SetMinMax method (TrendPro object)

Sets the minimum and maximum values of a trace. The method supports the following scale types:
  • Automatic
  • Minimum
     and
    Maximum
     values
  • Use tag Min and Max properties
Syntax
TrendPro1
.
SetMinMax
(
tagName
, [
modelName
], [
traceType
], [
option
], [
minValue
], [
maxValue
])
where
TrendPro1
 - is the name of a TrendPro object or an expression that evaluates to a TrendPro object.
tagName
 - is a parameter of String that specifies the trace name.
modelName
 - is an optional parameter of String that specifies the historical model name. The parameter is required if the
traceType
 is
TraceTypeAF
,
TraceTypeDataLog
,
TraceTypeHistorian
 or
TraceTypePIServer
.
traceType
 - is an optional parameter of the
TrendTraceType
 constant. The parameter can be omitted if the trace type is live data or data log.
option
 - is an optional parameter of the
MinMaxOption
 constant.
minValue
 - is an optional parameter that specifies the minimum value.
The parameter works only when the
option
 is
MinMaxOptionValue
.
maxValue
 - is an optional parameter that specifies the maximum value. The scale of the trace will not change if
minValue
 or
maxValue
 cannot be converted to numbers or if
minValue
 is greater than
maxValue
.
The parameter works only when the
option
 is
MinMaxOptionValue
.
Example
Private Sub SetTrendProMinMax()
'Sets the values as Automatic for CDT_158 from PIServer data.
'The following two lines of code are equivalent.
TrendPro1.SetMinMax "CDT_158", "PIServer", TraceTypePIServer, MinMaxOptionAutomatic
TrendPro1.SetMinMax "CDT_158", "PIServer", TraceTypePIServer, 0
'Sets the values as Minimum and Maximum value for Tag1 from datalog model Datalog1.
'The following two lines of code are equivalent.
TrendPro1.SetMinMax "Tag1", "Datalog1", TraceTypeDataLog, MinMaxOptionValue, 10, 100
TrendPro1.SetMinMax "Tag1", "Datalog1", TraceTypeDataLog, 1, 10, 100
'Sets the values as Tag properties for Tag1 from Historian data.
'The following two lines of code are equivalent.
TrendPro1.SetMinMax "Tag1", "Production Historian", TraceTypeHistorian, MinMaxOptionTagProperties
TrendPro1.SetMinMax "Tag1", "Production Historian", TraceTypeHistorian, 2
End Sub
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