Settings for the OPC HDA Server
[opchdasrv] archiveResponseTimeout
- Type
- uint
- Default
- 5
- Range
- >0
Timeout in seconds for the request to the archive to be completed. If a request (e.g.
dpGetPeriod) is not completed in this time, an error is returned to the OPC HDA client.
[opchdasrv] cnsShowSystemNameForLocalViews
- Type
- bool
- Default
- 0
- Range
- 0|1
Determines if the local system name is used in the OPC address space. This entry is only
valid for server configuration using CNS View.
[opchdasrv] cnsShowViewInPI
- Type
- bool
- Default
- 1
- Range
- 0|1
Determines if the CNS View name is used in the OPC address space. This entry is only
valid for server configuration using CNS View. If this entry is set to 0 and the server uses
more than one view of a system, item name conflicts might appear.
[opchdasrv] maxHdaReturnValues
- Type
- uint
- Default
- 100000
- Range
- >0
The entry defines how many values the server can return in one read request. This
limitation is also indicated in the server status.
[opchdasrv] pollCount
- Type
- unsigned integer
- Default
- 32
- Range
- >0
Defines the number of data points that can be polled at once. If several polling requests
are queued they will be processed in the next driver cycle.
[opchdasrv] rootNode
- Type
- string
- Default
- WinCC_OA
Allows to specify the root node of the OPC server. If an empty string "" is defined, no
root node is defined and displayed in the address space. Note This entry only applies when
using CNS.
[opchdasrv] vendorName
- Type
- string
- Default
- ETM professional control GmbH
Allows to specify an arbitrary vendor name of the OPC HDA server.
