DSM250 User’s Manual

5.2.4.1.2 Primary Device Selection

Not all the data displayed by the DSM250 can be taken directly off the NMEA 2000 bus. Some require calculations with other parameters before the desired value can be displayed. An example would be the display of ground relative wind. In this case, the wind measured by the weather station needs to be combined with the vessel heading, course over ground, and speed over ground.

The instance number of the weather station is specified for each control.

This table provides the instance numbers of the other parameters used in the calculations.

Figure 15 – DSM250 Primary Device Selection

5.2.4.1.3 Refresh Network Information

The Device Configuration (5.2.3.1) and Device Selection (5.2.3.2) menus display a list of devices that have been detected on the NMEA2000 bus. This list is kept in memory permanently to reduce the overhead of requesting device information each time one of these pages is requested.

Pressing the Enter key while this selection is highlighted will clear the list of devices. It will be necessary to perform this action to remove traces of devices that have been removed from the bus.

5.2.4.1.4 Restore Factory Defaults

This option restores all settings on the DSM100 device to their factory default state.

5.2.4.2 Advanced Information

The Advanced Information Page displays information pertaining to the permanent setup and configuration of the DSM250.

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Maretron DSM250-01 Primary Device Selection, Refresh Network Information, Restore Factory Defaults, Advanced Information