Industrial Data Historian

Keep a complete record of your process data in a database you already own. OAS by SeQent logs it at high speed in an open format that any reporting system can query directly, with no proprietary historian locking it away.

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Data Historian

A Historical Record You Can Defend

Analytics, compliance, and root cause analysis are only as good as the record underneath them. Most systems store the latest value. This one stores every value.

Every Sample, In Order

Incoming data is processed on-premises in first-in-first-out sequence with resolution to 100 nanoseconds, so spikes and out-of-tolerance conditions are captured rather than averaged away.

Zero Data Loss

If the destination database becomes unavailable, data is buffered in real time and delivered automatically once communication is restored. Nothing is dropped when the link goes down.

Open, Queryable Format

Data lands in standard database platforms and CSV with no proprietary DLLs required to read it. Any reporting or analytics tool you already use can query it directly.

How It Works

How Does SeQent Historize Industrial Data?

With Open Automation Software by SeQent any system or device connected to the platform becomes a source for the historian, including application data sent through the SDKs and APIs.

Log Every Value, Not Just the Latest

Logging behavior is configurable for how and when data is recorded, so the record matches what the process actually did instead of what a polling interval happened to catch.

First-in-first-out processing with resolution to 100 nanoseconds
Continuous time-series and event-based recording in the same system
Snapshot Logging captures the data leading up to an event for root cause analysis
Logging enabled or disabled by conditions and calculations within the system

Keep the Data in Your Own Database

Records are written to standard database engines in an open format you control, so reporting, analytics, and audit never depend on a vendor’s own tools.

MS SQL Server, SQL Azure, Oracle, MySQL, PostgreSQL, MongoDB, MariaDB, and Cassandra
SQLite, InfluxDB, Amazon Aurora, RDS and Redshift, Google Firebase, and CSV files
Simultaneous logging to multiple destinations at once
One-Click Database sets up logging for all connected data in a single step

Survive Outages Without Gaps

Store-and-forward operates in real time at the point of collection, which matters most at remote sites and on intermittent networks where the link cannot be relied on.

Local buffering during network or database engine failure
Automatic transmission of buffered data once communications are reestablished
Feedback verification confirms back to the controller that data was logged
Log to more than 10,000 separate tables per server

Additional Capabilities

Built for Compliance, Analysis, and Audit

One-Click Database

Automatic logging setup for every connected data source in one step

Snapshot Logging

Capture the values leading up to an event, not just the event itself

Conditional Logging

Start and stop logging based on other tags, conditions, or calculations

Multi-Destination Logging

Write the same data to several databases and CSV simultaneously

Feedback Verification

Handshake confirmation to controllers that data was successfully stored

Database Tags

Read and write a database table or view as a live data source

Programmatic Setup

Configure logging groups through the .NET SDK or REST API

Cross-Platform Deployment

Windows, Linux, Docker, and low-footprint edge hardware

Browser-Based Configuration

Full server configuration from any web browser, local or remote

A Complete Record in Your Database. In Your Format.

See how Open Automation Software by SeQent historizes every value at full resolution, holds it through outages, and hands it back in a format any reporting tool can read.

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