Define an analog alarm – Rockwell Automation FactoryTalk Alarms and Events Quick Start User Manual

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FactoryTalk Alarms and Events System Configuration Guide

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2. To trigger the alarm, right-click the contact on the rung (the one we named

“alarm_active”). On the context menu, click Toggle Bit. The contact should
change from a blue highlight to a green highlight.

Step 8: Finish creating alarms, and next steps

1. Define additional digital alarms or analog alarms, using either ladder logic,

function blocks, or structured text, and download the logic to the controller.

2. When you finish defining alarms, create a device-based alarm server, and then

configure it to subscribe to events detected by the Logix5000 controller. See
Chapter 4, “Add a device server for Logix5000, PLC-5, or SLC 500 controllers”
for instructions.

Define an analog alarm

An analog alarm defines a condition that evaluates a single analog tag against up to
four limit values (high-high to low-low) and up to two rate of change limits (positive
and negative).

If your FactoryTalk application does not include Logix5000 controllers, or if your
controllers are not programmed with the new alarm instructions included in RSLogix
5000 v. 16 or later, see Chapter 5, “Add an OPC Data Server for third-party
controllers” and
Chapter 6, “Add a tag-based alarm server for Logix5000, PLC-5,
SLC 500, or third-party controllers”
.

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