​.Quality Dotfield

The .Quality dotfield shows a numerical assessment of the quality of data provided by an I/O Server.

Category

Tag

Usage

Tag.Quality

Parameter

Tag

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

Data Type

Integer (read-only).

Valid Values

Values can range from 0-255.

See Also

.QualityLimit, .QualityStatus, .QualitySubstatus

Example

IF I0Tag.Quality <> 192 THEN

LogMessage("This data is not Good, assuming high-byte of 2-byte quality is zero");

LogMessage("Better to check .QualityStatus to avoid this assumption");

ENDIF;