====Citect Historian Driver====

This driver is used to access historical information from one or more Citect Historian SQL servers.

Citect Historian saves its records in Microsoft SQL Server, and includes a number of functions to make querying that data more efficient.

Note that while the [[ardi-citect|Citect live driver]] is suitable for Windows servers only, this driver will run on any system.

===Installation===

On Ubuntu, you can install the Citect Historian driver using the following command...

  sudo apt-get install ardi-citect-historian
  
On Windows, the driver is available from http://www.optrix.com.au/ardi/downloads/windows

===Database Security===

Please ensure that you have created a user for ARDI in your SQL database.

The user will also need to be given permissions to execute some of the Citect Historian functions present in your database - particularly functions such as...

    * fn_get_numeric_samples
    * ConvertTagnamesToTagIDs
    * ToDateUTC

These allow ARDI to deliver data very rapidly.

===Driver Versions===

[[Citect Historian Driver Information]]