Differences

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--- ve.can:nmea-2000:start [2021-04-29 20:46] – [5. FAQ] mvader
+++ ve.can:nmea-2000:start [2022-03-16 12:19] (current) – [3.4 DC Voltage compatibility] stefanie
@@ Line 12: / Line 12: @@
 {{:ve.can:nmea-2000:image_hml5_nmea2k_arrows.png?direct&500 |}}//Picture showing the two integration options, NMEA2000 and HTML5 App. Click to see full size and see the difference between the two.//
 ==== 1.2 What is NMEA 2000? ====
-NMEA2000 is a communications standard used for connecting marine sensors and display units within ships and boats.
+NMEA 2000 is a communications standard used for connecting marine sensors and display units within ships and boats.
 Victron Energy is a member of the NMEA 2000 organisation, and we have several of our products certified by NMEA 2000.
@@ Line 94: / Line 94: @@
 {{ :ve.can:nmea-2000:vrm_tanks.png?direct&800 |}}
-==== 2.4 Using our converter interfaces (DEPRECATED!) ====
+==== 2.4 NMEA 2000 GPS integration ====
+Our GX devices can read location, altitude, speed and course from the NMEA2000 network. For details, see the GX manual.
+Note the other way around does not work. A GX Device which has a USB GPS installed does not emit GPS data out onto the NMEA2000 network as part of the NMEA2000-out function.
+==== 2.5 Using our converter interfaces (DEPRECATED!) ====
   * [[https://www.victronenergy.com/accessories/ve-bus-to-nmea2000-interface|VE.Bus to NMEA 2000 interface]]
@@ Line 111: / Line 117: @@
 NMEA 2000 Instances are used to identify multiple similar products connected on the same network.
-More information as well as how to configure them is explained in [[ve.can:changing_nmea2000_instances|]].
+There are several types of instances, the most important ones being the **Device instance** as well as the **Data instances**.
+More information about instances is in [[https://www.victronenergy.com/media/pg/Cerbo_GX/en/marine-mfd-integration-by-nmea2000.html#UUID-97031b2e-6b21-dd88-56ee-31c0aaca9183|the NMEA2000 chapter in the GX manual]].
+=== What settings need to be made? For example instances? ===
+That is a commonly asked question. The answer depends on the used brand of MFD:
+For **Garmin, Furuno, Maretron and Navico (B&G, Lowrance, Simrad) systems**: none. No instances, also not data instances such as the DC Detailed instance, need to be changed. It all works out of the box, other than configuring what field to show where on the MFD.
+For **Raymarine**, you might need to do some configuration: for systems with a SmartShunt and a SolarCharger, or multiple SmartShunts, or a Lynx Smart BMS, the data instances need to be configured to be unique. More information about that in the [[https://www.victronenergy.com/live/venus-os:mfd-raymarine|Victron & Raymarine document]], in the last chapter.
 ==== 3.3 Terminators and network layout ====
@@ Line 118: / Line 134: @@
   * Use the NMEA 2000 cable as the backbone.
-  * Run a separate drop cable separately to each Victron device [[https://nocache.victronenergy.com/accessories/ve-can-to-nmea2000-micro-c-male|VE.Can to NMEA 2000 cable]]
+  * Run a separate drop cable separately to each Victron device [[https://www.victronenergy.com/accessories/ve-can-to-nmea2000-micro-c-male|VE.Can to NMEA 2000 cable]]
-  * Only terminate the NMEA 2000 backbone, do not terminate on the VE.Can side.
+  * Only terminate the NMEA 2000 backbone. Do not install a terminator in any of the VE.Can ports on the Victron products.
+Or:
+  * Have the N2K network on one side, with one terminator. On the other end, change to the Victron network, with also one (Victron) terminator at the end.
+The first option is more aligned with the official N2K method. But, in case of multiple Victron products that need to be connected to the N2K network, will require more wire runs and definitively more NMEA2000 to VE.Can conversion cables.
+==== 3.4 DC Voltage compatibility ====
+The Victron VE.Can network accepts 9 to 70VDC.
+The NMEA-2000 network used to be 9 to 16VDC, which is, or will be, expanded to also include 24V. Which means that some NMEA-2000 devices are 9 to 16VDC, some are 9 to 30VDC, and some allow higher voltages.
+Also, the Victron VE.Can network will (in most cases) be powered with battery voltage. So for a 48V system, the voltage on the VE.Can network **exceeds** the NMEA-2000 accepted voltage levels.
+Therefore, it is important to **not** connect those power cables.
+The Victron cable used to connect both networks together, the [[https://www.victronenergy.com/accessories/ve-can-to-nmea2000-micro-c-male|VE.Can to NMEA 2000 cable]], has a removable fuse which is to be removed in case separation is necessary. A printed warning label is attached to the cable to warn about this.
-==== 3.4 Further reading on Victron and NMEA 2000 ====
+==== 3.5 Further reading on Victron and NMEA 2000 ====
   * [[https://www.victronenergy.com/upload/documents/Whitepaper-Data-communication-with-Victron-Energy-products_EN.pdf|Data communication white paper]]
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 ==== 4.1 Raymarine & EmpirBus ====
-Besides using NMEA 2000 and/or the Lighthouse App, integration onto Raymarine MFDs can also be done with an [[http://www.trigentic.com/#nxt-mcu|Empirbus NXT MCU ]]. Though both are connected to the same N2K network, the NXT MCU translates the N2K PGNs originating from the Victron equipment into Raymarine proprietary messages.
+Besides using NMEA 2000 and/or the Lighthouse App, integration onto Raymarine MFDs can also be done with an [[https://www.empirbus.com/#nxt-mcu|Empirbus NXT MCU ]]. Though both are connected to the same N2K network, the NXT MCU translates the N2K PGNs originating from the Victron equipment into Raymarine proprietary messages.
-In the [[http://www.empirbus.com/clickOnce/EmpirBusStudio-Demo/|EmpirBus Studio software]] you will find dedicated Victron building blocks than can be drawn onto the diagram.
+In the [[https://www.empirbus.com/#empirbus-studio|EmpirBus Studio software]] you will find dedicated Victron building blocks than can be drawn onto the diagram.
-Next, use the [[http://www.trigentic.com/#empirbus-graphic|EmpirBus Graphical tool]] to design the pages for on the Raymarine MFDs.
+Next, use the [[http://www.empirbus.com/#empirbus-graphic|EmpirBus Graphical tool]] to design the pages for on the Raymarine MFDs.
 The EmpirBus system requires the data instance of battery status and dc detailed status to be unique when using multiple sources. ([[ve.can:changing_nmea2000_instances#changing_a_data_instance|how to change data instances]])