​.QualitySubstatus Dotfield

The .QualitySubstatus dotfield shows the quality sub-status of a data value provided by an I/O Server.

Category

Tag

Usage

Tag.QualitySubstatus

Parameter

Tag

Any discrete, integer, real, indirect analog, or message tag type.

Data Type

Integer (read-only).

Valid Values (SSSS) and (QQ)

Substatus (SSSS) for BAD quality (QQ=0).

0 = Non-specific

1 = Configuration error

2 = Not connected

3 = Device failure

4 = Sensor failure

5 = Last known value

6 = Communication failure

7 =Out of service

Substatus (SSSS) for UNCERTAIN quality (QQ=1).

0 = Non-specific

1 = Last usable value

4 = Sensor not accurate

5 = Engineering Units exceeded

6 = Sub-Normal

Substatus (SSSS) for GOOD quality (QQ=3).

0 = Non-specific

6 = Local override

See Also

.QualityStatus, .QualitySubStatus, .Quality