Product specifications

Alarm Analysis Configuration
3BDS011222-510 B 143
14. In the Message field, enter the message you want to have in the Alarm and
Event list, in this case “+Very High Level”.
15. In the Inactive Message field, enter the message you want to have when the
alarm is inactive, in this case “-Very High Level”.
16. Give an expression in the Expression field, in this example Value > 90.
17. Click Apply.
Example 2 - OPC Server with no event handling. Say for example that you have
an OPC server without event handling. You want to have an alarm related to a
special property value - say the value VALUE in this example. You can easily do
this with help of the Alarm Expression aspect.
1. Add an Alarm Expression aspect to a relevant object in the Functional
Structure.
2. Select Condition Alarm in the Message Type area.
3. In the Condition field, enter a name to identify the expression, in this case
OPC property.
4. Select Process Alarm for SoftAlarms from the Category drop-down menu.
Figure 69. Alarm Expression Aspect