8.2 Using quality code
The quality code measures the quality of the connection from a data provider to the
MindConnect Nano. In Insights Hub you can enable or disable the transmission of the quality
code.
You can switch the quality code on or off:
TRUE: The quality code is transferred with the data to Industrial IoT.
FALSE: The quality code is not transferred with the data to Industrial IoT. Erroneous or bad
transmissions and signal losses can not be detected by Insights Hub. Instead the value 0 will
be stored for the missing data. You can find more information about the corresponding values
in chapter Quality codes OPC UA and S7 protocol.
Within a MindConnect Nano the quality code is set by default to on. You can activate or
deactivate the quality code using the Time Series Service API.
If you export the time series value (e.g. with Insights Hub Monitor) you can see the data points
with its connected quality code. This helps you to analyze time ranges where no data is available.
This will avoid drawing false conclusions from a null value.
The following graphic shows a dataflow overview of the quality code:
If the data provider (e.g. S7 PLC, OPC UA Server) is not available, the MindConnect Nano or the
data provider client will send up a "0" with a quality code. The value of the quality code shows
that this is not a valid data.
If the function "Quality code" is enabled for this data point all the information can be stored in
the database. The database creates a request to Insights Hub Monitor to show the bad
quality code information in a chart.
If the function "Quality code" is disabled, the value 0 will be saved anyway. But you cannot
figure out if this data is valid.
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