A Tag represents a register to poll from the End Device. The tag contains different options shown below.
Configuration
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Property | Description |
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Name | This is the name the Tag will be given when it is published via MQTT |
Register | This is the register Edge ACM will poll from the End Device |
Enable Backfill | If |
checked, all value changes, obeying deadband, for this tag are stored and published based on the type of backfill selected. NOTE: Currently |
only works with Sparkplug B Publishing | |
Backfill Type | This allows you to specify when Backfill should be recorded for this tag.
NOTE: This field is only editable when “Enable Back Fill” is checked. |
Deadband Type | This allows you to enable a Deadband for the Tag. There are 4 options available:
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Deadband | This sets how much the current value must differ from the previous value to be published again |
Trigger Conditions | If any exist, the triggers are evaluated on value change and if met, the quality of the tag is updated and Deadband is ignored |
Trigger Conditions: Condition | This sets how the current value will be compared to the preset value. There are 5 options available:
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Trigger Conditions: Value | This sets the value to which the current value will be compared. NOTE: For Percent Change, A value of 5 means a percent change of 5% or greater will return true. |
Trigger Conditions: Quality | This sets the quality the tag will take if a trigger is met. There are 3 options available:
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Trigger Conditions: Duration | The Duration extends the time that the quality set by the trigger will be assigned to the tag once the condition is no longer met. By default, the duration is 0 seconds, so the quality set by the trigger will last for just that poll cycle. A duration of >0 seconds, for example 10 seconds, means that the quality will extend for a total of 10 seconds after no longer meeting the triggered condition. If the triggered condition is met again within that duration, the duration is reset. NOTE: This duration will expire if a higher priority trigger condition is met. |
Trigger Conditions: Priority | The Priority is determined by the row order and drives the order that trigger conditions are followed. For example, if a tag has three trigger conditions, the first trigger listed has the highest priority, the second trigger has a lower priority than the first but a higher priority than the third, and the third trigger has the lowest priority. If multiple conditions are met at the same time, the condition with the highest priority will be followed. NOTE: When a condition with a duration > 0 is triggered, it will only be interrupted by a condition with a higher priority, or if it’s own conditions are met for a second time. |
Tag Group | The parent tag group for this tag. |