Quality codes
Description
The quality code measures the quality of the connection from a data provider to the MindConnect element. For the Notifier app, this means that a value with quality code <> not equal to TRUE is ignored in the app, because the quality code is not transferred to MindSphere as well. This value is ignored for the creation of notification rules.
The following table is based on the OPC UA standard and shows the quality codes possible for OPC UA and S7:
Quality code (hex) |
Quality code (dec) |
Quality |
Description |
---|---|---|---|
0x00000000 |
0 |
GOOD |
Good quality, all values could be read. |
0x00BA0000 |
12189696 |
GOOD_INCOMPLETE |
Good quality, but the values may be incomplete. A least 1 value could be read. |
0x002F0000 |
3080192 |
GOOD_OVERLOAD |
The sampling interval has slowed down due to resource constraints. |
0x40920000 |
1083310080 |
UNCERTAIN_INITIAL_VALUE |
Uncertain initial value Quality of the value is worse than usual. It might still be possible to use the value. |
The quality code has the binary 8-bit structure QQSSSSLL. Digits 1 and 2 (QQ) of the quality code define the quality of the value. Digits 3 to 6 (SSSS) of the quality code specify the sub-status of the quality. Digits 7 and 8 (LL) are optional and define possible limits.