Zipato ne-nas-ab02z.eu siren

Configuration Z-Wave
1

I am a novice HA user and am trying to get this Z-wave siren working.
Have the new z-wavejs integration working ok with a couple of door switches and it has recognised the siren, showing battery etc and a switch. But I cannot get the siren to sound.
I found some 2017 posts from people using something called ‘luup.call_action’ or directly sending z-wave commands but I dont know how to do this.
If I try to use the device switch shown I get the error shown below.
I would appreciate any help to get this working.
Thanks

" Logger: homeassistant.components.websocket_api.http.connection
Source: components/zwave_js/switch.py:58
Integration: Home Assistant WebSocket API (documentation, issues)
First occurred: 2:26:39 PM (4 occurrences)
Last logged: 6:28:39 PM

  • [281473065494368] Command failed: unknown_error
  • [281472689759232] Command failed: unknown_error"
2

Well I have made some progress on my own.
After the recent z-wavejs update the siren reported as dead.
I removed the z-wave siren node and then re added it in secure mode.
Now the switch entity works and siren makes a noise.
I would still like to change the siren sound though and that needs a way of directly sending z-wave commands to it.