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Checks if the quality flag of a value is UNCERTAIN.
syntax
IsQualityUncertain(
val
)
Parameters
Type:
General purpose
value.
Return Value
Boolean
FALSE - other than UNCERTAIN. TRUE - UNCERTAIN.
Explanation
Checks whether the quality flag of the value is UNCERTAIN. "UNCERTAIN" indicates that communication with the PLC has never taken place.
Supported
○
Script Action
Can be used in server script Ver2 actions
Browser script
Can be used in browser scripts
Calculation Expression Syntax
Can be used in expression syntax (e.g. bind syntax)
reference
GetQuality
IsQualityGood
IsQualityBad
IsQualityUncertain