signalk-n2k-switch-alias

This plugin works with NMEA 2000 switches such as the Maretron CKM12. It allows you to use the NMEA switch to control any switch path in SignalK.

There are 4 options for the action to be taken when the button is depressed. Toggle On/Off, Toggle On, Toggle Off, and Momentary.

Maretron DCR100 Configuration

In this example I have two channels configured on a Maretron DCR100. One is for my engine room blowers and one is for my horn. I have configured the path names using the PathMapper plugin. The switches use the following paths.

ER Blowers = Instance 21, Indicator 5 = electrical.switches.bank.dclc21.erBlowers.state

Horn = Instance 21, Indicator 2 = electrical.switches.bank.dclc21.horn.state

Maretron CKM12 Configuration

In this example I have configured the CMK12 to use device instance 30 on the NMEA network. I have further configured Key #8 LED for the blowers and Key #11 LED for the horn. When I press button #8, I want it to turn on the blowers and when I press key #11 I want it to blow the airhorn.

Plugin Installation

The plugin can be installed through the SignalK Appstore.

Once installed please restart SignalK.

Plugin Configuration

Browse to the SignalK plugin cofiguration and open the NMEA 2000 Switch Alias plugin. Here you can click on the + sign and then associate the physical switch to the path you wish to control. In this example I first configured Instance 30 Indicator 8 to control electrical.switches.bank.dclc21.erBlowers.state.

I then configured Instance 30 Indicator 11 to control electrical.switches.bank.dclc21.horn.state. In this case I only want the horn to blow so long as I am depressing the physical switch, so I set the action to Momentary.

When you are finished configuring the aliases, click the Submit button.