After event groups, event types, event levels, and system alarms have been defined
in the EOS SCADA Editor, the event and alarm list to be used in
the SCADA application must be prepared.
Event/alarm definitions are the fundamental configuration information that determines
which data the event is associated with, which type, group, and level it belongs to,
under which condition it becomes active, and how it is communicated to the operator.
Preparing Event/Alarm Definitions
After defining event groups, event types, event levels, and system alarms,
the event/alarm lists to be used for SCADA must be prepared.
For each event or alarm, the relevant data, definition, type, level, and group information
must be specified. In addition, the limit condition under which the alarm will become active
and the methods by which the operator will be notified are defined through the event/alarm properties.
Important:
Before event/alarm records are created, the
EVENT TYPES, EVENT GROUPS, and
EVENT LEVELS classes to be used must be prepared. Each event/alarm
must be associated with the appropriate classes.
To define events/alarms, click the EVENT RECORDER menu item
in the SCADA tree menu with the left mouse button.
The EVENT RECORDER menu contains the following five submenu items:
-
EVENT TYPES
-
EVENT GROUPS
-
EVENT LEVELS
-
SYSTEM ALARMS
-
EVENTS
The EVENTS submenu is used to create event and alarm definitions.
Using the Event Context Menu
The Event Context Menu can be opened by right-clicking
the EVENTS submenu item.
The following operations can be performed on event/alarm records using the
opened context menu:
-
Add Event/Alarm
-
Copy Event/Alarm
-
Cut Event/Alarm
-
Paste Event/Alarm
-
Delete Event/Alarm
-
Sort Event/Alarm
Information related to a newly added event/alarm can be modified using the
settings table located on the right side of the screen.
The editable properties and default values related to event/alarm definitions
are shown in the table below.
| Property Name |
Property Description |
Default Value |
| EventId |
Event/Alarm ID Number |
0 |
| EventActive |
Event/Alarm Active |
false |
| EventDataName |
Name of the Data Associated with the Event/Alarm |
— |
| EventDataType |
Event/Alarm Data Type |
Analog (Analog)
Digital (Digital)
Text (Text)
|
| EventDefinition |
Event/Alarm Definition |
— |
| EventType |
Event/Alarm Type |
— |
| EventLevel |
Event/Alarm Level |
— |
| EventGroup |
Event/Alarm Group |
— |
| EventLimitValue |
Event/Alarm Limit Value |
100 |
| EventLimitType |
Event/Alarm Limit Type |
Greaterthan (Greater Than)
Greaterthanorequalto (Greater Than or Equal To)
Lessthan (Less Than)
Lessthanorequalto (Less Than or Equal To)
Equalto (Equal To)
|
| EventAcknowledgement |
Wait for Acknowledgement for Event/Alarm Acceptance |
false |
| EventIndicator |
Show Event/Alarm in the Warning Indicator |
false |
| EventSound |
Use Audible Warning for Event/Alarm |
Nosound (Silent)
Sound (Audible)
Popup (Popup Screen)
|
Type, Level, and Group Relationship
As can be seen from the properties above, every defined event/alarm must be
included in a type, a level, and a group.
These classes must be defined in the
EVENT TYPES, EVENT GROUPS, and
EVENT LEVELS sections before event/alarm records are entered.
CAUTION:
The type, group, and level classes to be used during event/alarm definition
must be created in advance. This ensures that the defined event/alarm records
can be correctly associated with the classification structure within the project.
Defining Event/Alarm Data
The EventDataName property specifies the name of the data associated
with the event or alarm. This field provides a reference to the SCADA data on which
the event/alarm will be evaluated.
The EventDataType property is used to specify the type of data
associated with the event/alarm. Within EOS SCADA, the
Analog, Digital, and Text
options can be used for this property.
Analog: Can be used to compare numerical process values
against defined limits.
Digital: Can be used to generate events/alarms based on
binary or logical values.
Text: Enables text-based status and system information
to be used in event/alarm definitions.
Event/Alarm Limit Value and Limit Type
The EventLimitValue property specifies the
limit value required for the alarm to occur. The default value
is defined as 100.
The EventLimitType property specifies the condition under which
the read data value is compared with the defined limit value.
Greaterthan (Greater Than): The alarm becomes active when
the read data value is greater than the limit value.
Greaterthanorequalto (Greater Than or Equal To): The alarm becomes
active when the read data value is equal to or greater than the limit value.
Lessthan (Less Than): The alarm becomes active when
the read data value is less than the limit value.
Lessthanorequalto (Less Than or Equal To): The alarm becomes
active when the read data value is equal to or less than the limit value.
