Aurora ABB Powerone Intergration Serial port selection

[BrenD24]

The problem

When setting up the intergration only the TTYs0 and TTYs1 serial interfaces are preseneted dispite there being more ports avalable

What version of Home Assistant Core has the issue?

Core-2025.1.4

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Aurora ABB Powerone Solar PV

Link to integration documentation on our website

https://www.home-assistant.io/integrations/aurora_abb_powerone/

Diagnostics information

No response

Example YAML snippet

Anything in the logs that might be useful for us?

Additional information

No response

[home-assistant]

Hey there @davet2001, mind taking a look at this issue as it has been labeled with an integration (aurora_abb_powerone) you are listed as a code owner for? Thanks!

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[BrenD24]

Some Images to add context incase my explaination isnt clear

[davet2001]

Hi @BrenD24 thanks for reporting this issue!

I'm sorry to hear that you are having problems making a connection.

The available ports in the web based setup for Aurora ABB Powerone should be the same as the ports listed by

python3 -m serial.tools.list_ports -s

If you are able to run this command from a terminal where HA is running, please tell me the output.

If that's not possible, could you tell me which hardware you are running on?

Thanks!

[BrenD24]

Hi, @davet2001 ,

The system is running Home assistant OS and not sure how to get to a shell on it to run the command.
The system is running atop VMware ESXi 7

ha hardware info shows the bellow output on serial ports however, not sure if it is helpful.

`- attributes:
DEVNAME: /dev/ttyS0
DEVPATH: /devices/pnp0/00:06/tty/ttyS0
MAJOR: "4"
MINOR: "64"
SUBSYSTEM: tty
TAGS: ':systemd:'
USEC_INITIALIZED: "3956810"
by_id: null
children: []
dev_path: /dev/ttyS0
name: ttyS0
subsystem: tty
sysfs: /sys/devices/pnp0/00:06/tty/ttyS0

• attributes:
  DEVNAME: /dev/ttyS1
  DEVPATH: /devices/pnp0/00:07/tty/ttyS1
  MAJOR: "4"
  MINOR: "65"
  SUBSYSTEM: tty
  TAGS: ':systemd:'
  USEC_INITIALIZED: "3956875"
  by_id: null
  children: []
  dev_path: /dev/ttyS1
  name: ttyS1
  subsystem: tty
  sysfs: /sys/devices/pnp0/00:07/tty/ttyS1

• attributes:
  DEVNAME: /dev/ttyS2
  DEVPATH: /devices/platform/serial8250/tty/ttyS2
  MAJOR: "4"
  MINOR: "66"
  SUBSYSTEM: tty
  TAGS: ':systemd:'
  USEC_INITIALIZED: "3956702"
  by_id: null
  children: []
  dev_path: /dev/ttyS2
  name: ttyS2
  subsystem: tty
  sysfs: /sys/devices/platform/serial8250/tty/ttyS2

• attributes:
  DEVNAME: /dev/ttyS3
  DEVPATH: /devices/platform/serial8250/tty/ttyS3
  MAJOR: "4"
  MINOR: "67"
  SUBSYSTEM: tty
  TAGS: ':systemd:'
  USEC_INITIALIZED: "3956731"
  by_id: null
  children: []
  dev_path: /dev/ttyS3
  name: ttyS3
  subsystem: tty
  sysfs: /sys/devices/platform/serial8250/tty/ttyS3`

[davet2001]

Ok, not easy to get a command terminal within the HA container if you've not already done that before. Probably not essential to debug this. If you want to try, it is possible using the 'Terminal & SSH' addon.

Technical info: If the system is reported as linux (which I believe HA OS will), this code is what is generating the serial port list:
https://github.com/pyserial/pyserial/blob/7aeea35429d15f3eefed10bbb659674638903e3a/serial/tools/list_ports_linux.py#L91-L106
Note that (see last line) this listing will try to hide what it deems as non-present internal serial ports.

Do you have 4 real serial ports?
How are they implemented and do they pass through to physical serial ports on your host machine?

The most common RS485 adaptors I see usually show up as /dev/ttyUSB0,/dev/ttyUSB1,/dev/ttyUSB2, etc.

[BrenD24]

VMWare is presenting presenting a virtual serial port from a Serial<>Ethernet Bridge (i.e. VMWare is handling the Network stuff).

The machine is only supposed to have one serial port as far as i know but i will have a dig deeper into what they are.

I have confirmed the bridge and everything works correctly (On a different VM with the same settings)

I acctualy think this may be a Driver issue now that i have dug a bit deeper, when i remove the Serial port from the VM the same 4 ports exsist

[BrenD24]

Had a win,

the OVA image i used to install Homeassistant OS was in VMWare compatability for V5.5 upgraded it and it seems to be working now

[davet2001]

Ok thanks for clarifying. Please reopen if this is not resolved.