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Note
All other properties such as Sample Mode, Max Time Between Samples, Deadband etc are ignored when writing historic data

Edge Client

The Edge side client can publish historic data either in-order synchronously or asynchronously.

Note

If you are using MQTT Transmission as the Edge side client, under the MQTT Transmission Settings for your transmitter, navigate to the History Settings to disable the In-Order History configuration parameter.

Enabling the In-Order History for MQTT Transmission is unnecessary and will result in a waste of resources.  

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Anchor
writetotag
writetotag
Writing historical events directly to tag

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Note
All other properties such as Max Time Between Samples, Deadband etc are ignored when writing historic data

Edge Client 

If you are not using reference tags, the Edge side client must publish historic data in-order (synchronously) before live data resumes. This is because because Ignition will ignore writes to the tag if the timestamp on the tag change is older that the current value.

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