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- Type
- The type of History Store with options of In-Memory and Disk-Backed (available in 4.0.17)
- Data stored in an In-Memory History Store will not be persisted across a module configuration change, module disable/enable, module restart or power loss.
- Data stored in a Disk-Backed History Store will persist across a module configuration change, module disable/enable, module restart or power loss.
- Message Capacity - deprecated in 4.0.19
- The maximum number of messages to store before dropping the oldest historical messages
- History Max Size
- The maximum number of megabytes history can use before dropping the data
- In_Memory Store & Forward will use the Ignition Java Heap memory
- Default is 500
- History Max Age
- Maximum number of minutes to store history before dropping the data.
- Default 44640 (31 days)
- Flush Period
- The period to wait in milliseconds between publishes when flushing messages upon reestablishing communication.
- The publishing of historic data messages is interleaved with the publishing of live data messages.
- Default 100
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{"serverDuration": 66, "requestCorrelationId": "6bad6c60fcc08c74"}