Differences

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--- venus-os:large [2024-02-09 16:54] – [8.1 Disk space issues / data partition full] dfaber
+++ venus-os:large [2024-05-02 00:04] (current) – [6.2 Documentation and support for Signal K] mvader
@@ Line 129: / Line 129: @@
 A good tutorial on how to work with Node-RED is here: https://nodered.org/docs/tutorials/first-flow. On https://github.com/victronenergy/node-red-contrib-victron/wiki/Example-Flows you can find example flows that use the Victron Energy nodes. Searching for [[https://flows.nodered.org/search?term=victron|Victron]] on [[https://flows.nodered.org/search?term=victron|https://flows.nodered.org/]] will give all community flows that have been tagged "victron".
-There is also a 3 part introductory webinar on Node-RED and Venus available at the Victron Tech YouTube channel:
+==== 5.2 Three part introductory webinar ====
+This is a 3 part introductory webinar on Node-RED and Venus available at the Victron Tech YouTube channel:
 [[https://www.youtube.com/watch?v=i_iaciqn_Fg| 1. Getting started]]
@@ Line 142: / Line 144: @@
 The Node-RED editor can be accessed from your LAN at https://venus.local:1881/. For some systems, you'll have to replace ''venus.local'' by the ip-address. You can also access the Node-RED editor from VRM, where it is available via the //Venus OS Large// menu.
-__Standard nodes + Victron nodes__
+==== 5.3 Node specifications ====
 Node-RED comes with a core set of useful nodes, and within the Venus OS large install there is a set of Victron nodes added to that: the Victron Pallet. All of the different nodes are described [[https://github.com/victronenergy/node-red-contrib-victron/wiki/Available-nodes|here]].
@@ Line 391: / Line 394: @@
   * [[https://demo.signalk.org/documentation/|The official Signal K documentation]]
   * [[https://community.victronenergy.com/search.html?c=&includeChildren=&f=&type=question+OR+idea+OR+kbentry+OR+answer+OR+topic+OR+user&redirect=search%2Fsearch&sort=relevance&q=signal+k|Signal K topics on the Victron Community forum]]
-  * [[http://slack-invite.signalk.org/|Signal K Slack]] - a real time chat group including a special Victron channel.
+  * [[https://discord.gg/uuZrwz4dCS |Signal K Discord]] - a real time chat group including a special Victron channel.
 Do not contact normal Victron support for any help on SignalK. Its based on community support, not official support.
-==== 6.4 First use & configuring ====
+==== 6.3 First use & configuring ====
 === Step 1. Opening the dashboard ===
@@ Line 414: / Line 417: @@
 === Step 3. Configure can-bus connections ===
-For the Venus GX, SignalK comes pre-configured with a NMEA2000 listener for the VE.Can ports, its named "n2k-on-ve.can-socket", and uses the canboatjs.
+For the Venus GX, and Cerbo GX, SignalK comes pre-configured with a NMEA2000 listener for the VE.Can ports, its named "n2k-on-ve.can-socket", and uses the canboatjs. Here is how you can see the same in the Signal K Admin UI:
 ;#;
 {{:venus-os:cerbo-gx-signalk-canboatjs.png?400|}}
 ;#;
 Note that, to keep that operational, that port must be configured as a 250kbit VE.Can & NMEA2000 port in the Remote Console.
@@ Line 427: / Line 429: @@
 ;#;
+For more information on CAN-busses, see chapter 6.4.
 === Step 4. Adding Signalk Plugins or Webapps ===
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 TODO: explain & warn about data partition size & space (since thats where plugins are installed by signalk on Venus OS). Filling up the datapartition can corrupt Venus OS. More information about data partition on Venus OS here: https://github.com/victronenergy/venus/wiki/data-partition
+==== 6.4 CAN-bus ports ====
+Below lists documents the mapping from physical ports on the device to the interface within Venus OS. This information is needed when you want to deviate from the standard configuration.
+=== Cerbo GX ===
+^ Enclosure label ^ Interface ^ Notes ^
+| VE.Can 1 | can0 | Non-isolated and default enabled in SignalK |
+| BMS-Can | can1 | Non-isolated, not usable within SignalK for NMEA2000 |
+Within the Victron product range, CAN-bus ports that are labelled BMS-Can are limited in their functionality due to hardware constraints. Their only use is to connect to a managed battery such as BYD and Pylontech, used in landbased ESS & Off-grid systems - not in the marine market.
+=== Cerbo GX MK2 ===
+^ Enclosure label ^ Interface ^ Notes ^
+| VE.Can 1 | can0 | Isolated and default enabled in SignalK |
+| VE.Can 2 | can1 | Non-isolated |
+=== Ekrano GX ===
+^ Enclosure label ^ Interface ^ Notes ^
+| VE.Can 1 | vecan0 | Isolated |
+| VE.Can 2 | vecan1 | Non-isolated |
+When using SignalK on Venus OS on an Ekrano, there is currently no port enabled for N2K traffic in the default configuration. Configure it manually instead, see here for more information: https://community.victronenergy.com/questions/263126/ekrano-gx-vs-signal-k-no-n2k-on-vecan-socket.html?childToView=263206#answer-263206.
 ==== 6.5 Signal K FAQ ====
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 Note that Venus OS itself does **not** show a notification or warning when the data disk is full. And know that the other disks are read-only unless remounted to read/write as per [[https://www.victronenergy.com/live/ccgx:root_access|these root access instructions]].
-The easy solution is to do full GX factory reset, as per the instructions in the GX user manuals. This includes downloading a file called venus-data.tgz.
+Depending on what the issue is, there are a few things you can do:
+  - Do full GX factory reset, as per the instructions in the GX user manuals. This includes downloading a file called venus-data.tgz; see GX manual for details. Disadvantage is that you'll need to reconfigure the GX.
+  - Remove all Signal K Server log files. In case you're using SignalK, then we recommend to try that option first. See next chapter on how to do that (requires a USB stick or SD Card), and once done make sure to double check you're Signal K log setup; Most importantly, enable the ''Keep only most recent data log files'' option.
+  - A more detailed approach is logging in on SSH, and checking for disk space:
+**Tips and tricks to login a diagnose disk space**
-A more detailed approach is logging in on SSH, and checking for disk space. Here are a few useful commands.
+Require root access: https://www.victronenergy.com/live/ccgx:root_access.
 The ''df'' command shows disk space including percentage in user for all mounted storages. Note the 100% full of below data partition. That is a problem. It should show maybe 10, 20 or 30%, but never 100% in use.