Alarm Configuration Expander

In the Models & Functions tab, the Alarm Configuration expander lets you create and configure alarms for the property currently selected in the Properties expander. Specifically, you can:

  • Edit a field system alarm
  • Create, edit, or delete a management platform alarm

For related procedures, see Configuring Alarms in Object Models.

 

Alarm Configuration Expander

 

Name

Description

1

None

Defines no alarm functionality for this data point property.

2

Valid

Displays, based on the color code, the source used for inheriting the information (see Presetting Behavior).

3

Field system

Defines the alarm configuration for the field system.

4

Management Station

Defines the alarm functionality on the management station.

5

Alarm kind

  • Discrete: When the alarm value is located within a defined range (for example, between 100 and 200) or a set of predefined values (for example, 10, 20, 30).
  • Continuous: When the entire value range is monitored for limits (for example = 50, = 75, or >= 199).

6

Alarm flags

  • None: All alarms are reported and logged. This is the standard behavior for integrated subsystems
  • No alarm on driver invalid: No alarm is generated for objects when there is no connection to the integrated subsystem. This applies also to system startup where alarms are not created before a connection to a subsystem can be established. In case a connection to a subsystem is lost, existing alarms from the subsystem are set back to normal. Depending on the chosen acknowledgment model such alarms are closed immediately.
  • No alarm on source time invalid: No alarm is triggered when a source time stamp is invalid (01.01.1970). NOTE: Desigo CC databases are set to 01.01.1970 by default before any other value is written to them.

7

New

Opens an input mask for defining the alarm condition in a row. Multiple alarm conditions can be defined.

8

Delete

Deletes the highlighted alarm condition.

9

Clear

Deletes all alarm conditions from the alarm table, (except the entries for Normal and Alarm).

Entry Mask for Management Platform Alarm

 

Name

Description

1

Alarm Class

Defines the alarm class to be enabled for an event.

2

Operand

Defines the condition (operand) for reporting the event.

3

Value Range

Defines the value at which an event is reported.

4

Event Text

Displays the alarm text for incoming event.

5

Normal Text

Displays the alarm text for outgoing event.

6

Alarm config. activated

When the check box is selected, the alarm is set to active.

 

Supported Operands

Operand

Meaning

Example

| |

Or

!| |

Nor

..

In the range of two values

!..

Not in the range of two values

>

Greater than

<

Less than

>=

Greater than or equal to

<=

Less than or equal to

Fault indication

  • The first value must be less than the second value. A valid value must be less than or equal to 30.
  • The value sequence is not ascending. A valid value must be less than 50.