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 Condition Summary Tags
For each OPC item you connect you, you can specify a condition - from that setup, the OPC Time Monitor
calculates a number of items for when the item is In Condition, Out Of Condition, and Stable.
The first items exposed are a set of summary tags for the selected condition - in this example "$InCondition" is chosen.
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Name
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Access Rights
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Canonical (Default) Data Type
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Description
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Readable
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Writeable
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PreviousValue
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Yes
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No
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VT_EMPTY *
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The value that the source item had at the beginning of the previous cycle. This item appears separately for every measurement type.
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ClientTime
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Yes
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No
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VT_DATE
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Returns the measured time, as seen on the client (receiving) end and measured by operating system ticks.
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ClientTime!TimeFormat
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Yes
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No
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depends on TimeFormat
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Same value as ClientTime, but expressed in a different way (converted), as given by TimeFormat.
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PreviousClientTime
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Yes
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No
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VT_DATE
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The previous value of the client time, i.e. the client time value reached in previous cycle.
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PreviousClientTime!Tim eFormat
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Yes
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No
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depends on TimeFormat
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Same value as PreviousClientTime, but expressed in a different way (converted), as given by TimeFormat.
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ServerTime
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Yes
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No
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VT_DATE
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Returns the measured time, as seen on the server (transmitting) end and measured by timestamps provided with the values.
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ServerTime!TimeFormat
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Yes
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No
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depends on TimeFormat
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Same value as ServerTime, but expressed in a different way (converted), as given by TimeFormat.
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PreviousServerTime
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Yes
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No
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VT_DATE
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The previous value of the server time, i.e. the server time value reached in previous cycle.
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PreviousServerTime!Ti meFormat
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Yes
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No
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depends on TimeFormat
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Same value as PreviousServerTime, but expressed in a different way (converted), as given by TimeFormat
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 Time Format Items - these items are available for any OPC item provided by the OPC Time Monitor in VT_DATE Format.
For each item, the time in the condition is available in different time formats based on the client needs - i.e. in
days, hours, seconds, minutes, etc.
In the listings below "TimeBranch" refers to the particular summary value - for example, ServerTime is a
"TimeBranch", meaning you could access ServerTime in seconds by using the item name YourItem!$InCondition!ServerTime!Seconds
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Name
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Access Rights
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Canonical (Default) Data Type
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Description
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Readable
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Writeable
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TimeBranch!Date
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Yes
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same as TimeBranch
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VT_DATE
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Same as TimeBranch - value of the TimeBranch as a VT_DATE data type.
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TimeBranch!Days
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Yes
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same as TimeBranch
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VT_R8
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Time value, expressed in days and a fraction of a day.
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TimeBranch!Hours
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Yes
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same as TimeBranch
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VT_R8
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Time value, expressed in hours and a fraction of an hour.
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TimeBranch!Microseco nds
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Yes
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same as TimeBranch
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VT_R8
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Time value, expressed in microseconds and a fraction of a microsecond.
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TimeBranch!Millisecon ds
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Yes
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same as TimeBranch
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VT_R8
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Time value, expressed in milliseconds and a fraction of a millisecond.
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TimeBranch!Minutes
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Yes
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same as TimeBranch
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VT_R8
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Time value, expressed in minutes and a fraction of a minute.
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TimeBranch!Seconds
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Yes
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same as TimeBranch
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VT_R8
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Time value, expressed in seconds and a fraction of a second.
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TimeBranch!Str
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Yes
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same as TimeBranch
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VT_BSTR
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Time value converted to string, such as "01:45:58". Uses the system default locale settings (not the custom locale settings). Note
that the typical resolution of the converted string is up to seconds; no fraction of a second is provided.
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