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MQTT Transmission will publish all tag properties which are different from the default Ignition tag property setting in a BIRTH message.
Tag properties included in a DDATA message are limited to timestamp, dataType, value and quality.
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Cirrus Link modules often optimize Sparkplug payloads by excluding Good tag qualities from a payload. If you see a Sparkplug payload that is missing the tag quality, it should be assumed to be Good. |
MQTT Transmission can be configured to flitter/block tag properties from being published.
The filtered properties list is configured here and by default contains:
 accessRights;clampMode;deadband;deadbandMode;formatString;historicalDeadband;historicalDeadbandMode;historicalDeadbandStyle;historyEnabled;historyMaxAge;historyMaxAgeUnits;historyProvider;historySampleRate;historySampleRateUnits;historyTagGroup;historyTimeDeadband;historyTimeDeadbandUnits;opcItemPath;opcServer;permissionModel;rawHigh;rawLow;sampleMode;scaleFactor;scaleMode;scaledHigh;scaledLow;tagGroup;valueSource;expression;expressionType;ConfiguredTagPath;eventScripts;readPermissions;writePermissions;eventScripts
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