4. Alarms
4.1 Introduction
4.1.1 Overview of alarm processing
The controller alarms prevent unwanted, damaging, or dangerous situations from occurring. The alarm handling is an adaptation of
the ISA 18.2 standard. You can configure alarm parameters to suit your design and operational needs.
Some of the alarms are
Enabled
by default in the controller. You can enable or disable certain alarms and configure their alarm
settings (typically the
Set point
and
Delay
) as required.
The alarm parameters, states, and operator actions are described in the following sections.
CAUTION
Improper configuration of the alarm parameters can result in unwanted operational conditions and possible damage to
equipment or injury to personnel.
INFO
Some of the alarms are not configurable, as the system must maintain a basic level of protection.
More information
See
Alarm handling
,
Overview of alarm handling
in this chapter for more information regarding the ISA 18.2 alarm
states and handling.
DESIGNER'S HANDBOOK 4189340911K UK
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