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OPC Toolbox Properties

Alphabetical List By Category

Server Connection and Browsing

GroupData Access Group objects contained by client
NameDescriptive name for OPC Toolbox object
TagLabel to associate with OPC Toolbox object
TypeOPC Toolbox object type
UserDataData to associate with OPC Toolbox object
HostDNS name or IP address of server
ServerIDServer identity
StatusStatus of connection to OPC server
TimeoutMaximum time to wait for completion of instruction to server

Data Access

Item and Group Management

GroupTypePublic status of dagroup object
ItemData Access Item objects contained by group
NameDescriptive name for OPC Toolbox object
ParentOPC Toolbox object that contains dagroup or daitem object
TagLabel to associate with OPC Toolbox object
TimeBiasTime bias of group
TypeOPC Toolbox object type
UserDataData to associate with OPC Toolbox object
AccessRightsInherent nature of access to item
ActiveGroup or item activation state
ItemIDFully qualified ID on OPC server
ScanRateFastest possible data update rate
CanonicalDataTypeServer's data type for item
DataTypeClient item's data type
QualityQuality of data value
QualityIDQuality of data value as 16-bit integer
TimeStampTime when item was last read
ValueItem value

Data Logs and Buffers

ActiveGroup or item activation state
DeadbandPercentPercentage change in item value that causes subscription callback
LogFileNameName of disk file to which logged data is written
LoggingStatus of data logging
LoggingModeSpecify destination for logged data
LogToDiskModeMethod of disk file handling for logged data
RecordsAcquiredNumber of records acquired
RecordsAvailableNumber of records available in OPC Toolbox engine
RecordsToAcquireNumber of records to acquire for logging session
SubscriptionEnable server update when data changes
UpdateRateRate, in seconds, at which subscription callbacks occur

Events and Callbacks

ErrorFcnCallback function file to execute when error event occurs
EventLogEvent information log
EventLogMaxMaximum number of events to store in event log
ShutDownFcnCallback function file to execute when OPC server shuts down
TimerFcnCallback function file to execute when predefined period passes
TimerPeriodPeriod between timer events
CancelAsyncFcnCallback function file to execute when asynchronous operation is canceled
DataChangeFcnCallback function file to execute when data change event occurs
ReadAsyncFcnCallback function file to execute when asynchronous read completes
RecordsAcquiredFcnCallback function file to execute when RecordsAcquired event occurs
RecordsAcquiredFcnCountNumber of records to acquire before RecordsAcquired event occurs
StartFcnCallback function file to execute immediately before logging starts
StopFcnCallback function file to execute immediately after logging stops
WriteAsyncFcnCallback function file to execute when asynchronous write completes
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