Equalto (Equal To): The alarm becomes active when the read
data value is equal to the limit value.
Wait for Acknowledgement for Event/Alarm Acceptance
The EventAcknowledgement property determines whether user
acknowledgement is required when the alarm list user control announces the
relevant event/alarm to the operator.
When this property is set to true, the user must acknowledge
the relevant event/alarm through the ALARM_INDICATOR user control. This property
operates in an integrated manner with the ALARM_INDICATOR user control.
Example:
For a critical alarm where operator intervention needs to be tracked,
EventAcknowledgement = true can be selected.
Show Event/Alarm in the Warning Indicator
The EventIndicator property determines whether the relevant event
or alarm will be included in the event/alarm list displayed in the
Alarm Indicator user control to alert the operator.
When the property is set to true, the relevant event/alarm is
included among the records to be reported to the user through the alarm indicator.
Use Audible Warning for Event/Alarm
The EventSound property can be used to define audible or
popup-based warning behavior for the operator when the relevant event or alarm occurs.
-
Nosound (Silent):
No audible warning is used.
-
Sound (Audible):
An audible warning is generated when the event/alarm occurs.
-
Popup (Popup Screen):
A popup warning screen is opened when the event/alarm occurs.
This property can be used to ensure that critical events are detected by the
operator not only through the alarm list, but also through audible or visual warnings.
Event/Alarm Definition Workflow
The following general procedure can be followed when defining a new event/alarm
in EOS SCADA Editor.
- EVENT RECORDER menuüsünü açınız.
- Select the EVENTS submenu.
- Right-click EVENTS to open the context menu.
- Perform the operation to add a new event/alarm record.
-
Edit the basic properties of the event/alarm in the settings table on the right.
- Specify the relevant data name and data type.
- Select the type, level, and group classes for the event/alarm.
- Specify the limit value and limit type.
-
Configure the acknowledgement, alarm indicator, and sound/popup warning options
according to the project requirements.
Creating event and alarm definitions in EOS SCADA Editor determines
which data will be used to evaluate the conditions monitored in the SCADA system
and how they will be reported to the operator.
Defining EventType, EventLevel, and
EventGroup information for each event/alarm ensures that events
are systematically classified within the system.
While the EventLimitValue and EventLimitType
properties determine the conditions under which an alarm becomes active,
the EventAcknowledgement, EventIndicator,
and EventSound properties configure the operator warning behavior.
Thus, event and alarm management in EOS SCADA can be structured as an integrated
system covering classification, evaluation, recording, and operator notification.
Preparing Event/Alarm Definitions
After defining event groups, event types, event levels, and system alarms,
the event/alarm lists to be used for SCADA must be prepared.
For each event or alarm, the relevant data, definition, type, level, and group information
must be specified. In addition, the limit condition under which the alarm will become active
and the methods by which the operator will be notified are defined through the event/alarm properties.
Important:
Before event/alarm records are created, the
EVENT TYPES, EVENT GROUPS, and
EVENT LEVELS classes to be used must be prepared. Each event/alarm
must be associated with the appropriate classes.
To define events/alarms, click the EVENT RECORDER menu item
in the SCADA tree menu with the left mouse button.
The EVENT RECORDER menu contains the following five submenu items:
-
EVENT TYPES
-
EVENT GROUPS
-
EVENT LEVELS
-
SYSTEM ALARMS
-
EVENTS
The EVENTS submenu is used to create event and alarm definitions.
Using the Event Context Menu
The Event Context Menu can be opened by right-clicking
the EVENTS submenu item.
The following operations can be performed on event/alarm records using the
opened context menu:
-
Add Event/Alarm
-
Copy Event/Alarm
-
Cut Event/Alarm
-
Paste Event/Alarm
-
Delete Event/Alarm
-
Sort Event/Alarm
Information related to a newly added event/alarm can be modified using the
settings table located on the right side of the screen.
The editable properties and default values related to event/alarm definitions
are shown in the table below.
| Property Name |
Property Description |
Default Value |
| EventId |
Event/Alarm ID Number |
0 |
| EventActive |
Event/Alarm Active |
false |
| EventDataName |
Name of the Data Associated with the Event/Alarm |
— |
| EventDataType |
Event/Alarm Data Type |
Analog (Analog)
Digital (Digital)
Text (Text)
|
| EventDefinition |
Event/Alarm Definition |
— |
| EventType |
Event/Alarm Type |
— |
| EventLevel |
Event/Alarm Level |
— |
| EventGroup |
Event/Alarm Group |
— |
| EventLimitValue |
Event/Alarm Limit Value |
100 |
| EventLimitType |
Event/Alarm Limit Type |
Greaterthan (Greater Than)
Greaterthanorequalto (Greater Than or Equal To)
Lessthan (Less Than)
Lessthanorequalto (Less Than or Equal To)
Equalto (Equal To)
|
| EventAcknowledgement |
Wait for Acknowledgement for Event/Alarm Acceptance |
false |
| EventIndicator |
Show Event/Alarm in the Warning Indicator |
false |
| EventSound |
Use Audible Warning for Event/Alarm |
Nosound (Silent)
Sound (Audible)
Popup (Popup Screen)
|
Type, Level, and Group Relationship
As can be seen from the properties above, every defined event/alarm must be
included in a type, a level, and a group.
