OPC HDA Server for ODBC - Your OPC HDA interface to your databases
Connecting OPC Classic to OPC UA with OPC UA Gateway
OPC DA/AE/HDA Client Solution .NET – Technosoftware GmbH
Installing and Starting the CygNet OPC HDA Server
OPCNet Broker HDA - OPC HDA Tunnelling from Integration Objetcs
Hierarchical Browsing | Historian 8.1 Documentation | GE Digital
PI OPC DA/HDA Server
OPC DA HDA Archiver - Gather & store OPC data in databases or flat files
OPC HDA Server Enterprise - access your historian data
UaGateway: Main Page
Link your islands of data, or transfer and consolidate historical data with MatrikonOPC History Link
OPC HDA Client Toolkit - OPC Integration with VB and C++ made easy!
OPC UA Gateway - Prosys OPC
Getting Started OPC HDA Server | Historian 7.1 Documentation | GE Digital
OPC tunneling software - OPCNet Broker HDA - Integration Objects
OPC HDA .NET Server Toolkit for custom OPC Historian servers.
Video Presentation on OPC Xi and OPC Classic Interoperability
![OPC HDA Interface - Browsing OPC Items Results in Same Item Repeated Over and Over [Q12279]](http://www.opssys.com/instantkb/Attachments/399d7057-ebef-4443-84bd-1c7e.jpg "OPC HDA Interface - Browsing OPC Items Results in Same Item Repeated Over and Over [Q12279]")
OPC HDA Interface - Browsing OPC Items Results in Same Item Repeated Over and Over [Q12279]
OPC UA Proxy - Quickly Connect OPC Classic Clients to OPC UA Servers
Data Source - OPC HDA Historian – Flow Support
OPC HDA Logger for CSV - Transfer OPC historical data to flat files
Kepware local historian plug-in improves operating efficiency – OPC Connect
NET Based OPC UA Client/Server SDK: Introduction to Classic OPC
Integration Objects announces OPC Easy Archiver for automatic OPC data retrieval and archiving
