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    • Smart IoT Highway
      IT-OT-IIoT IntegrationAugmented AIVisualization & Monitoring
      SIOTH® Related Products
      SIOTH® SCADAMQTT Universal BrokerOPC UA Universal Server
      See it in action
      Download NowWatch Demo Video
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      Seamlessly integrate your IT and OT in a secure way
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      Configure web-based SCADA and dashboards
      SIOTH® Related Products
      SIOTH® SCADA
      Web SCADA enabling monitoring in minutes
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      Unify Your OT Data with MQTT
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OPC DA, HDA, AE Database

OPC DA, HDA, AE Database: OPC Data & Alarms Logger to SQL, Oracle & CSV

Keep a historical record of your OPC industrial data. Collect real-time values, historical data, and alarms & events messages respectively from OPC DA, HDA, and AE servers, and store them straight into SQL Server, Azure SQL, Oracle, MySQL, PostgreSQL, MS Access, or CSV files. No scripting required.

OPC Easy Archiver Overview

One archiver for real-time data, history, and alarms

  • Archive OPC DA, HDA, and AE data with a lightweight, reliable product
  • Archive data into SQL-like databases or CSV files with minimal setup
  • Connect to multiple OPC servers simultaneously
  • Capture real-time data, historical data, and alarms and events automatically
  • Prevent data loss during network or system interruptions with built-in buffering
  • Ensure fast recovery with automatic reconnection
  • Control event handling with flexible, rule-based configurations
opc-architecture
Download User Guide
Licensing

OPC Easy Archiver Licensing Options

OPC Easy Archiver licenses provide access to a range of archiving capabilities designed to support different data sources, storage environments, and operational requirements. The license model of the OPC Easy Archiver depends on the selected OPC specifications and databases or file connectors:

OPC Specifications
OPC DA OPC HDA OPC AE
Database Connectors
MS SQL Server MySQL PostgreSQL Oracle MS Access ODBC OLEDB
File-Based Storage
CSV Files
Data collection and archiving, step by step

How It Works

OPC Easy Archiver sits between your OPC servers and your database as a Windows service. No manual intervention is required once configured.

Connect

Link to one or more local/remote OPC DA, HDA & AE servers simultaneously.

Collect

Pull real-time values, historical trends, and alarm/event streams on your schedule.

Historize

Write to SQL Server, Oracle, MySQL, PostgreSQL, Access, or CSV on reconnect.

Buffer

If the database or network drops, data queues locally instead of being lost.

Forward

Forward buffered data when communications are up (manually or automatically)

Watch Demo Video

OPC Easy Archiver Features

OPC Connectivity

  • Fully compliant OPC DA, OPC HDA, and OPC AE client
  • Connection to one or more local and remote OPC DA, HDA, and AE servers at the same time
  • Browsing any OPC DA, HDA, and AE servers' address space

Data Acquisition & Monitoring

  • Monitoring OPC item changes (value, quality, and timestamp) over time
  • OPC DA synchronous and asynchronous group reads and writes
  • OPC HDA synchronous/asynchronous reads and updates, with annotations' support
  • A Loop manager to schedule and automatically send synchronous and asynchronous read requests
  • OPC Alarms and Events notifications, alarm filters, support of vendor specific event attributes, and alarm acknowledgement

OPC Data Transfer & Historization

  • Data transfer and historization from OPC DA/HDA/AE servers to SQL-like databases
  • Support for a variety of SQL-like databases and file formats including Microsoft SQL Server, Azure SQL, Oracle, MySQL, PostgreSQL, Microsoft Access, and CSV files
  • Databases to OPC DA servers data transfer
  • Log event display and archiving
  • Detailed log event archiving for comprehensive monitoring

Resilience & Recovery

  • Continuous monitoring of the OPC and database servers' connection
  • Automatic reconnection to OPC servers when the connection is lost
  • Automatic reconnection to database servers when the connection is lost
  • Store and Forward capability allowing local data buffering upon communication loss with the databases and data recovery after successful reconnection

Automation & Rule Management

  • Rule management functionalities

Deployment & Operation

  • Ability to run archivers as Windows services for continuous background operation
OS & OPC Compatibility

Operating System Compatibility

Client Operating Systems
Windows
Windows XP SP3 Windows 7 Windows 8 Windows 10 Windows 11
Server Operating Systems
Windows Server
Windows Server 2003 SP2 Windows Server 2008 Windows Server 2008 R2 Windows Server 2012 Windows Server 2012 R2 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows Server 2025 Windows XP SP3
OPC Version Compatibility
OPC DA
OPC Data Access 1.0a 2.00 2.05a 3.00
OPC HDA
OPC Historical Data Access 1.10 1.20
OPC AE
OPC Alarms and Events 1.00 1.01 1.02 1.10

Why Teams Switch.

01
10–30 min

Typical time to a working configuration, from install to first archived tag.

02
300+

Documented OPC Easy Archiver deployments across process industries.

03
0 data loss

On network or database interruption, when store-and-forward buffering is enabled.

Frequently Asked Questions

OPC Easy Archiver is quick to install and configure – most users are up and running within 10 to 30 minutes.

For basic setups, such as connecting a single OPC AE server to a database, the process is simple and straightforward.

Even more advanced configurations involving multiple servers or custom database mappings can be completed with minimal effort. Our team is available to assist if needed, but in most cases, deployment is fast and hassle-free.

Not at all. OPC Easy Archiver is built with user-friendly configuration tool, so you can set up connections and archivers, and schedule rules through an intuitive graphical user interface, no coding required.

OPC Easy Archiver is designed to work with your existing storage infrastructure and helps you optimize usage through:

  • Change-based logging: Store only data value changes instead of fixed intervals
  • Lightweight output formats: log to SQL databases or compact CSV files

Based on our analysis of 300+ implementations, typical OPC Easy Archiver ROI includes: 60% average cost reduction:

Through optimized storage and compression, 80% reduction in data loss: Through reliable archiving, 90% faster data retrieval: Through advanced search capabilities, 100% compliance achievement: Through automated audit trails

OPC Easy Archiver covers OPC Classic - DA, HDA, and AE. If you need OPC UA connectivity, pair it with Integration Objects' OPC UA Proxy, which bridge UA sources into the same archiving pipeline.

Buffered data is written to local storage and forwarded in order once the connection with the database server is restored.

Buffer capacity is limited by available local disk space rather than a fixed time window. For outages expected to run more than a few hours, confirm available disk headroom on the archiver host.

A single OPC Easy Archiver instance can connect to multiple local and remote OPC servers concurrently. Depending on the number of tags, architecture and cyber security constraints, users typically choose to run multiple instances of the OPC Easy Archiver with a shared central database.

Resources & Documentation

OPC Easy Archiver Resources

Blog Post

Hardening OPC Easy Archiver: Security Best Practices for Industrial Deployments

User Guide

Step-by-step installation and configuration guide

Quick User Guide

Step-by-step installation and configuration guide

Product Demo Video

See the OPC product in action with real-world examples

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