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.