These classes must be defined in the
EVENT TYPES, EVENT GROUPS, and
EVENT LEVELS sections before event/alarm records are entered.
CAUTION:
The type, group, and level classes to be used during event/alarm definition
must be created in advance. This ensures that the defined event/alarm records
can be correctly associated with the classification structure within the project.
Defining Event/Alarm Data
The EventDataName property specifies the name of the data associated
with the event or alarm. This field provides a reference to the SCADA data on which
the event/alarm will be evaluated.
The EventDataType property is used to specify the type of data
associated with the event/alarm. Within EOS SCADA, the
Analog, Digital, and Text
options can be used for this property.
Analog: Can be used to compare numerical process values
against defined limits.
Digital: Can be used to generate events/alarms based on
binary or logical values.
Text: Enables text-based status and system information
to be used in event/alarm definitions.
Event/Alarm Limit Value and Limit Type
The EventLimitValue property specifies the
limit value required for the alarm to occur. The default value
is defined as 100.
The EventLimitType property specifies the condition under which
the read data value is compared with the defined limit value.
Greaterthan (Greater Than): The alarm becomes active when
the read data value is greater than the limit value.
Greaterthanorequalto (Greater Than or Equal To): The alarm becomes
active when the read data value is equal to or greater than the limit value.
Lessthan (Less Than): The alarm becomes active when
the read data value is less than the limit value.
Lessthanorequalto (Less Than or Equal To): The alarm becomes
active when the read data value is equal to or less than the limit value.
Equalto (Equal To): The alarm becomes active when the read
data value is equal to the limit value.
Wait for Acknowledgement for Event/Alarm Acceptance
The EventAcknowledgement property determines whether user
acknowledgement is required when the alarm list user control announces the
relevant event/alarm to the operator.
When this property is set to true, the user must acknowledge
the relevant event/alarm through the ALARM_INDICATOR user control. This property
operates in an integrated manner with the ALARM_INDICATOR user control.
Example:
For a critical alarm where operator intervention needs to be tracked,
EventAcknowledgement = true can be selected.
Show Event/Alarm in the Warning Indicator
The EventIndicator property determines whether the relevant event
or alarm will be included in the event/alarm list displayed in the
Alarm Indicator user control to alert the operator.
When the property is set to true, the relevant event/alarm is
included among the records to be reported to the user through the alarm indicator.
Use Audible Warning for Event/Alarm
The EventSound property can be used to define audible or
popup-based warning behavior for the operator when the relevant event or alarm occurs.
-
Nosound (Silent):
No audible warning is used.
-
Sound (Audible):
An audible warning is generated when the event/alarm occurs.
-
Popup (Popup Screen):
A popup warning screen is opened when the event/alarm occurs.
This property can be used to ensure that critical events are detected by the
operator not only through the alarm list, but also through audible or visual warnings.
Event/Alarm Definition Workflow
The following general procedure can be followed when defining a new event/alarm
in EOS SCADA Editor.
- EVENT RECORDER menuüsünü açınız.
- Select the EVENTS submenu.
- Right-click EVENTS to open the context menu.
- Perform the operation to add a new event/alarm record.
-
Edit the basic properties of the event/alarm in the settings table on the right.
- Specify the relevant data name and data type.
- Select the type, level, and group classes for the event/alarm.
- Specify the limit value and limit type.
-
Configure the acknowledgement, alarm indicator, and sound/popup warning options
according to the project requirements.
Creating event and alarm definitions in EOS SCADA Editor determines
which data will be used to evaluate the conditions monitored in the SCADA system
and how they will be reported to the operator.
Defining EventType, EventLevel, and
EventGroup information for each event/alarm ensures that events
are systematically classified within the system.
While the EventLimitValue and EventLimitType
properties determine the conditions under which an alarm becomes active,
the EventAcknowledgement, EventIndicator,
and EventSound properties configure the operator warning behavior.
Thus, event and alarm management in EOS SCADA can be structured as an integrated
system covering classification, evaluation, recording, and operator notification.
