In Building Operation, you can create alarms or trend logs that are suitable for the variable type you have selected.
If you select objects or properties with different variable types, you can only mass create alarms or trend logs that have these variable types in common. For example, you want to create identical alarms for three analog variables and one multistate variable. When starting the New Object wizard, Building Operation restricts you to create out of range alarms, out of reference alarms, or variable status alarms. This because of the multistate alarm is not suitable to analog variables.
Type |
Alarm |
Trend Log |
Analog variable |
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Multistate variable |
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Digital variable |
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Enumeration variable |
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String variable |
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A trend log can only monitor values, not text strings. |
A trend log that monitors an enumeration records the enumeration value and not the enumeration definition.
For more information, see Event and Alarm Enumerations .
For more information, see Trend Log Enumerations .