Z-wave packets for 1 action: seems like a lot of them?

@jbeale1 wrote:

AKA, How many messages does it take to turn on a light bulb?

I’m a newcomer to Z-wave. I’m using HA 0.103.6 to control a EVA Logik ZW39 dimmer, with Zooz ZST10 S2 stick in RPi4. My automation sets the dimmer to 10/255 (which, in hex becomes 0x03 out of 0x63). Here is my code in /config/automations.yaml

- id: '1579109759606'
  alias: turn dimmer to 10/255
  description: turn dimmer to very low setting 10/255 or 4%
  trigger:
  - at: '10:00'
    platform: time
  condition: []
  action:
  - data:
      brightness: 10
    entity_id: light.inovelli_unknown_type_c000_id_c002_level
    service: light.turn_on

And below is the resulting OZW log from http://hassio:8123/config/zwave showing what happens when this one automation is manually triggered once. I’m counting 3 packets sent and 10 packets received. The controller and device are two feet apart, and I have only one Z-wave device in the entire house. Is this message count typical or necessary? Can I do something to reduce the chatter? It’s still plenty fast with only one device, but if I end up with a lot of devices, having 13 packets result from every simple action may cause the system to become slower than it might otherwise be. I was expecting just one set command and one readback command, with response to each that would be 4 packets total not 13.

2020-01-15 09:36:23.993 Info, Node005, Value::Set - COMMAND_CLASS_SWITCH_MULTILEVEL - Level - 0 - 1 - 3
2020-01-15 09:36:23.994 Info, Node005, SwitchMultilevel::Set - Setting to level 3
2020-01-15 09:36:23.994 Detail, Node005, Queuing (Send) SwitchMultilevelCmd_Set (Node=5): 0x01, 0x0a, 0x00, 0x13, 0x05, 0x03, 0x26, 0x01, 0x03, 0x25, 0x4a, 0xab
2020-01-15 09:36:23.994 Detail, Node005, Queuing (Send) SwitchMultilevelCmd_Get (Node=5): 0x01, 0x09, 0x00, 0x13, 0x05, 0x02, 0x26, 0x02, 0x25, 0x4b, 0xa8
2020-01-15 09:36:23.994 Detail,
2020-01-15 09:36:23.994 Info, Node005, Sending (Send) message (Callback ID=0x4a, Expected Reply=0x13) - SwitchMultilevelCmd_Set (Node=5): 0x01, 0x0a, 0x00, 0x13, 0x05, 0x03, 0x26, 0x01, 0x03, 0x25, 0x4a, 0xab

2020-01-15 09:36:24.002 Detail, Node005,   Received: 0x01, 0x04, 0x01, 0x13, 0x01, 0xe8
2020-01-15 09:36:24.002 Detail, Node005,   ZW_SEND_DATA delivered to Z-Wave stack

2020-01-15 09:36:24.022 Detail, Node005,   Received: 0x01, 0x18, 0x00, 0x13, 0x4a, 0x00, 0x00, 0x02, 0x00, 0xda, 0x7f, 0x7f, 0x7f, 0x7f, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x67
2020-01-15 09:36:24.022 Detail, Node005,   ZW_SEND_DATA Request with callback ID 0x4a received (expected 0x4a)
2020-01-15 09:36:24.022 Info, Node005, Request RTT 28 Average Request RTT 29
2020-01-15 09:36:24.022 Detail,   Expected callbackId was received
2020-01-15 09:36:24.022 Detail,   Expected reply was received
2020-01-15 09:36:24.022 Detail,   Message transaction complete
2020-01-15 09:36:24.022 Detail,
2020-01-15 09:36:24.022 Detail, Node005, Removing current message
2020-01-15 09:36:24.022 Detail,
2020-01-15 09:36:24.022 Info, Node005, Sending (Send) message (Callback ID=0x4b, Expected Reply=0x04) - SwitchMultilevelCmd_Get (Node=5): 0x01, 0x09, 0x00, 0x13, 0x05, 0x02, 0x26, 0x02, 0x25, 0x4b, 0xa8

2020-01-15 09:36:24.030 Detail, Node005,   Received: 0x01, 0x04, 0x01, 0x13, 0x01, 0xe8
2020-01-15 09:36:24.031 Detail, Node005,   ZW_SEND_DATA delivered to Z-Wave stack

2020-01-15 09:36:24.054 Detail, Node005,   Received: 0x01, 0x18, 0x00, 0x13, 0x4b, 0x00, 0x00, 0x03, 0x00, 0xda, 0x7f, 0x7f, 0x7f, 0x7f, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x67
2020-01-15 09:36:24.055 Detail, Node005,   ZW_SEND_DATA Request with callback ID 0x4b received (expected 0x4b)
2020-01-15 09:36:24.055 Info, Node005, Request RTT 32 Average Request RTT 30
2020-01-15 09:36:24.055 Detail,   Expected callbackId was received

