SIM100 User's Manual
2.4.3 Checking Connections
Once the NMEA 2000® connection and switch connection(s) to the SIM100 have been completed, check to see that information is being properly transmitted by observing an appropriate NMEA 2000® display. If you don’t see switch indicator status, refer to Section 5, “Troubleshooting”.
2.5 Configuring the SIM100
The SIM100 will transmit data over the NMEA 2000 network as it is shipped from the factory; however, it may require configuration, depending on the type of switch monitored. There are several configurable items within the SIM100, which are detailed in the remainder of this section.
You configure the SIM100 using a Maretron DSM250 display or other NMEA 2000® display unit that is capable of configuring the SIM100. Please refer to the Maretron DSM250 User’s Manual for details.
2.5.1 Device Instance
NMEA 2000® provides a unique device instance for each switch monitoring device on a vessel. This value should be programmed in each SIM100 so that each SIM100 is associated with a unique device instance number. The default instance number is 0, which is used to indicate the first SIM100 that is hooked to the network. Subsequent SIM100s connected to the network would be numbered 1, 2, and so on.
2.5.2Channel #1 Mode
2.5.3Channel #2 Mode
2.5.4Channel #3 Mode
2.5.5Channel #4 Mode
2.5.6Channel #5 Mode
2.5.7Channel #6 Mode
You must configure the SIM100 as to what type of switch circuit it is monitoring. The allowable values for this parameter are as follows:
•“End of Line Resistor” (default) – The switch circuit has a SPST switch connecting the A and B terminals, with a parallel 8 KΩ
•“No End of Line Resistor” – The switch circuit has a SPST switch connecting the A and B terminals, with a no parallel
•“Disable” – Use this value if no switch circuit is connected to the corresponding switch terminals. The SIM100 will indicate that no data is available for this circuit.
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