'Control' task card
Universal control group
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Building Technologies
A6V10210424_j_en_--
Fire Safety
2018-08-29
12.3.1.2 Fire control properties
Figure 64: Properties in the detail editor of the element 'Fire control'
'START mode'
This setting defines the conditions for the activation of the control. The following
conditions are possible:
●
'No automatic activation': The control can only be activated manually with a
command.
●
'Formula true': The control is activated when the Boolean expression in the field
'Formula' is true.
●
'Value rising and >= threshold (all causes OR-combined)': The control is
activated as soon as a particular number of events of the respective event
category has occurred. This value is in the detail editor of the cause element, in
the field 'Threshold'.
'STOP mode'
This setting defines the conditions for the deactivation of the control. The following
conditions are possible:
●
'No automatic deactivation': The control can only be deactivated manually with
a command.
●
'Formula false': The control is deactivated when the Boolean expression in the
field 'Formula' is false again.
●
'All causes inactive': The control is deactivated when all assigned causes are
inactive again.
'Formula'
Several causes can be assigned with a formula. The following operators are
possible:
●
OR = '+'
●
AND = '*'
●
NOT = '–'
When brackets are used, a mixture of operators can also be used.
Example: '1 * (2 + 3)' means '1 AND (2 OR 3)'.
If no formula has been defined, all causes are linked with the OR function.