Rockwell Automation FactoryTalk Alarms and Events Quick Start - Manual (Page 13)

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Chapter 1
Overview of FactoryTalk Alarms and Events services
FactoryTalk View Site Edition now supports two systems that monitor and log alarms.
HMI tag alarm monitoring is still supported to maintain compatibility with existing
applications.
FactoryTalk Services Platform and FactoryTalk View Site Edition introduced a new
system of monitoring alarm and event information. You can now use FactoryTalk®
Alarms and Events, with multiple FactoryTalk products to provide a common,
consistent view of alarms and events throughout a FactoryTalk system.
FactoryTalk Alarms and Events supports two types of alarm monitoring:
„
Device-based alarm monitoring. Built-in alarm instructions, that are available in
RSLogix 5000 v. 16 or later, are programmed in a logic project and then
downloaded to a Logix5000 controller. The controller detects alarm conditions
and publishes event information, which can be displayed and logged.
„
Tag-based alarm monitoring. If you are not using Logix5000 controllers, or if
you do not want to use the built-in alarm instructions that are available with
RSLogix 5000, tag-based alarm monitoring offers the equivalent of HMI tag
alarm monitoring, but with an expanded feature set. Software-based Tag Alarm
and Event servers monitor controllers for alarm conditions through data servers
and publish event information that can be displayed and logged. Tag-based alarm
monitoring is supported for Logix5000 controllers, PLC-5, and SLC 500 devices
communicating through Rockwell Automation device servers (RSLinx
Enterprise), or for third-party controllers communicating through OPC Data
Servers.
FactoryTalk Alarms and Events:
„
Provides a single, integrated set of alarm information. All participating
FactoryTalk products work together to provide a consistent way to define,
manage, log, and view alarm and event information across a FactoryTalk
application.
„
Streamlines alarm programming and eliminates polling with device-based
alarm monitoring.
If your automation system includes Logix5000 controllers,
you can use pre-built alarm instructions, available in RSLogix 5000 v. 16 or later,
to simplify coding, and then download them to the controller. Device-based alarm
monitoring eliminates the need for duplicating alarm tags in an HMI server and
requires fewer controller communication resources by eliminating polling.
„
Supports other controllers in the integrated system with tag-based alarm
monitoring.
If your automation system includes other Rockwell Automation
controllers, such as PLC-5s or SLC 500s, or if you prefer not to use the new alarm
instructions with Logix5000 controllers, software-based tag servers monitor
controllers for alarm conditions and publish event information.