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4.11.4.3 Alarm Group Parameters<br />

After creating an alarm group, a parameter dialog box opens automatically. The parameter dialog box can also<br />

be opened by selecting the 'Properties' option from the shortcut menu of the group itself. Settings in this dialog<br />

box apply to all alarms in this group.<br />

4.11.4.3.1 Alarm Bit Field<br />

At least one BOOL array variable must be connected to the 'Alarm Bit Field' in the alarm group settings. If this<br />

variable is not connected, then an error will be displayed when closing the dialog box with the OK button. If the<br />

variable is not present while compiling the project, an error message will also be output. This alarm variable is<br />

checked for status changes and the assigned alarm texts are displayed accordingly.<br />

The first alarm in the group corresponds to the bit at array position 0, the second alarm at position 1, etc.<br />

4.11.4.3.2 Group Alarm<br />

During alarm configuration, there is an option to specify whether this alarm can trigger a group alarm. If a<br />

change in the alarm variable status causes this alarm to be displayed, this variable remains set to "1" until all<br />

alarms in that group which can trigger a group alarm have been reset and/or acknowledged. The variable is then<br />

reset to 0.<br />

Specifying this variable is optional.<br />

Introduction to <strong>Visual</strong> <strong>Components</strong> 2.3<br />

402 4.11.4.3 Alarm Group Parameters

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