IDEC WindSRV - Manual (Page 108)

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DDE, enabling it will cause the server to automatically register its share names and start the Net DDE service manager.
DDE shares will be removed when the server shuts down. See Also:
How To.. Use Net DDE .
Service Name
This parameter allows users to change how the server appears as an application name to DDE clients. This name will
initially be set to allow compatibility with the previous versions of the server. If users need to replace an existing DDE
server however, the server's service name can be changed to match the DDE server being replaced. The service name
allows a string of 1 to 32 characters to be entered.
Formats
This parameter allows users to configure the format of DDE to provide to client applications. All three formats are
enabled by default. This is particularly useful when users experience problems connecting a DDE client application to
the server: each of the DDE formats can be disabled in order to isolate a specific format for testing purposes.
Note: Every DDE aware application must support CF_Text at a minimum.
Update active clients
This interval setting is used to batch up DDE data so that it can be transferred to client applications. When using a DDE
format performance gains only come when large blocks of server data can be sent in a single DDE response. To
improve the ability of the server to gather a large block of data, the update timer can be set to allow a pool of new data
to accumulate before a being sent to a client application. The valid range of the update timer is 20-60000 milliseconds.
The default is 100 milliseconds.
Wait
This parameter is used to configure a timeout for the completion of DDE request. If a DDE client request (either a Read
or Write operation) on the server cannot be completed within the specified timeout, an error will be returned to the DDE
Client. The valid range is 1-30 seconds. The default is 15 seconds.
Note: Changes made to the DDE options will take effect upon the next restart of the server.
FastDDE & Suitelink Options
The server's support of Wonderware Corporation's FastDDE and SuiteLink simplifies the task of connecting the server
with FactorySuite applications. The Wonderware connectivity toolkit is used to simultaneously provide OPC and
FastDDE/SuiteLink connectivity while allowing for quick access to device data without the use of intermediary bridging
software.
Important: In order for the FastDDE/SuiteLink interface to work with the Runtime, the Process Mode parameter must
be set to Interactive. For more information, refer to
Runtime Settings - Runtime Process .