Using alarms

Creating alarms for Equipments is similar to creating alarms for variables.

On the Engineering UI main menu navigate to Process Events > Event Config > Equipment Property Value Event Config.

New alarm may be created on the lower panel with headline Event Defininitions for Equipment property. You can start creating new from the edit button > new. Remember to Commit changes after you are done to save them.

"Property" is mandatory, but "Instance" is not.

Event Engineering properties

When defining the properties for the alarm, please find descriptions to all properties under Internal Events here.

Trigger property in detail

For trigger property there are many options you may choose from and you may find descriptions for all of these in Trigger Property table under Internal Events.

Reference value

The trigger condition, for example a "high limit" can depend on:

1. "Limit" : a fixed value
2. "Reference Variable" : a variable with changing values
3. "Reference Instance" and "Reference Property": These define one specific Equipment Property Value

These 3 are evaluated in this order and, if "Reference Variable" is present, it has higher precedence than "Limit". Furthermore "Reference Instance" & "Reference Property" have higher precedence than "Reference Variable".