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Data Historian

historian administrator display on computer monitor

Data Historian

Our process data historian writes and retrieves historical data with industry leading speed. It can store millions of tags accurately and reliably without any data management.

Data Historian Features


Capable of storing data for millions of tags.

Fast Read/Write

Optimized read/write performance for time-series data.

Data Integrity

Lossless compression algorithms are used.

Data Accessibility

OPC, HDA, and ODBC compatible. We also have an API.

Custom Views

Custom hierarchical models of the data can be created.

Easy Administration

Easy data management without a database administrator.

Limitless Storage

No need to purge or optimize the database.

Tag Security

Tag security so you have complete control of data access.

Data Historian FAQs

Q: Will read/write speeds get slower as I store more data?
A: No. Our data historian does not use an underlying SQL database that can be prone to have slow lookups when large amounts of data are stored. Our process data historian has been optimized for time-series data.
Q: Will the historian lose data if a connection to the logger is lost?
A: No. Our logging mechanism creates a hard buffer on the logging machine that is not released until we receive a response indicating that the data was successfully archived. Even if communication gets lost between the logger and the data historian, the buffered data will be sent when communications are re-established.
Q: Can I set up redundant logging?
A: Yes. Redundant logging is possible. If two log sessions are sending data to the same process data historian, the data that gets to the historian first will be written and the data that comes in second will be discarded.
Q: Can I set up redundant data historians?
A: Yes. There are two ways to set up redundant data historians. The first method is to have a secondary historian mirror data from a primary process data historian. The second method is to have the logger write a copy of the logging data to two or more data historians.
Q: Can I set up a centralized data historian?
A: Yes. A historian can be configured to mirror data from multiple remote data historians.
Q: Can I get a high availability solution?
A: Yes. We offer a hardware solution that fully replicates hardware components to eliminate single points of failure and safeguard data integrity.

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