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Properties in OPC Toolbox

By Category | Alphabetical List

AccessRights Inherent nature of access to item
Active Group or item activation state
CancelAsyncFcn Callback function file to execute when asynchronous operation is canceled
CanonicalDataType Server's data type for item
DataChangeFcn Callback function file to execute when data change event occurs
DataType Client item's data type
DeadbandPercent Percentage change in item value that causes subscription callback
ErrorFcn Callback function file to execute when error event occurs
EventLog Event information log
EventLogMax Maximum number of events to store in event log
Group Data Access Group objects contained by client
GroupType Public status of dagroup object
Host DNS name or IP address of server
Item Data Access Item objects contained by group
ItemID Fully qualified ID on OPC server
LogFileName Name of disk file to which logged data is written
Logging Status of data logging
LoggingMode Specify destination for logged data
LogToDiskMode Method of disk file handling for logged data
Name Descriptive name for OPC Toolbox object
Parent OPC Toolbox object that contains dagroup or daitem object
Quality Quality of data value as string
QualityID Quality of data value as 16-bit integer
ReadAsyncFcn Callback function file to execute when asynchronous read completes
RecordsAcquired Number of records acquired
RecordsAcquiredFcn Callback function file to execute when RecordsAcquired event occurs
RecordsAcquiredFcnCount Number of records to acquire before RecordsAcquired event occurs
RecordsAvailable Number of records available in OPC Toolbox engine
RecordsToAcquire Number of records to acquire for logging session
ScanRate Fastest possible data update rate
ServerID Server identity
ShutDownFcn Callback function file to execute when OPC server shuts down
StartFcn Callback function file to execute immediately before logging starts
Status Status of connection to OPC server
StopFcn Callback function file to execute immediately after logging stops
Subscription Enable server update when data changes
Tag Label to associate with OPC Toolbox object
TimeBias Time bias of group
Timeout Maximum time to wait for completion of instruction to server
TimerFcn Callback function file to execute when predefined period passes
TimerPeriod Period between timer events
TimeStamp Time when item was last read
Type OPC Toolbox object type
UpdateRate Rate, in seconds, at which subscription callbacks occur
UserData Data to associate with OPC Toolbox object
Value Item value
WriteAsyncFcn Callback function file to execute when asynchronous write completes
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