IDEC WindSRV - Manual (Page 30)

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_Address The _Address property tag indicates the current address for the tag it is
referencing.
_Description The _Description property tag indicates the current description for the
tag it is referencing.
_RawDataType The _RawDataType property tag indicates the raw data type for the tag
it is referencing.
_ScalingType The _ScalingType property tag indicates the scaling type (None, Linear
or Square Root) for the tag it is referencing.
_ScalingRawLow The _ScalingRawLow property tag indicates the raw low range for the
tag it is referencing. If scaling is set to none this value contains the
default value if scaling was applied.
_ScalingRawHigh The _ScalingRawHigh property tag indicates the raw high range for the
tag it is referencing. If scaling is set to none this value contains the
default value if scaling was applied.
_ScalingScaledDataType The _ScalingScaledDataType property tag indicates the scaled to data
type for the tag it is referencing. If scaling is set to none this value
contains the default value if scaling was applied.
_ScalingScaledLow The _ScalingScaledLow property tag indicates the scaled low range for
the tag it is referencing. If scaling is set to none this value contains the
default value if scaling was applied.
_ScalingScaledHigh The _ScalingScaledHigh property tag indicates the scaled high range for
the tag it is referencing. If scaling is set to none this value contains the
default value if scaling was applied.
_ScalingClampLow The _ScalingClampLow property tag indicates whether the scaled low
value should be clamped for the tag it is referencing. If scaling is set to
none this value contains the default value if scaling was applied.
_ScalingClampHigh The _ScalingClampHigh property tag indicates wether the scaled high
value should be clamped for the tag it is referencing. If scaling is set to
none this value contains the default value if scaling was applied.
_ScalingUnits The _ScalingUnits property tag indicates the scaling units for the tag it
is referencing. If scaling is set to none this value contains the default
value if scaling was applied.
See Also:
Statistics Tags , System Tags , Modem Tags and Property Tags .
Statistics Tags
Statistics Tags are used to provide feedback to client applications regarding the operation of the channel
communications in the server. Currently there are seven built-in statistics tags available when diagnostics are enabled.
See Also:
OPC Diagnostic Window .
Syntax Example: ._Statistics._FailedReads
Supported Statistics Tag Names
Tag Name Description
_SuccessfulReads The _SuccessfulReads tag contains a count of the number of Reads this
channel has completed successfully since the start of the application or
since the last time the _Reset tag was invoked. This tag is formatted as
unsigned 32 bit integer and will eventually rollover. This tag is Read
Only.
_SuccessfulWrites The _SuccessfulWrites tag contains a count of the number of Writes
this channel has completed successfully since the start of the
application or since the last time the _Reset tag was invoked. This tag
is formatted as an unsigned 32 bit integer and will eventually rollover.
This tag is Read Only.
_FailedReads The _FailedReads tag contains a count of the number of Reads this
channel has failed to complete since the start of the application or since
the last time the _Reset tag was invoked. This count is only
incremented after the channel has failed the request based on the