4.2.6 Defining filter conditions
The conditions of the event acquisition filter, event receiver filter, severe events filter, view filter, and the filter that can be defined for event search can be either exclusion-conditions or pass conditions. Exclusion-conditions are a set of conditions for JP1 events that you do not want to display (acquire). Pass conditions are a set of conditions for JP1 events that you do want to display (acquire). As a separate class of conditions, there are also common exclusion-conditions, which allow you to disable or apply a condition group in an event acquisition filter. Filter conditions apply in the following order of precedence: common exclusion-conditions, exclusion-conditions, and pass conditions.
You can define a combination of common exclusion-conditions, exclusion-conditions, or pass conditions in a condition group. A condition group contains one or more conditions, and is satisfied when all the defined conditions are satisfied. That is, the conditions in a filter are related by an AND condition.
When a filter consists of exclusion-conditions and pass conditions, combined into multiple condition groups of either type, those JP1 events matching the conditions in one of the exclusion-condition groups are filtered out, and those JP1 events matching the conditions in one of the pass condition groups pass through the filter and are transferred to the higher-level control (see Figure 4-10 Filters provided by JP1/IM and JP1/Base (when not using the integrated monitoring database) and Figure 4-11 Filters provided by JP1/IM and JP1/Base (when using the integrated monitoring database)). That is, the condition groups of exclusion-conditions or pass conditions are related by an OR condition.
The following figure shows how a filter works.
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![[Figure]](GRAPHICS/CS030800.GIF)
Except for the JP1/Base forwarding filter, you define filter conditions in JP1/IM - View.
For details about common exclusion-conditions, see 4.2.7 Common exclusion-conditions.
- Organization of this subsection
(1) Exclusion-conditions
Exclusion-conditions filter out events. JP1 events that match any one of the defined condition groups do not pass through the filter. Exclusion-conditions take precedence over pass conditions. To define exclusion-conditions, JP1/Base version 09-00 or later is required on the JP1/IM - Manager host.
You can define exclusion-conditions in an event acquisition filter, event receiver filter, severe events filter, view filter, and in event searches.