OPC Quality Parts
(Not recommended) Convert OPC DA quality ID into vendor, major, minor, and limit status
Support for the OPC Data Access (DA) standard will be removed in a future release. See Compatibility Considerations.
Industrial Communication Toolbox
The OPC Quality Parts block converts an OPC Data Access quality ID vector into four parts:
QID — Quality ID
OPC quality ID integer
OPC quality ID integer, typically connected to the Quality output port of an OPC Read block.
Vendor — Vendor quality information
Quality ID information specific to the vendor.
Major — Major quality value
0 | 1 | 3
Major quality value, indicating bad (0), uncertain (1), or good (3) quality. For more information, see Major Quality.
Sub — Quality substatus value
Each major quality status has an additional substatus that describes the quality of the value in more detail. The interpretation of the substatus value depends on whether its major quality is good, uncertain, or bad. See Quality Substatus.
Limit — Limit status
0 | 1 | 2 | 3
The limit status of the quality value, indicating that the value is not limited (0), fixed at a lower limit (1), fixed at an upper limit (2), or constant (3). See Limit Status.
Version HistoryIntroduced before R2006a
R2023b: OPC DA Support to Be Removed
Support for the OPC Data Access (DA) standard will be removed in a future release.