====== VenusOSLarge image: Signal K and Node-RED ======
===== 1. Introduction =====
This manual documents VenusOSLarge. VenusOS is the the software running on our [[https://www.... monitoring device]] as well as other GX devices. VenusOSLarge is an extended version of the common software, ad... stalled on the Victron GX devices when installing VenusOSLarge.
For more information on Signal K on VenusOS, s
layed as readable alarm messages. This requires a VenusOS update to v2.81 or higher. Older VenusOS versions will display old style alarm/error codes... rge current limit. That was a combined issue with VenusOS. The fix for the Venus is available on VenusOS v2.53 or higher.
* Fix NMEA device instance c... * Fix error "-100" on poor network connections or Venus devices with high CPU loads, now connection is re... updating via Bluetooth
GX devices:
* Improve Venus network settings layout
* Add new icons for Cer
to use the BMS-Can (or CAN-bus) connection of a [[venus-os:start|GX device]] with the BYD batteries for the ... the minimum supported firmware version for the [[venus-os:start|GX device]] is v2.42. When used with B-Box ... inverter/charger units must be connected to the [[venus-os:start|GX device]] via the VE.Bus connection port.... ons are configurable in the ESS settings on the [[venus-os:start|GX device]].
In off-grid systems, the cont
h a VE.Direct port
MPPTs are controlled via the [[venus-os:start|GX device]]. Make sure the [[venus-os:start|GX device]] runs v2.15 or later, and the MP... le version.
The MPPT requires connection to the [[venus-os:start|GX device]] to regulate charge currents as ... , etc) To test operation, try disconnecting the [[venus-os:start|GX device]] from the MPPT. After a time-out... aged automatically by the SolarMD LOGGER V2 and [[venus-os:start|GX device]]. Temperature effects on charge
VE.Direct port__
MPPTs are controlled via the [[venus-os:start|GX device]]. Make sure the [[venus-os:start|GX device]] runs at least the minimum versi... version.
The MPPT requires connection to the [[venus-os:start|GX device]] to regulate charge currents as ... , etc)
To test operation, try disconnecting the [[venus-os:start|GX device]] from the MPPT. After a time-out...
Plug the side labeled Victron VE.Can into the [[venus-os:start|GX device]].
Then, plug a [[https://www.
vent disabled buttons from changing the size.
* VenusOSLarge, Reporting, Recurring Reports, and Report Templat... ice warning", "Runtime until service (hours)"
* VenusOSLarge: Add card for the new Node-RED Dashboard v2.
=== ... ylight savings time change.
=== 2022-12-21===
* VenusOSLarge: Show Node-RED link when it is in safe mode.
=== ... ion by ticking a checkbox.
=== 2021-11-24 ===
* VenusOSLarge: add menu item and buttons for Node Red, Node Red
o firmware 565 or newer when the GX device runs a VenusOS version older than v3.70, and ask to update VenusOS first.
* Firmware update: Reinstall the firm... o firmware 565 or newer when the GX device runs a VenusOS version older than v3.70, and ask to update VenusOS first.
=== 2026-10-07 (1.128.0) ===
* Upd... f sites with many alarms.
=== 2026-03-03 ===
* VenusOSLarge: Remove unnecessary "Missing NodeRed" toaster whe... oad time by fetching data in parallel more.
* VenusOSLarge: The links to external services like Node-RED and
that have a [[https://www.victronenergy.com/live/venus-os:start|GX device]] installed, and being internet-c... re version - they all meet the requirements.
* VenusOS firmware must be 2.65 or later.
* The ''Full'' access setting, which is on the [[venus-os:start|GX device]] menu -> Settings -> VRM Online ... devices and once completed show the result:
{{ :venus-os:fw_update_device_list2.png?nolink |}}
==== 3.2 F
n MPPT’s
* [[https://www.victronenergy.com/live/venus-os:start|GX-Devices]] (Colour Control, Venus, Octo, Cerbo, CANvu, Maxi)
//**NOTE**: Certain o... all cases a [[https://www.victronenergy.com/live/venus-os:start|GX-device]] running Victron's VenusOS is required to receive, process, and transmit the... sages to the [[https://www.victronenergy.com/live/venus-os:start|GX-device]]:
- **Adaptive Maximum Charge... y_compatibility:ro.png?direct|}}
===== GX-Device VenusOS Configuration =====
NOTE: VenusOS 2.60 has imp
is essential to use the BMS-Can connection of a [[venus-os:start|GX device]] with the Cegasa batteries for t... inverter/charger units must be connected to the [[venus-os:start|GX device]] via the VE.Bus connection port.... are managed automatically by the Cegasa BMS and [[venus-os:start|GX device]]. Temperature effects on charge ... BMS and communicated through the system by the [[venus-os:start|GX device]] to the inverter/charger and MPP
ment:
* Multi or Quattro inverter/charger
* [[venus-os:start|GX device]]
* Note that there is no AC se... note that the power setpoint register changed in Venus 3.50. Prior to Venus 3.50, the power setpoint would be written to regi... TT is available both on the local broker on the [[venus-os:start|GX device]], as well as remotely through th... which corresponds with the CCGX VE.Bus port. On a Venus-GX, use unit-id 242 instead.
=== a) Grid power s
us firmware and also the latest firmware in the [[venus-os:start|GX device]].
Firmware update instructions... nication remains active when switched off through VenusOS as long as AC in is available. In this case other... mplex systems are not supported and tested during VenusOS development.
__Recovery:__ auto-restart once the... er/charger to firmware 454 or higher; and running VenusOS v2.23 or later, a detailed VE.Bus Error 11 report
details:
- [[https://www.victronenergy.com/live/venus-os:large#signal_k|VenusOSLarge manual]].
- [[https://svrenaissance.com/victron... integrations, it will be best to use one of our [[venus-os:start|GX Products]]. It acts as a hub, collecting... olation, see [[https://www.victronenergy.com/live/venus-os:start|this document]].
==== 3.6 Further reading
to use the BMS-Can (or CAN-bus) connection of a [[venus-os:start|GX device]] with these batteries for commun... inverter/charger units must be connected to the [[venus-os:start|GX device]] via the VE.Bus connection port.... ons are configurable in the ESS settings on the [[venus-os:start|GX device]].
In off-grid systems, the cont... (BMS) are built into the latest version of the [[venus-os:start|GX device]].
=== 1.3 Solar Charger compati
DC Ripple}}
* {{:ve.bus:rva_-_theory_on_wiring_large_systems.pdf|presentation - Theory on wiring large systems}}'
* [[https://www.victronenergy.com/up... DC Ripple}}
* {{:ve.bus:rva_-_theory_on_wiring_large_systems.pdf|presentation - Theory on wiring large systems}}
* {{ :ve.bus:ve_online_-_multi_and_qu... itoring =====
It is strongly recommended that a [[venus-os:start|GX Family Product]] is used in conjunction
