Rockwell Automation FactoryTalk Historian SE 3.0 H2H Interface User Guide - Manual (Page 152)

Terminology
146
Historian Collective
A Historian Collective is two or more replicated Historian Servers that collect data
concurrently. Collectives are part of the High Availability environment. When the primary
Historian Server in a collective becomes unavailable, a secondary collective member node
seamlessly continues to collect and provide data access to your Historian clients.
PIHOME
PIHOME refers to the directory that is the common location for Historian 32-bit client
applications.
On a 32-bit operating system
A typical PIHOME is C:\Program Files\Rockwell Software\FactoryTalk
Historian\PIPC .
On a 64-bit operating system
A typical PIHOME is C:\Program Files (x86)\PIPC.
Historian Interfaces reside in a subdirectory of the Interfaces directory under PIHOME .
For example, files for the Modbus Ethernet Interface are in
[PIHOME] \PIPC\Interfaces\ModbusE .
This document uses [PIHOME] as an abbreviation for the complete PIHOME or PIHOME64
directory. For example, ICU files in [PIHOME]\ICU .
PIHOME64
PIHOME64 will be found only on a 64-bit operating system and refers to the directory that is
the common location for Historian 64-bit client applications.
A typical PIHOME64 is C:\Program Files\Rockwell Software\FactoryTalk
Historian\PIPC .
Historian Interfaces reside in a subdirectory of the Interfaces directory under PIHOME64 .
For example, files for a 64-bit Modbus Ethernet Interface would be found in
C:\Program Files\Rockwell Software\FactoryTalk
Historian\PIPC\Interfaces\ModbusE .
This document uses [PIHOME] as an abbreviation for the complete PIHOME or PIHOME64
directory. For example, ICU files in [PIHOME]\ICU .
PI SDK
The PI SDK is a library of functions that allow applications to communicate and exchange
data with the Historian Server. Some Historian Interfaces, in addition to using the PI API,
require the use of the PI SDK.
Historian Server Node
A Historian Server Node is a computer on which Historian Server programs are installed. The
Historian Server runs on the Historian Server Node.