections from OPC clients.
The Experion OPC Server supports all mandatory OPC interfaces, including an automation
interface for application development in Visual Basic, as well as the
OPCBrowseServerAddressSpace interface. For more information on the automation
interface, see the OLE for Process Control Standard.
Exchanging data with other applications
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