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--- ve.can:changing_nmea2000_instances [2025-02-06 17:35] – mvader
+++ ve.can:changing_nmea2000_instances [2025-02-06 22:04] (current) – [1.3 Considerations before changing instances] mvader
@@ Line 17: / Line 17: @@
 ==== 1.3 Considerations before changing instances ====
-It is only rarely necessary to change either device or data instances like the Fluid-, Battery- and DC-instance. See next section for when or in combination with what equipment this is necessary.
+First of all, note that it is only rarely necessary to change either device or data instances like the Fluid-, Battery- and DC-instance. Other sections in this document explain the specifics per make of MFD brand (Garmin, Raymarine, others).
-**Changing instances of data transmitted by a GX device, NMEA2000-out feature**
+When it is necessary or required to change instances, then depending on the type of product and system used, changing instances could also affect behaviour of the Victron equipment. In more detail:
-All instances can be set to any value, there is no related functionality,
+**GX devices, NMEA2000-out feature**
-**Device instance**
+All instances of the transmitted by a GX device can be set to any value, there is no related functionality. Includes device instances, and data instances.
+**Other products: Device instance**
 The NMEA 2000 device instance, which is the same as the VE.Can device instance, is by default set to 0 on all Victron products.
@@ Line 29: / Line 31: @@
 Some products, such as Lynx Smart BMS, Solar chargers with a VE.Can port and Battery chargers with a VE.Can port, have functionality that relates to the device instance. Therefore make sure to read the manual of that product before changing the device instance.
-**Data instances such as the Battery- and DC instance on chargers**
+**Battery chargers: Data instances (Battery- and DC instance)**
 Whilst it is possible to change the Battery and DC instances on a Skylla-i battery charger, changing those will render it impossible for a GX device to properly read the data. This is because the GX device expects the charger's output one to be on Battery & DC instance 0, output two on Battery & DC instance 1, and output three on Battery & DC instance 2.