[Edge drivers] Issue with the ST Z-Wave switch driver

Developer Programs Support
1

@nayelyz
Not sure where to post this but I have 2 Zooz power switch zen15 both using the stock z-wave switch driver. Recently, not sure when, 1 of the 2 started displaying power in milliWatts while the other continue to display Watts.
This driver has no advanced settings so I know nothing was changed by me. How do I fix it from mW back to Watts?

2

Can you please check the status for each device to see which unit was saved for them, please?
You can do this by executing the command:

smartthings devices:status deviceID -j

Note: Please, remember the device ID is found in the devices list (command: smartthings devices)

3 
Plug #1 (dryer) displays in W
    "components": {
        "main": {
            "powerMeter": {
                "power": {
                    "value": 0,
                    "unit": "W",
                    "timestamp": "2022-07-28T03:43:44.950Z"
                }
            },
            "energyMeter": {
                "energy": {
                    "value": 28.9,
                    "unit": "kWh",
                    "timestamp": "2022-07-28T00:52:54.330Z"
                }
            },
            "refresh": {},
            "switch": {
                "switch": {
                    "value": "on",
                    "timestamp": "2022-07-26T12:54:12.200Z"
               

Plug #2 (washer) displays in mW
    "components": {
        "main": {
            "powerMeter": {
                "power": {
                    "value": 0.777,
                    "unit": "W",
                    "timestamp": "2022-07-28T03:44:06.856Z"
                }
            },
            "energyMeter": {
                "energy": {
                    "value": 28.9,
                    "unit": "kWh",
                    "timestamp": "2022-07-28T00:52:54.330Z"
                }
            },
            "refresh": {},
            "switch": {
                "switch": {
                    "value": "on",
                    "timestamp": "2022-07-26T12:54:12.200Z"
4

@nayelyz
The problem plug has started a new behavior. It shows W when off and mW when on. The other plug has not changed.

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1 Like
5

Is the other plug the same brand and model?

6

Yes. Same firmware also. Initially they both behaved the same displaying Watts until I noticed the change 4 days ago when automations stopped working. No idea when it actually changed.

Edit the device history shows everything in Watts. 0.8W when not running

7

Looks like load is not the same. Did you try to swap plugs or load. Or try using device that is using more than 1W

8

Also bar scale is meant to go up to around 3800-4000W, that is why is not showing the bar on 1.2W as is 1/4000 of that bar. I am assuming for less then 1W, they use different scale 1-1000mW, which look correct von your device

9

I haven’t changed anything because they worked as expected for months then one just changed. The screen shots were taken while the washer and dryer were not running. Even when running it continues to display mW instead of W.
Before this issue started it always displayed in W even when not running.

10

Is the load bigger than 0.8W (800mW)?

11

The device history displays in Watts.
Historically it has read 0.8W when not running.
I’m about to do a load of laundry so I’ll get a screen shot while it’s running.

1 Like
12

As of this evening the plug shows Watts when 1W or over. For the past few days it has displayed mW no matter what the wattage was. I was seeing crazy high numbers under power usage.

I still don’t know what made it change from displaying 0.8 W to 800mW but automations seem to be working again. I would have grabbed a screen shot but the app was unresponsive (per usual as of late on Android).

1 Like