---
title: "Logic Controls"
slug: "logic-controls"
updated: 2024-02-01T11:01:39Z
published: 2024-02-01T11:01:39Z
canonical: "kb.dataparc.com/logic-controls"
---

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

# Logic Controls

PARCgraphics Designer’s logic controls aid in the creation and configuration of Alarm definitions. Each control evaluates a given condition within the logic that determines whether or not an alarm state has occurred. For example, the tag control reads in a tag’s value, the greater than control compares that value to a specified value, and then the alarm control indicates an alarm state if the tag value exceeds the specified value.

![](https://cdn.document360.io/59db2ca4-e512-446a-a143-a7c626447812/Images/Documentation/image194_001.jpg)

In addition to making it easier to build alarm definitions by using a set of visual tools, the logic controls can create alarms with complexity beyond the standard set of PARCalarm Configuration alarm definitions. Previously this would have required the creation of a custom calculated tag in PARCcalc Config or the Script Editor against which the alarm definition would be defined.

The end result of an alarm created with the logic controls is a new client-side CALC-source tag and a new PARCalarm definition against the tag.