Maretron DSM410, Руководство пользователя

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Revision 1.7.2 Page 237
8.3.4 Trigger Source
This allows the selection of the parameter to be monitored. The parameters are laid out as per
Section 4.2. The trigger source is specified in three parts, which when combined will uniquely identify
a single parameter on the bus.
8.3.4.1 Type
The Type corresponds to the category of data.
The desired option is selected using the Scroll Up and Scroll Down buttons.
8.3.4.2 Data
The Data corresponds to the Data Type of data.
The desired option is selected using the Scroll Up and Scroll Down buttons.
8.3.4.3 Instance
The Instance corresponds to the instance of the data type on the bus.
The desired option is selected using the Scroll Up and Scroll Down buttons.
8.3.5 Description
This is a textual field that will be displayed on the DSM410 and transmitted to Alert Slave devices. It is
intended to describe the alert (e.g. Fire).
8.3.6 Location
This is a textual field that will be displayed on the DSM410 and transmitted to Alert Slave devices. It is
intended to describe the location at which the problem was detected (e.g. Main Stateroom).
8.3.7 Trigger Configuration
This set of fields is used to describe the condition under which the alert will be triggered. The sub-
fields will vary depending on the Trigger Type, which, in turn, is determined by the Trigger Source.
8.3.7.1 Trigger Type is High Alert
A high alert is used to signal you when a parameter value rises above a threshold you determine. For
example, you can set an alert to occur whenever the freezer temperature rises above 0°C.
8.3.7.1.1 Description
A high alert and associated diagram are shown in the figure below.