Maretron J2K100 Configuration. Maretron DSM250-01

DSM250 User’s Manual

6.17 Maretron J2K100 Configuration

This describes the configuration of the Maretron J2K100 firmware version 1.0.7. The DSM250 is capable of configuring settings for the J1939 to NMEA 2000® Gateway (J2K100). A screenshot of the

J2K100 configuration menu is shown in Figure 132 below.

Figure 132 – J2K100 Configuration Screen

6.17.1 Advanced Configuration

Advanced Configuration changes some complex parameters within the device, and should only be performed by an advanced user. Typically advanced configuration is only done at installation and should not need to be done while at sea.

Figure 133 – J2K100 Advanced Configuration Screen

6.17.1.1 Data Damping

In order to smooth the results viewed on a display, you may individually change the data damping period that the J2K100 uses when sending fuel rate and tachometer (engine RPM) information. The default is to use no damping (0.0 seconds). You may program the damping from none up to 5 seconds.

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6.17.1.2 Device Instance

The Device Instance will be used to identify the J2K100 module on the network. If a GenSet is connected to the J1939 network, and the AC parameters passed through the J2K100 interface, the

GenSet will also be identified using Device Instance number.

6.17.1.3 Installation Description

This entry allows you to modify the NMEA 2000 installation description text strings. You can enter any information you like here, such as the date the unit was installed, or the location in which it was installed, for later reference. Tools such as Maretron N2KAnalyzer allow you to view these values

later. See section 3.3.4 for details on how to enter a textual value.

6.17.1.4 J1939 Diagnostic Messages

The J2K100 can optionally pass through J1939 diagnostic messages, used to indicate fault conditions on engines and transmissions, from the J1939 interface to the NMEA2000 ® network so that NMEA

2000 ® connected displays can interpret these diagnostic codes. To change the transmission status of the J1939 diagnostic messages, use the Scroll Up ( ) or Scroll Down ( ) keys to move the highlighted cursor to the “J1939 Diagnostic Messages:” menu item. Then, press the Enter key ( ) to move the highlight to the value field, which displays either Enable or Disable. Use the Scroll Up (

) or Scroll Down ( ) keys to change the value to the desired value, and then press the Enter key ( ) to accept the new value and store it within the J2K100.

Figure 134 – J2K100 J1939 Diagnostic Messages Configuration

6.17.1.5 NMEA2000 PGN Enable/Disable

The J2K100 interface transmits several different messages, which can be turned on or turned off by the DSM250 display. Pressing the Enter key ( ) with “NMEA2000 PGN Enable/Disable…” menu item selected causes the DSM250 to display the following screen.

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