5. CONFIGURATION
To configure an external event is necessary to insert a digital input module and perform the configurations described below,
in the CPU, through the MT8500 programming tool software.
Figure 46: Configuration Screen for External Event in CPU
In the configuration external event tab, within the CPU settings, it is necessary to select which module will be the interrup-
tion source, in the field Module Address: Name. Then it must be selected which input of this module will be responsible for
the event generation (IO_EVT_0). In this selection the options described in the figure below can be chosen.
Figure 47: NX1001 Module External Event Source Options
In addition to configuring the CPU it is required to configure the task responsible for executing user-defined actions. In
this case the user must use a project profile that supports external events. For further information see the section Project
Profiles. In the configuration screen of the ExternInterruptTask00 (figure below), it is necessary to select the event source in
the corresponding field. In this case, IO_EVT_0 should be selected since the other origin sources (IO_EVT_1 to IO_EVT_7)
are not available. In the sequence, the field POU should be checked if the right POU is selected, because it will be used by the
user to define the actions to be performed when an external event occurs.
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