2020-01-15 09:36:24.069 Detail, Node005,   Received: 0x01, 0x0d, 0x00, 0x04, 0x00, 0x05, 0x05, 0x26, 0x03, 0x03, 0x03, 0x00, 0xda, 0x00, 0x09
2020-01-15 09:36:24.069 Detail,
2020-01-15 09:36:24.069 Info, Node005, Response RTT 46 Average Response RTT 46
2020-01-15 09:36:24.069 Info, Node005, Received SwitchMultiLevel report: level=3
2020-01-15 09:36:24.069 Detail, Node005, Refreshed Value: old value=0, new value=3, type=byte
2020-01-15 09:36:24.069 Detail, Node005, Changes to this value are not verified
2020-01-15 09:36:24.069 Detail, Node005,   Expected reply and command class was received
2020-01-15 09:36:24.069 Detail, Node005,   Message transaction complete
2020-01-15 09:36:24.069 Detail,
2020-01-15 09:36:24.069 Detail, Node005, Removing current message
2020-01-15 09:36:24.069 Detail, Node005, Notification: ValueChanged

2020-01-15 09:36:25.075 Detail, Node005,   Received: 0x01, 0x0b, 0x00, 0x04, 0x00, 0x05, 0x03, 0x20, 0x03, 0x03, 0xd8, 0x00, 0x0e
2020-01-15 09:36:25.075 Detail,
2020-01-15 09:36:25.075 Info, Node005, Received Basic report from node 5: level=3
2020-01-15 09:36:25.075 Detail, Node005, Queuing (Send) SwitchMultilevelCmd_Get (Node=5): 0x01, 0x09, 0x00, 0x13, 0x05, 0x02, 0x26, 0x02, 0x25, 0x4c, 0xaf
2020-01-15 09:36:25.075 Detail,
2020-01-15 09:36:25.075 Info, Node005, Sending (Send) message (Callback ID=0x4c, Expected Reply=0x04) - SwitchMultilevelCmd_Get (Node=5): 0x01, 0x09, 0x00, 0x13, 0x05, 0x02, 0x26, 0x02, 0x25, 0x4c, 0xaf

2020-01-15 09:36:25.083 Detail, Node005,   Received: 0x01, 0x04, 0x01, 0x13, 0x01, 0xe8
2020-01-15 09:36:25.083 Detail, Node005,   ZW_SEND_DATA delivered to Z-Wave stack

2020-01-15 09:36:25.102 Detail, Node005,   Received: 0x01, 0x0d, 0x00, 0x04, 0x00, 0x05, 0x05, 0x26, 0x03, 0x03, 0x03, 0x00, 0xd7, 0x00, 0x04
2020-01-15 09:36:25.102 Detail,
2020-01-15 09:36:25.102 Info, Node005, Response RTT 26 Average Response RTT 36
2020-01-15 09:36:25.102 Info, Node005, Received SwitchMultiLevel report: level=3
2020-01-15 09:36:25.102 Detail, Node005, Refreshed Value: old value=3, new value=3, type=byte
2020-01-15 09:36:25.102 Detail, Node005, Changes to this value are not verified
2020-01-15 09:36:25.102 Detail, Node005, Notification: ValueChanged

2020-01-15 09:36:25.122 Detail, Node005,   Received: 0x01, 0x18, 0x00, 0x13, 0x4c, 0x00, 0x00, 0x04, 0x00, 0xd8, 0x7f, 0x7f, 0x7f, 0x7f, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x65
2020-01-15 09:36:25.122 Detail, Node005,   ZW_SEND_DATA Request with callback ID 0x4c received (expected 0x4c)
2020-01-15 09:36:25.123 Info, Node005, Request RTT 47 Average Request RTT 38
2020-01-15 09:36:25.123 Detail,   Expected callbackId was received

2020-01-15 09:36:25.140 Detail, Node005,   Received: 0x01, 0x0d, 0x00, 0x04, 0x00, 0x05, 0x05, 0x26, 0x03, 0x03, 0x03, 0x00, 0xd8, 0x00, 0x0b
2020-01-15 09:36:25.140 Detail,
2020-01-15 09:36:25.140 Info, Node005, Response RTT 65 Average Response RTT 50
2020-01-15 09:36:25.140 Info, Node005, Received SwitchMultiLevel report: level=3
2020-01-15 09:36:25.141 Detail, Node005, Refreshed Value: old value=3, new value=3, type=byte
2020-01-15 09:36:25.141 Detail, Node005, Changes to this value are not verified
2020-01-15 09:36:25.141 Detail, Node005,   Expected reply and command class was received
2020-01-15 09:36:25.141 Detail, Node005,   Message transaction complete
2020-01-15 09:36:25.141 Detail,
2020-01-15 09:36:25.141 Detail, Node005, Removing current message
2020-01-15 09:36:25.141 Detail, Node005, Notification: ValueChanged

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Participants: 2

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