---
title: "Integrity Operating Window/Data Historian Interfaces"
slug: "integrity-operating-windowdata-historian"
updated: 2026-10-27T23:11:38Z
published: 2026-10-27T23:11:38Z
canonical: "ims-handbook.cenosco.com/integrity-operating-windowdata-historian"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://ims-handbook.cenosco.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Integrity Operating Window/Data Historian Interfaces

Integrity Operating Windows (IOWs) are limits on process variables, beyond which an operating facility’s integrity can deteriorate rapidly.

![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/IOW.png?sv=2026-02-06&spr=https&st=2026-10-28T15%3A58%3A49Z&se=2026-10-28T16%3A58%3A49Z&sr=c&sp=r&sig=avrETzFfy8GewKxP2svNW9Bc1B%2F8I1dPqIzyzfeL%2F9k%3D)

In the context of Asset Integrity Management, it is important to keep track of those limits together with real-time data from operations to ensure that facilities are operating safely.

IMS is able to interface with most major data historian systems, such as OSIsoft/Aveva Pi Historian, Aspentech DataWorks or PAS InBound to provide all of the insights necessary to support your facility’s inspection and maintenance regimes.

![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/image-DGECXBQD.png?sv=2026-02-06&spr=https&st=2026-10-28T15%3A58%3A49Z&se=2026-10-28T16%3A58%3A49Z&sr=c&sp=r&sig=avrETzFfy8GewKxP2svNW9Bc1B%2F8I1dPqIzyzfeL%2F9k%3D)

> [!NOTE]
> User Instructions
> 
> To learn more about IOWs, see: [IOW Overview](/v414/docs/iow-overview).

## Data Historian Interfaces

### Integrating with New Data Historians

> [!WARNING]
> If you would like to add a new, or modify an existing Data Historian interface, please contact one of ourCustomer SuccessRepresentatives: [**Contact - Cenosco**](https://cenosco.com/contact)**.**

### Check for Data Historian Tags

To check for available Data Historian Tags:

1. Navigate to Settings \ Data Transfer \ Interface \ Data Historians.
2. Click the **Check** button under the Check for tags column for your desired Data Historian.

![](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/image-MKADFJ25.png?sv=2026-02-06&spr=https&st=2026-10-28T15%3A58%3A49Z&se=2026-10-28T16%3A58%3A49Z&sr=c&sp=r&sig=avrETzFfy8GewKxP2svNW9Bc1B%2F8I1dPqIzyzfeL%2F9k%3D)

### Select a Default Data Historian for a Site

To assign a default Data Historian for a Site within your Asset Hierarchy:

1. Navigate to Settings \ Data Transfer \ Interface \ Data Historians.
2. Scroll down to the **Preferred location** grid.
3. Click **+** to add a new Preferred Location setting, or click the edit button at the left side of an existing entry.
4. Select a Source Data Historian and the Site for which you want it to be the default.
5. Click **Save**.

> [!NOTE]
> Note
> 
> If a Site does not have a default Data Historian selected, newly-created IOWs will select the last Data Historian selected by the User.