Allow Float on MQTT Gas meter

[herm42]

In have a zwave gasmeter in my setup which is included to domoticz since years. There is only a small bug ... if you look at the device ...

and on the utility page ...

you can see that the m³ value is truncated ... is there a way to allow float here?

[gizmocuz]

I think your divider in the settings is not correct... did you use 3 m3?

This is mine:

[herm42]

if i change the counter divider from 1 to 1000 nothing changes ...

weird

[herm42]

fyi .. i'm on the latest beta

[herm42]

i do not understand what this counter divider is used for ... in my case the meter is correct ... 15125.520m³ is the value stored at the zwave meter. So counter divider 1 should be the right one ?

... yes I used 4m³ today

[gizmocuz]

Could you perform the steps here at "Debugging MQTT' and post here the complete config topic name and payload, as well as the data name and payload?

https://www.domoticz.com/wiki/MQTT#Debugging_MQTT

With this I should be able to simulate your gas meter and see why floats are not handled

Did you use 15124.410 m3 gas? This value is correct? (including the 410 part?)

[herm42]

will provide the mqtt explorer data somewhen at the weekend. correct-> 15124.410 is the exact overall consumption

[herm42]

{ "type": "sensor", "object_id": "gas_cubic_meters_value", "discovery_payload": { "value_template": "{{ value_json.value }}", "unit_of_measurement": "Cubic meters", "icon": "mdi:thought-bubble", "device_class": "gas", "state_topic": "zwave-mqtt/87/50/0/value/131073", "availability": [ { "payload_available": "true", "payload_not_available": "false", "topic": "zwave-mqtt/87/status", "value_template": "{{'true' if value_json.value else 'false'}}" }, { "topic": "zwave-mqtt/_CLIENTS/ZWAVE_GATEWAY-zwave-js-ui/status", "value_template": "{{'online' if value_json.value else 'offline'}}" }, { "payload_available": "true", "payload_not_available": "false", "topic": "zwave-mqtt/driver/status" } ], "availability_mode": "all", "json_attributes_topic": "zwave-mqtt/87/50/0/value/131073", "device": { "identifiers": [ "zwavejs2mqtt_0xe9a1d9f4_node87" ], "manufacturer": "NorthQ", "model": "NorthQ Gas Meter (NQ-9121)", "name": "Erdgas", "sw_version": "3.30" }, "name": "Erdgas_gas_cubic_meters_value", "unique_id": "zwavejs2mqtt_0xe9a1d9f4_87-50-0-value-131073" }, "discoveryTopic": "sensor/Erdgas/gas_cubic_meters_value/config", "values": [ "50-0-value-131073" ], "persistent": false, "ignoreDiscovery": false, "id": "sensor_gas_cubic_meters_value" }

[herm42]

{"time":1729768277055,"value":15128.89,"nodeName":"Erdgas","nodeLocation":"Heizraum"}

[gizmocuz]

Thank you, I do miss the config topic, you provided only the payload might be something like homeassistet/sensor/xxx/.../config

[herm42]

{"value_template":"{{ value_json.value }}","unit_of_measurement":"Cubic meters","icon":"mdi:thought-bubble","device_class":"gas","state_topic":"zwave-mqtt/87/50/0/value/131073","availability":[{"payload_available":"true","payload_not_available":"false","topic":"zwave-mqtt/87/status","value_template":"{{'true' if value_json.value else 'false'}}"},{"topic":"zwave-mqtt/_CLIENTS/ZWAVE_GATEWAY-zwave-js-ui/status","value_template":"{{'online' if value_json.value else 'offline'}}"},{"payload_available":"true","payload_not_available":"false","topic":"zwave-mqtt/driver/status"}],"availability_mode":"all","json_attributes_topic":"zwave-mqtt/87/50/0/value/131073","device":{"identifiers":["zwavejs2mqtt_0xe9a1d9f4_node87"],"manufacturer":"NorthQ","model":"NorthQ Gas Meter (NQ-9121)","name":"Erdgas","sw_version":"3.30"},"name":"Erdgas_gas_cubic_meters_value","unique_id":"zwavejs2mqtt_0xe9a1d9f4_87-50-0-value-131073"}

[gizmocuz]

I think you have to re-read the above page, specially

Debugging MQTT Use MQTT Explorer tool

It mentions the icons to copy the topic and payload

[gizmocuz]

for instance, your payload topic is

wave-mqtt/87/50/0/value/131073

I managed to create the config topic myself, so hold on... going to debug the issue.

[gizmocuz]

Could you try beta 16291? You should also get a normal 'Gas' device instead of a RFXMeter

[herm42]

thx for the fast fix! new "P1 smart meter, Gas" has been detected. :-) Is there a way to migrate the old data to this new device (replace function does not find any destination device)?

[gizmocuz]

Could you send me a message on Slack and send me a backup of your database?

https://join.slack.com/t/domoticz/shared_invite/zt-wo7hrgc3-qIH0EFX_jcBrG2dBSOTRwg

I think it should be possible. The gas meter stores it's values in Meter_Calendar, and I think the RFXMeter device as well If both have the same values (of course your gas meter could be some m3 ahead now), you could also perform a SQL query to set the DeviceRowID of the old meter to the new GAS meter DeviceRowID (First make a backup of your database!!! Twice!!)

Like

UPDATE Meter_Calender SET DeviceRowID=456 WHERE (DeviceRowID=123)

[herm42]

thx for the info. was able to change the device id and correct the values/counter because of the new counter divider. everything is fixed now!

[gizmocuz]

Great!

[waltervl]

So issue can be closed?

[herm42]

everything is fine now ... thx for your work!